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E-motor Design using Multiphysics Optimization
Today, an e-motor cannot be developed just by looking at the motor as an isolated unit; tight requirements concerning the integration into both the complete electric or hybrid drivetrain system and perceived quality must be met. Multi-disciplinary and multiphysics optimization methodologies make it possible to design an e-motor for multiple, completely different design requirements simultaneously, thus avoiding a serial development strategy, where a larger number of design iterations are necessary to fulfill all requirements and unfavorable design compromises need to be accepted.

The project described in this paper is focused on multiphysics design of an e-motor for Porsche AG. Altair’s simulation-driven approach supports the development of e-motors using a series of optimization intensive phases building on each other. This technical paper offers insights on how the advanced drivetrain development team at Porsche AG, together with Altair, has approached the challenge of improving the total design balance in e-motor development.

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.

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.

An Efficient Workflow for Composite Design & Analysis Using LAP, CoDA & Laminate Tools with HyperMesh
The task is to define optimal composite material and laminate property data, using HyperMesh in combination with Anaglyph’s composites design and analysis software tools.

Manufacturing Chain Modeling with Virfac® Using HyperMesh
Running simulations before production is often a credo for many industries using manufacturing processes like welding, machining, heat treatment, etc. Virfac®, which stands for Virtual Factory, is the perfect tool to predict, anticipate and optimize the thermal & mechanical behavior of the workpiece along the entire manufacturing chain. Please see hereafter a three-step chaining process, using a HyperMesh mesh, starting with a “T-joint” welding, followed by a machining process, and finally ends with a heat treatment.

Optimizing Strain Gauge Placement with LW Finder & HyperMesh
This white paper demonstrates how to find the optimal locations to place strain gauges on a casted bracket in order to accurately measure loads.

[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
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] 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] 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]

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。

A Design-Validation-Production Workflow for Aerospace Additive Manufacturing
Additive manufacturing coupled with topology optimization allows the design-and-analysis and manufacturing iterations to be reduced significantly, or even eliminated. To ensure that the part will perform as simulated, a mid-stage validation is conducted on a standardized part before creating the final products.

[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]

Global-Local Analysis Using StressCheck, HyperMesh, HyperView and OptiStruct
This whitepaper describes the workflow for combining global and local analysis in structural development using StressCheck in combination with HyperWorks.

[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]

[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]

[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]石巻専修大学 - FSAEルールに基づいた学生フォーミュラカーのフレーム作り
石巻専修大学大学院 理工学研究科 奥津勝太

Computer Simulation's Role in Advancing Composite Aircraft Structures
Reprint of an article published on the December 2014 issue of Aerospace & Defense Technology magazine

[AOP]東京大学 - 転てつ付属装置の磨耗現象解明のための有限要素法解析
転てつ付属装置の磨耗現象解明のための有限要素法解析 / Finite Element Analysis for Wearing Mechanism on Attachment Device of Railroad Switch - 東京大学 / University of Tokyo [15.02]

[AOP]山梨大学 - 弾性平板型水中推進機構の解析におけるSPH法の有効性検証
弾性平板型水中推進機構の解析におけるSPH法の有効性検証/Verification of SPH for analysis of aquatic propulsion mechanism using elastic plate - 山梨大学/Yamanashi University [15.02]

Optimizing Cooling Passages in Turbine Blades
Turbine blades have internal passages that provide cooling during operation in a high
temperature engine. The design of the cooling passages is critical to achieve near uniform
temperature of the blade during operation. The temperature of the blade is dependent on the thermal properties of the blade material as well as the fluid dynamics of the air circulating in the cooling passages. Computational optimization methods have successfully been applied to design lighter and more efficient structures for many aerospace structures. An extension of these techniques is now applied to guiding the thermal design of a turbine blade by designing the optimal cooling passage layout. Optimization methods will be applied to determine the optimum pattern of the cooling passages and then to optimize the size of the individual cooling passages. The goal is to produce a more thermally efficient turbine blade design that will produce blades with longer lives and better performance.

Hawk T Mk2 - Arrestor Barrier (BAN MK2) Engagement Analysis
As the UK Ministry of Defence (MoD) Design Authority for Aircraft Arrestor Barrier Nets, AmSafe products are used to stop aircraft from over-running the end of the runway. The British Arrestor Net (BAN) Mk2 is suspended across the runway over-run area by two electrically driven stanchions and raised or lowered by remote control from the Air Traffic Control tower.

This paper describes the process and results of a FE analysis of the engagement of the Hawk T Mk2 aircraft into a Type A Barrier (BAN Mk2). The analysis was performed using RADIOSS, an advanced non-linear explicit Finite Element solver.

A New Approach to Optimizing the Clean Side Air Duct Using CFD Techniques
An integrated approach to CFD design optimization is proposed. It consists of taking an initial CAD design, meshing it using HyperMesh, analysing it using Star-CD, parameterising its key features using HyperMorph, and then shape optimizing it using HyperStudy. This approach has been applied here to the shape optimization of the compressor inlet duct of a turbo system.

A Holistic Virtual Design Process Applied to the Development of an Innovative Child Seat Concept
There is a need to minimise product development costs and provide efficient design solutions to maintain competitiveness, so increasingly companies in the Child Restraint System (CRS) industry are turning to Computer Aided Engineering (CAE) to enhance the design and development for their products. Graco has worked with Altair Engineering to develop a group 1 CRS using an advanced CAE driven design process. The design process introduces a number of key phases in the design cycle each of which are positioned to maximize the efficiency of the structure and reduce or remove the cost involved in a traditional, iterative ‘test it and see’ approach.

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