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Multi-Physics Design and Optimization of a Complex Radar System
Today, most products are complex mechatronic combinations of advanced technologies, mixing electrical parts with controllers and embedded software. To efficiently manage innovative products, organizations are turning to a Model-Based Development approach for concept studies, control design, multi-domain system simulation and optimization. To meet this demand, Altair’s simulation and optimization suite aims to transform design and decision-making throughout product lifecycles with their multi-disciplinary software tools and consultancy services.


Flat Panel Post-Buckling Analysis with Implicit Method using OptiStruct
Many commercial aircraft are designed so that fuselage skins can elastically buckle below limit load and continue to operate safely and efficiently. This design regime makes for a very lightweight semi-monocoque structure compared to a non-buckling design. Therefore, predicting the local buckling, post-buckling behavior, and failures are critical to design and optimization of this kind of structure. The local panels buckle in a combination of compression and shear. Excess compression is redistributed to surrounding axial members (frames and stringers) and shear is continued to be carried by the buckled panels via tension parallel to the buckle waves. The compression redistribution and diagonal tension put special strength considerations on all involved structural components. This post-buckling behavior and the analysis method are both called intermediate diagonal tension (IDT).

CAEfatigue VIBRATION (CFV) - BASE SHAKE
The CF_BASE tool provides rapid and accurate structural response and fatigue results for a single input stress loading with virtually no limit on model size being analyzed

Altair SimSolid Technology Overview
An overview of the theoretical foundation of SimSolid, including mathematical background, computer implementation, and positioning among numerical methods.

Magnet Weight Minimization of PMM over Multiple Operating Points
Magnet Weight Minimization of Electric Traction Interior Permanent Magnet Motor Over Multiple Operating Points

This paper describes the process of using Altair tools such as Flux for synchronous permanent magnet motor EM FEA analysis and HyperStudy to minimize the weight of the NdFeB magnets of a typical IPM motor for electric traction application such as the IPM motor of the Toyota Prius 2010.

Simulation-Driven Design: Solving the Geometry Problem
One of the challenges of simulation is that geometry of CAD and traditional FEA are different, necessitating time consuming simplification work to define the mesh and resulting in losses in accuracy.

Altair SimSolid takes a different approach, analyzing fully featured CAD assemblies directly with no absolutely no mesh.

Ultra-Fast High-Fidelity Computational Fluid Dynamics on GPUs for Automotive Aerodynamics
In this white paper, we present the innovative commercial GPU-based Computational Fluid Dynamics (CFD) solver Altair ultraFluidX. This work features simulations of the DrivAer model, a generic, publicly available vehicle geometry that was developed by the Chair of Aerodynamics and Fluid Mechanics at the Technical University of Munich and which is widely used for testing and validation purposes.

The DrivAer model features rear end, underbody designs, and underhood flow. This model was then used to perform both wind tunnel tests and numerical simulations of the 40% scale open cooling geometry using perforated aluminum sheets with different opening ratios to mimic different radiator properties. Within, we will compare some of the results from these wind tunnel tests with numerical results obtained with Altair ultraFluidX.

Non-Linear Optimization of Suspension Link for Optimal Performance using Altair’s OptiStruct and HyperWorks
In recent times there is a high demand for lightweight automotive components which will reduce oil consumption and emissions. The components that are under non-linear load conditions would need optimization techniques that would yield a design which satisfies all performance targets and at the same time maintains the process efficiency with respect to time and cost. The use of CAE tools such as Altair’s OptiStruct and HyperWorks allows engineers to explore various design solutions starting from concept level to matured design that meets multiple requirements simultaneously with due consideration of manufacturing methods that allows engineers to arrive at an optimal design and process.

Testing Aerial Ladders in FEA: Wind Load Standard Equation vs CFD Wind Tunnel Analysis
To design and build an aerial ladder for a firetruck, the engineer needs to accurately
determine the working loads the ladder will encounter. Some of these can be easy to
interpret such as the weight of the firefighter in the basket at the end of the ladder, or
the weight of the water being supplied to the nozzle. Other loads can be a little harder
to quantify, such as how wind affects the ladder. There are several different ways to
determine this effect, and two of those will be explored in this paper: the standard
equation (ASCE 7-10), and CFD.

Fully Polarimetric Analysis of Wireless Connectivity for Smart Home and IoT Applications
This white paper presents a study of wireless connectivity of electronic devices in the Wi-Fi band. For accuracy, the analysis will use the full polarimetric information for each device’s antenna pattern. The study focuses on wireless connectivity between lamps and light switches in an indoor environment, with the goal to set guidelines for spacing between transmitters and receivers: wall-mounted switch boxes and ceiling-mounted lamps, as well as pairs of lamps. In general, the work flow would be similar for any type of wireless connectivity in environments such as a smart home, an industrial site, as well as streets and intersections (vehicle-to-vehicle or vehicle-to-infrastructure communication).

Multiphysics Design Optimization Using an Adjoint Sensitivity Analysis
Optimal design methods involving the coupling of fluid and structural solutions are a topic
of active research; particularly for aerospace applications. The paper presents a coupled fluid and structure approach to topology optimization using two commercial finite element solutions; AcuSolve and OptiStruct. A gradient based method is used to minimize the compliance of a structure subject to thermal loading. The optimal material distribution to minimize compliance is computed using the Solid-Isotropic Material with Penalty (SIMP) method available in OptiStruct. A volume fraction constraint is imposed in order to iteratively reduce the parts mass. Draw constraints are used to ensure manufacturability. The thermal loading is computed iteratively using a computational fluid dynamics (CFD) solution from AcuSolve. The optimization produces an innovative design which increases the heat rejection rate of the part while reducing the mass.

Seat Design for Crash in the Cloud
The benefit of design exploration and optimization is understood and accepted by engineers but the required intensive computational resources have been a challenge for their adoption into the design process. The HyperWorks Unlimited (HWUL) appliance provides an effective solution to these challenges as it seamlessly connects all the necessary tools together in the cloud. The aim of this study is to showcase the benefits of HWUL on an optimization driven design of a
complex system. For this purpose an automotive seat design for crash loadcases is selected.

Magnet Weight Minimization of Electric Traction Interior Permanent Magnet Motor Over Multiple Operating Points
This paper describes the process of using Altair tools such as Flux for synchronous permanent magnet motor EM FEA analysis and HyperStudy to minimize the weight of the NdFeB magnets of a typical IPM motor for electric traction application such as the IPM motor of the Toyota Prius 2010.

Fast contact method for speeding up solving finite element problems involving non-linear contact behavior
For large aerospace assemblies in finite element (FE) analysis problems, contact interaction between the surrounding bodies has to be established to simulate the load transferred between the components, like aircraft engine carrying bracket assemblies, spigots assemblies etc., and understand the effects of interaction between respective parts. In some cases, depending upon geometry of the assembly, the region of study may not be contact area but the stresses acting within the parts themselves. If there is no geometric or material non-linearity in such problems, a new contact formulation method known as Fast Contact can be used in these contact regions.

Antenna Placement Optimization for Vehicle-To-Vehicle Communications
Vehicle-to-vehicle (V2V) technology has the potential to significantly enhance driver safety. The type, placement, and orientation of V2V antennas all affect the performance of the communication system. Simulation software for high frequency electromagnetics can be used to analyze the farfield effects of various vehicle antenna configurations without the need to perform physical testing. We present a simulation-based method for optimizing the placement and orientation of a monopole antenna on a vehicle using a Global Response Surface Method (GRSM).

MIMO System Simulation in WinProp
This white paper presents and discusses practical examples of communication simulations involving Multiple Input Multiple Output (MIMO) technology. Two workflows exist for MIMO simulations in WinProp; this note discusses the workflows, and presents an example with relevant results for each.

Topology Optimization and Casting Feasibility of a Robot Arm
Oftentimes, in the design of a casting, suboptimal structural concepts are developed which at the same time are not castable, requiring multiple and time-consuming design iterations. This paper describes a process to generate both structurally efficient and also castable parts, while reducing the overall design cycle time. The optimal structure is determined by topology optimization, reducing component mass while maintaining performance requirements. This step is followed by a design smoothing operation and then by a casting simulation to check for casting defects. To demonstrate this software driven product design and process validation, solidThinking Inspire® is used to develop the concept design and Click2Cast® for casting process validation.

Design Optimization for Additive Manufacturing in OptiStruct with consideration of Overhang Angle in Topology Optimization
This paper gives a technical review and guidelines for positioning the current capabilities. Note that the following uses OptiStruct version v2018. There have been some changes to the discussed algorithms compared to previous versions. Generally, version 2017.2.3 can be used to reproduce all the presented results.

Snap-Fit Optimization for Achieving Desired Insertion and Retention Forces
Snap-fits are ubiquitous engineering features used to quickly and inexpensively assemble plastic parts. The geometric, material, and contact nonlinearities associated with snap-fit problems can present modeling challenges. Quasi-static solutions with explicit solvers are commonly used to analyze snapfits; however, OptiStruct’s nonlinear solver now possess the ability to solve these highly nonlinear problems implicitly. The first part of this study discusses an effective approach to using OptiStruct for the implicit finite element analysis of snap-fits. Once an accurate simulation model has been created, engineers typically make design changes in order to achieve desired insertion and retention forces. The second part of this study details how HyperMesh morphing and HyperStudy can be used to optimize the snap-fit design, resulting in desired insertion and retention forces while minimizing mass and ensuring structural integrity. The approach documented in this report can reduce the design time, material use, and failure rate of snap-fits used in industry.

MDO Director Datasheet
A multi-disciplinary optimization (MDO) approach allows you to explore all design requirements simultaneously and achieve lighter products, faster. Until now, enabling this process on live vehicle programs has been a challenge. Altair's MDO Director is a novel set of software tools that provides a process to rapidly set up, execute, post-process and explore the design of MDO problems.

FEKO Lua Script: ISAR Image Processing
The script computes and displays an inverse synthetic aperture radar (ISAR) image from backscattered radar cross section (RCS) data over frequency and angle. Windowing functions, resampling and extracting the local maxima positions to file are supported. The script requires a far field RCS request or far field RCS data imported from a file containing far field data (a .ffe file). Data imported from a .ffe file must be added manually to a 3D view.

Multi-physics Electric Motor Optimization for Noise Reduction
In an electric machine, the torque is generated by electromagnetic forces which also create some parasitic vibrations of the stator. These vibrations excite the mechanical structure on which the motor is fixed and generate sound. When designing the electric machine, this aspect has to be taken into account from the start since it depends on the harmonic content of the currents that feed the machine, on the shapes of the rotor and stator, and on the interaction of the electric frequencies with the natural mechanical modes of the structure.
To simulate this phenomenon, a coupling between electromagnetic calculations and vibration analysis has to be set-up. Some optimization procedure can also be added in order to reduce the noise.
In what follows, it is shown how Altair HyperWorks suite; specifically FluxTM, OptiStruct®, HyperMesh® and HyperStudy® products have been successfully used to perform a multi-physics optimization for noise reduction in a fuel pump permanent magnet motor.

Weld Certification Director Datasheet
Altair's Weld Certification Director (WCD) is a combination of a base software with customer specific additions and integrated services that allows engineers to accelerate the time taken to identify and analyze the performance of weld lines against mechanical requirements.

Model Mesher Director Datasheet
Altair's Model Mesher Director (MMD) is a fully integrated, user-friendly solution that empowers engineers to import & modify geometry and mesh models with specific mesh criteria automatically with the power of Altair HyperWorks tools. Company’s face the challenge of analyzing ever larger and more complex models.

Model Verification Director Datasheet
Altair's Model Verification Director (MVD) allows engineering analysts to validate CAD model data received from the design teams, automatically identifying potential issues that could slow down the pre-processing stage of the simulation life cycle. The MVD is embedded into HyperWorks pre-processing technology, HyperMesh and integrated into the Assembly Browser.

NVH Director Datasheet
Automotive Noise and Vibration Analysis involves some of the largest and most complex models being used for Finite Element Analysis. Models regularly involve millions of finite elements, with thousands of components and properties, along with the connections between those components.

Virtual Gauge Director Datasheet
Correlation between CAE and tests results is very strategic activity. It boosts the confidence in the development of the product. Altair’s Virtual Gauge Director (VGD) is a combination of customized software and services that enable engineers to extract the results at the exact position of the strain gauge as in the test lab, interpolate the results at an identified CAE location, compute results in the local coordinate system of the gauge, and give a correlation index confidence. The Director can also be used to interpolate stress or strain values at any placement in the model.

Weight Analytics Datasheet
Altair's Weight Analytics (WA) solution manages the entire Weight and Balance (W&B) process empowering engineering and management teams to control and ensure W&B attributes meet program requirements. Deployed as a common weight management tool across the enterprise, WA enables faster and more accurate decision-making with on-demand access to visualize, analyze and predict W&B at any point in time during the entire Product Lifecycle (PLC).

Geomechanics Director Datasheet
Altair's Geomechanics Director (GeoD) allows engineers and scientists, especially in the Rock Mechanics and Geology groups at Oil and Gas companies, to build finite element models from subsurface geology quickly and efficiently.

Impact Simulation Director Datasheet
Altair's Impact Simulation Director (ISD) solutions empower engineers and designers to simulate the impact performance of designs faster to cost-effectively produce higher-quality products. ISD solutions automate the laborious, manual tasks associated with model setup, analysis, post-processing and reporting.Highly tailored to an organization's specific procedures and best practices, Altair's ISD solutions reduce development time and costs while enhancing product robustness and performance.

Automated Reporting Director Datasheet
Altair's Automated Reporting Director (ARD) empowers engineers by removing the non-value add tasks associated with the mechanics of report generation. Engineers can focus entirely on interpreting and understanding simulation results as opposed to manually creating required reports.

OptiStruct for Structural Analysis: Not Just for Optimizations Anymore
Reprint of Engineering.com article on OptiStruct as a structural analysis tool with built-in optimization capabilities

Analysis of Grounding Performances of a Car Body Using FEM Shell Elements
In the automotive domain, the EMC phenomenon of the current return occurs over a wide frequency band due to the fact that the paths followed by the current are very different between the lowest frequencies (a few Hz) and medium frequencies(hundreds of kHz).

Checking Remanence Issues with New Hysteresis Model
Remanence is what is left when all current is removed, and there is still some flux density left in the iron core. This is often the case with a close path for flux density, especially in U or E shape devices. To get rid of this effect, it is sometimes useful to add a so-called remanent airgap. This paper explains what we have incorporated into Flux to model this effect due to hysteresis.

Cogging Torque Computation and Mesh for Non-radial Electrical Motors in Flux®
All electrical motor designers know that the computation of cogging torque is a tricky task, particularly in 3D. Indeed, the amplitude of this variable is almost the same as numerical noise. In most cases, conventional mesh methodology is not sufficient and specific methodology must be used. At CEDRAT, thanks to its experience, the application team has developed methodologies to successfully compute
cogging torque in most cases. This article presents a specific mesh methodology to compute cogging torque for 3D non-radial electrical motors.


Cogging Torque Computation and Meshing for Radial Electrical Motors in Flux®
All electrical motor designers know that the computation of cogging torque is a tricky task in 3D. Indeed, the amplitude of this quantity is almost the same as the numerical noise. In most cases, a classical meshing methodology is not sufficient and specific methodology must be used. At CEDRAT, the application team, thanks to its experience has developed methodologies to successfully compute cogging torque in most of cases. This article presents a specific meshing methodology to compute cogging torque for 2D and 3D radial electrical machine. It begins with some general recommendation concerning the definition of the geometry in order to facilitate the meshing operation. Then, it presents the specific meshing methodology applied to a 2D SPM motor and to a 3D IPM motor.

Comparative Study of Concentrated and Distributed Winding Using Flux®
The paper presents a comparative study of 3-phase permanent-magnet (PM) synchronous machines (PMSM) with concentrated and distributed windings. The purpose of this study is to identify the machine that gives the better electromagnetic performance (torque, efficiency, back electromotive force…). Two PMSM with concentrated and distributed windings having identical output power, stator and rotor outer diameter, airgap, axial length, are designed. Machine performance of the two machines is compared using finite element analysis (Flux 2D).

Eccentricities Faults in a Rotating Machine Analyzed with Flux®
In the present energy efficiency context of electrical machines, diagnosis of rotating machines is increasingly studied. Designers seek to include the on-line, non-invasive diagnosis and typical signatures of the rotating machines faults in the stator winding currents, torque, leakage magnetic field…etc. Among the rotating machine’s faults, 7 to 10% are located in the rotor and some of these faults are eccentricities. These faults generate electromagnetic torque oscillations: electromagnetic forces acting on the stator, particularly the stator winding, which can accelerate wear of its insulation. Friction between the stator and the rotor is not excluded; this can also have an adverse effect on the bearing.
In the literature we often find three types of eccentricities: static, dynamic and mixed. Our Flux 2D/3D/Skew finite element solution can be of considerable help to predict the typical signatures of eccentricities faults and the influence of these defects on the electromagnetic and vibro-acoustic
performances of these machines, a very differentiating feature of the software. The purpose of this article is to show the feasibility of the different eccentricities with Flux 2D/3D/Skew thanks to the
possibilities offered by mechanical sets.


Eccentricities Faults Magnetic Signature of an Induction Machine Determined with Flux®
In the literature we can find two approaches to make diagnosis: Model approach - a specific method for automation engineers. Depending on the mechanism adopted, we can distinguish three branches in this method: monitoring by observers, by analytical redundancy and by parametric estimation. Signal approach - this approach is based on measurable signals data, such as current, torque, stray flux, noise and vibration, temperature. The principle of this method is to look for frequencies unique to the healthy or fault operation. Faults in electrical
rotating machines can induce other phenomena such as noise and vibrations and possibly other faults like friction between the stator and the rotor or accelerated wear of insulations.


FE Steady State Thermal Analysis of Squirrel Cage Induction Motors with Flux®
The thermal analysis of electrical machines and the related fluid dynamic computation, tasks associated with mechanical engineering disciplines, seem to interest electrical engineers less than electromagnetic analysis. But, with increasing requirements to fully exploit new designs and materials, it has more or less become compulsory to analyze the thermal behavior of electrical machines, to the same degree as electromagnetic design.

Finite Elements Method Modeling of Contactless Energy Transfer Systems
Contactless energy transfer (CET) systems are used in many industrial sectors. These include conveyors, trolleys, storage and retrieval units, baggage handling, battery charging stations, mobile phones and medical implants. The energy transfer model is quite similar to a conventional transformer, except for the weak coupling between the primary and secondary windings and partial or non-existent ferromagnetic closing paths. Inductive coupling is commonly used in a range from a few mW to a few hundred kW.



How to Efficiently Design Power Transformers
Nowadays Power Transformers need to optimize their efficiency to make sure a minimum amount of losses are generated from the various physical phenomena. Flux Finite Element studies allow transformer designers to accurately analyze the different losses (Joule losses, iron losses, stray losses) to enhance the performance of their transformers. A few steady-state and transient tests permit determining the electrical and mechanical constraints that the power transformer will have to endure in its life. In addition, thermal studies can complete these analyses to detect and prevent hot spots on the tank or in the windings.

Induction Heating and Forced Cooling Analysis with Flux®
Principle of induction heating and forced cooling (shower): induction heating is the process of heating an electrically conducting object without contact. The flowing of the current through the coil (see Fig.1) generates an alternating magnetic field. This field induces current in the electric conductor (eddy current). The repartition of eddy current depends on the shape of the electric conductor, the frequency, and physical properties of the material used in the electric
conductor. In addition to this, the high frequency used in induction heating applications gives rise to a phenomenon called skin effect: all the current is concentrated only on the boundaries.


Regulate Current with User Subroutine Using Groovy Language in Flux®
For Switched Reluctance Motor, a specific command of current is often used with a chopper in order to decrease the current
ripple or hysteresis band. We propose to see in this example (see Figure 1) how to implement such a command in Flux using
groovy language.

Study of Mounted Surface Permanent Magnet Synchronous Machine Using Flux® Skew
Requirements: rotating electrical machine designers want high-reliability, minimum power losses, maximum power, maximum torque and low mechanical resonance vibration and noise. To meet the needs of electrical machine designers, CEDRAT started developing tools that take Skew into account in 2003. Several improvements have been made to this tool. Skew is usually accounted for by sub-dividing the active length of the machine into several 2D slices. In the latest Skew version of Flux the post processing is directly a full 3D post-processing.

Taking Demagnetization into Account in Permanent Magnets Using Flux®
Materials can be classified according to their magnetic property into two main categories:
Soft magnetic materials: which exhibit magnetic properties with the presence of external excitation. Hard magnetic materials: exhibit magnetic properties in the absence of magnetic excitation. Permanent magnets are part of this family.


Tunnel Magnetoresistance (TMR) Angle Sensor Simulation Results
The article presents the main results of magnetostatic 3D simulation using CEDRAT Flux software especially for new TMR angle sensor applications. Such magnetic sensors are deployed today in automotive electronics, as well as in many new industrial, consumer-product, medical, avionics, defence and other applications. Under Flux 3D, several effects of the influence of magnet geometry parameters and mechanical tolerances of sensor positioning were investigated, such as airgaps and tilts effects. The results include optimum solutions useful for TMR, as well as for a wide range of other angle sensor types and applications.

Using CEDRAT’s Tool to Review Thermal Solutions
Nowadays, it is more and more difficult to design electrotechnique devices without considering thermal stress. In more and more applications (electric vehicles, electric aircraft, etc.) there is a need to reduce weight and cost, increase efficiency, whilst maintaining security. One possibility is to increase current for the same device, and therefore how to draw away the heat. This is why conventional approximations
need to be cross-checked with new tools. These new tools have to be quick and precise in order to run parametric and even optimisation analyses. Of course, thermal analysis is already available in the Flux suite for induction heating, induction hardening, forging, etc. Dedicated applications have been created to couple magnetic AC steady state to thermal transient analysis, for instance. What is new is easier
and more effective coupling any type of magnetic application to thermal analysis. This article reviews what thermal analysis is, when the different tools were created, and looks at the latest advances in thermal analysis.



Speeding up Altair OptiStruct* Simulations with the Intel® SSD Data Center Family for PCIe*
Altair OptiStruct* provides engineers and designers with a unified solution from concept to final design by leveraging advanced analysis capabilities and novel, optimization-driven simulation. In this process, the simulation time for one optimization iteration is a critical consideration, since it affects the computational speed and scalability of the entire design process.


Less Interior Squeak and Rattle Noise Using a Simulation Driven Design Approach
In the development of new vehicles, the PSA Group aimed to detect Squeak and Rattle (S&R) problems before availability of physical testing. This led to a collaboration between PSA’s method development engineering team and Altair’s domain experts.

真のフロントローディングを実現するCAEツールsolidThinking Inspire
『設計者CAE』、『フロントローディング』、どちらもすでに10年以上前から提唱されている言葉である。そして,3次元CADツールには、解析機能を持つCAEのモジュールが組み込まれてきており、環境も整えられつつある。では、実際に、設計者はそれらを使用しているだろうか?

White Paper: How to Digitalize Effectively for IoT
Internet of Things (IoT) is starting to mature and organisations across many sectors are facing the challenges of scaling up from small, trial deployments and proof of concepts into mainstream, high volume consumer deployments.

[AOP] 慶応義塾大学 - 延性破壊条件を求めるための簡易試験片形状の検討
延性破壊条件を求めるための簡易試験片形状の検討 - 慶応義塾大学 / 田原孝浩、大宮正毅 [2017.3]

OptiStruct is 17x faster with the latest Dell Precision Workstation
The reduction of run times up to 17X is a direct result of more powerful hardware and the more advanced algorithms in Altair’s latest software releases.

[AOP] 群馬大学 - 自動車用の斜面を有する吸音二重壁構造の減衰応答のFEM・MSKE 解析
自動車用の斜面を有する吸音二重壁構造の減衰応答の
FEM・MSKE 解析 - 長谷部将人、佐藤雄平(群馬大学院)/ 山口誉夫、丸山真一(群馬大学)/ 黒沢良夫(帝京大学) [2016.12]

[AOP] 広島大学 - トポロジー最適化と3Dプリンタを用いたポーラス材料設計に関する研究
トポロジー最適化と3Dプリンタを用いたポーラス材料設計に関する研究 - 広島大学 大学院工学研究院 機械システム・応用力学部門
竹澤晃弘 [2016.12]

[AOP] 広島大学 - トポロジー最適化と金属3Dプリンタを用いたポーラス材料の開発
トポロジー最適化と金属3Dプリンタを用いたポーラス材料の開発 - 広島大学 大学院工学研究院 機械システム・応用力学部門 竹澤晃弘 [2016.12]

[AOP] 信州大学 - 構造色の有限要素解析 ~ルリビタキの羽毛繊維の構造色と入射角度依存性~
構造色の有限要素解析 ~ルリビタキの羽毛繊維の構造色と入射角度依存性~ - 藤井 雅留太,信州大学 工学部 環境機能工学科 [2016.12]

[AOP] 大阪府立大学 - 倒立振子型車両と操縦者の3次元連成モデルを用いた旋回運動解析
倒立振子型車両と操縦者の3次元連成モデルを用いた旋回運動解析 - 大阪府立大学 / 岡本 晃和、中川 智皓、新谷 篤彦、伊藤 智博 [2016.12]

[AOP] 福岡大学 - Development and Optimal Design of a Telescopic Boom Lift for Nursing Care Using a Multibody Dynamics Approach
Development and Optimal Design of a Telescopic Boom Lift for Nursing Care Using a Multibody Dynamics Approach - 福岡大学 / Yoshiko Yamaguchi, Makoto Iwamura, Hiroyuki Fujishima, Ittou Tanaka [2016.11]

[AOP] 福岡大学 - マルチボディダイナミクスによるテレスコピックブーム型介護リフトの開発と最適設計
マルチボディダイナミクスによるテレスコピックブーム型介護リフトの開発と最適設計 - 福岡大学 / 田中 一等、山口 喜子、藤嶋 寛幸、岩村 誠人 [2016.11]

[AOP] 名古屋工業大学 - 三角孔押付による皮膚表層から䛾弾性率分布推定䛾改良に関する研究
三角孔押付による皮膚表層から䛾弾性率分布推定䛾改良に関する研究 - 名古屋工業大学 / 川上 大貴、山口 和宏、杉田 修啓、松本 健郎 [2016.11]

[AOP] 金沢工業大学 - Influence of Frame Stiffness on Handling Stability in Solar Vehicle
Influence of Frame Stiffness on Handling Stability in Solar Vehicle - 金沢工業大学 / Shota Uchiyama, Masahiro Seto, Masashi Yamabe (Department of Mechanical Engineering, Kanazawa Institute of Technology) / Hiroaki Hoshino (Altair Engineering Ltd.) [2016.11]

[AOP] 横浜国立大学 - Far-Field Estimation Method by Simple Near-Field Measurement for Electrically Long Array Antenna
Far-Field Estimation Method by Simple Near-Field Measurement for Electrically Long Array Antenna - 横浜国立大学 / Yoshiki Sugimoto, Student Member, IEEE, Hiroyuki Arai, Fellow, IEEE, Toshiyuki Maruyama, Masahiko Nasuno,
Masanobu Hirose, and Satoru Kurokawa [2016.11]

[AOP] 横浜国立大学 - Adjacent Point Thinning Sampling for Cylindrical Far-Field Estimation Method
Adjacent Point Thinning Sampling for Cylindrical Far-Field Estimation Method - 横浜国立大学 / Yoshiki Sugimoto, Hiroyuki Arai [2016.11]

Platform Support(稼働環境)- HyperWorks 14.0.120/220
HyperWorks 14.0.120/220(14.0.220 solver packageを含む)がサポートするプラットフォーム、OS、プロセッサー等一覧。

Numerical Wave Tank Analysis of Wave Run-Up On a Truncated Vertical Cylinder
J. Kin, S.Cosgrove, R. Jaiman, and J. O’Sullivan.

VIV Prediction of a Truss Spar Pull-Tube Array Using CFD
Y. Constantinides, S. Holmes, and W. Yu

Dynamic Analysis of Riser Release and Lowering
S. Atluri, N. Liu, A. Sablok, and T. Weaver

Vortex Induced Vibration Analysis of a Complex Subsea Jumper
S. Holmes, and Y. Constantinides

[AOP] 京都工芸繊維大学 - 血液循環系における血管壁と血液との相互作用に関する研究
血液循環系における血管壁と血液との相互作用に関する研究 - 京都工芸繊維大学 / 川口美沙、福井智宏、森西晃嗣 [2016.10]

[AOP]岐阜工業高等専門学校 - 大気圧マイクロプラズマジェットの特性に及ぼす同軸二重管構造の効果
大気圧マイクロプラズマジェットの特性に及ぼす同軸二重管構造の効果/Effect of Double Coaxial Pipe Structure on Characteristics of Atmospheric Pressure Micro Plasma Jet - 野寺 祐生(岐阜高専専攻科)、石丸 和博(岐阜高専)/Yuki NODERA and Kazuhiro ISHIMARU
                   
「日本機械学会東海支部第65期総会・講演会」講演資料 - 2016.07

[AOP]大阪大学 - シェル固有ひずみ局所熱変形解析における高次積分の計算精度に関する研究
シェル固有ひずみ局所熱変形解析における高次積分の計算精度に関する研究 - 大阪大学船舶海洋工学部門 大沢直樹,Hector Ruiz,新谷勇太,村川英一 [2016.08]

Design-Optimization of a Curved Layered Composite Panel Using Efficient Laminate Parameterization
In this paper, presented at the 2016 SAMPE Long Beach Conference, an aircraft door surround model is optimized with respect to the objectives and constraints typical for this type of component using HyperStudy and ESAComp.

[AOP]鳥取大 - 脊髄硬膜の動的二軸引張試験方法の開発
脊髄硬膜の動的二軸引張試験方法の開発/Development of Dynamic Biaxial Stretching Test Method of Spinal Dura Mater - 曽根 悠太(鳥取大院)、田村 篤敬(鳥取大)、川口 佑樹(鳥取大)、小出 隆夫(鳥取大) [2016.07]

[AOP]長崎総合科学大学 - A Study on the Structural Safety of Large Container Ships
Nagasaki Institute of Applied Science [2016.06]

[AOP] 長崎大学 - A Printed Inverted-F Antenna for Circular Polarization
A Printed Inverted-F Antenna for Circular Polarization - 長崎大学 / Takafumi Fujimoto, Takuya Yoshida [2016.6]

Brake Noise Prediction Using Altair Multi-body Simulation
The level of noise transmitted to the passengers of a vehicle can drastically impact a passenger’s comfort. Brake noise will give the customer an impression of poor product quality and can thus damage the quality image of the company. Within the automotive industry,
the study of mode coupling instability by the use of FEM and modal complex analysis is widespread to reduce this phenomenon.


3D プリンターの能力を最大限に引き出すAltair のトポロジー最適化テクノロジー
大量生産に向かないことや使用できる材料の種類に制限があることなどの問題があるとはいえ、型を作成する必要がなく、従来の製造手法では作成することができなかった複雑な構造物を製造することができる3Dプリンターが使用されることを最初から想定し、その特性を最大限に活用することができる設計手法が必要となる。そのような設計手法の一つとしてのトポロジー最適化についての論文。(「機械設計 5月号」第60巻 第7号掲載)

Design and optimization of a high performance C-Class catamaran with HyperWorks
Reprint of the article published on composite solutions magazine 2/2016.

Benchmark of HyperStudy Optimization Algorithms
The objective of this paper is to assess several optimization algorithms in HyperStudy for their effectiveness and efficiency. The following sections of this paper present an overview of the optimization algorithms frequently used in HyperStudy. This is followed by benchmarking of both single objective and multi-objective optimization problems, respectively.

HyperXtrude 2015による押出成形シミュレーション
ユーザビリティを大幅に向上させることに焦点を当て、ダイス設計者、現場の生産技術の専門家およびエンジニアが、金型の設計を簡単に検証することを可能にするHyperXtrudeの紹介。(軽金属 第65巻11号)

[AOP]東京大学 - 人工衛星用のベアリングの有限要素法解析
人工衛星用のベアリングの有限要素法解析 / Investigation of the vibration behavior of the rolling bearing unit for space equipment by finite element method - 東京大学 - Academic Open Program, [2015.12]


[AOP]信州大学 - 構造色の有限要素解析 ~ルリビタキの羽毛繊維の構造色と光吸収の影響~
ルリビタキはスズメ目の小鳥であり、雄の羽は幼体からおよそ2年かけて色が変化し、成体になると美しい青い羽となる。このような羽衣熟成遅延と呼ばれるルリビタキの羽の繊維は、ケラチンをベースとした繊維の中に、無数の微細な空気孔と比較的大きい空気孔で構成される構造となっており、いわゆる構造色であると考えられている。 - 信州大学工学部 藤井 雅留太 [2015.11]

Slotted Waveguide Array
The slotted waveguide array is a popular choice for use in radar systems due to its mechanical robustness, compactness and ability to handle
high power levels.

Slotted Waveguide Array
The slotted waveguide array is a popular choice for use in radar systems due to its mechanical robustness, compactness and ability to handle
high power levels.

Printed Ka-band Reflectarrays with Offset Feed
Printed reflectarrays combine the advantages of parabolic reflector antennas with microstrip arrays, yielding high-gain, low-profile, low-cost antennas with simpler feeds that are easy to fabricate. This white paper demonstrates how FEKO can be used to model a printed reflectarray and its feed.

[AOP]広島大学 - トポロジー最適化と3Dプリンタを用いたポーラス材料設計に関する研究
トポロジー最適化でポーラス材料の内部構造を設計し、それを積層造形技術で忠実に造形して、最適な性能を持つポーラス材料を実現するという取り組みの詳細と、実例として、金属積層造形を用いた高熱伝道材料・高剛性材料の開発、マルチマテリアル樹脂積層造形を用いた熱収縮材料の開発についての紹介 - 広島大学大学院高額研究院 機械システム・応用力学部門 準教授 竹澤晃弘 [2015.11]

Benchmark Study: Optimizing High Fidelity Crash & Safety Simulation Performance
Cray, Intel and Altair have collaborated to analyze crash and safety simulation performance that provides engineers the power, speed and accuracy needed for their design analysis.

FEKO Integrated in HyperWorks 14.0
Altair’s computer-aided engineering (CAE) simulation software platform for simulation-driven innovation is Hyper- Works, which includes modeling, visualization, analysis and optimization technologies and solutions for structural, impact, electromagnetics, thermal, fluid, systems and manufacturing applications. The electromagnetics solver suite in HyperWorks is FEKO, a comprehensive electromagnetic analysis software used to solve a broad range of electromagnetic problems. It includes a set of hybridized solvers, giving the possibility to combine methods to solve complex and electrically large problems, with all solvers included in the same package.

[AOP]名古屋工業大学 - 押込試験によるアフリカツメガエル胚力学特性計測を目指した有限要素解析
山口和宏(名工大)、小平亜侑(名工大)、田村篤敬(鳥取大)、杉田修啓(名工大)、松本健郎(名工大) - 日本機会学界東海学生界第46回学生員卒業研究発表講演会講演前刷集(2015.03.12)掲載

[AOP]金沢工業大学 - ソーラーカーにおけるフレーム剛性が操縦安定性に及ぼす影響/Influence of Frame Stiffness on Handling Stability in Solar Vehicle
本研究では、マルチボディダイナミクスと呼ばれる解析手法を用いることでフレーム合成を変化させた車両運動解析を行うことができ、高精度のシミュレーションが実現できるようになり、時間や費用の削減をすることが可能である。 - 金沢工業大学/Kanazawa Institute of Technology 内山翔太、瀬戸雅宏、山部昌 ― 第24回交通・物流部門大会(TRANSLOG2015) [2015.10]

Electromagnetics in Electronics
Technology advancement in the electronic industry is unyielding, but new trends will build on RF communications to drive new product functionality. Some examples include the Internet of Things (IoT), 5G mobile networks and automation/smart technology.

Electromagnetic Design in the Electronic Industry
Technology advancement in the electronic industry is unyielding, but new trends will build on RF communications to drive new product functionality. Some examples include the Internet of Things (IoT), 5G mobile networks and automation/smart technology.

Intel Solution Brief: Altair and Simulation-Driven Design
Altair and Intel offer a simple, cost-effective on-ramp to a complete simulation-driven design platform. This paper describes joint offerings including HPC and CAE in the public cloud.

[AOP]金沢大学 - 小型医療機器の変形ストレス評価
医師の負担を減らすことを目的に、脳腫瘍摘出手術を行うための新しい医療器具の開発を目指した。 - 金沢大学 田中克幸、渡辺哲陽、米山猛 [2015.09]

Intel Solution Brief: Maximize Performance and Scalability with RADIOSS on Intel® Xeon®
This paper summarizes the findings of a benchmark project to evaluate the performance and scalability of RADIOSS on Intel® Xeon® Processor E7 v2 family-based platforms.

Seat Design for Crash in the Cloud - NAFEMS World Congress 2015
The benefit of design exploration and optimization is understood and accepted by engineers but the required intensive computational resources have been a challenge for their adoption into the design process. The HyperWorks Unlimited (HWUL) appliance provides an effective solution to these challenges as it seamlessly connects all the necessary tools together in the cloud. The aim of this study is to showcase the benefits of HWUL on an optimization driven design of a complex system. For this purpose an automotive seat design for
crash loadcases is selected.

Fluid - Structure Interaction Analysis and Optimization of an Automotive Component
This paper discusses the behavior of a flexible flap at the rear end of a generic car model under
aerodynamic loads. A strong bidirectional coupling between the flap’s deflection and the flow
field exists which requires this system to be simulated in a coupled fluid-structure manner.

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