Company:

Vellore Institute of Technology

Products:

Adams
Adams Car

Industries:

汽车

Improving Ride and Handling of Formula Student Car Using Adams Car

Challenge:

Zuura Formula Racing is a student team from the Vellore Institute of Technology in Chennai, India that participates regularly in the Formula SAE student competition organized across the globe by SAE Interna-tional.

For participating teams, the task at hand is to develop a small formula-style race car. Each student team designs, builds and tests a prototype based on a series of rules, aimed at ensuring on-track safety and promoting clever problem solving. The prototype is evaluated for its potential as a production item.

During the course of this project, one of the focus areas for the Zuura Formula Racing team was to ensure good suspension for their vehicle. To achieve this, they needed to ensure that the tires were as perpendicu-lar to the ground as possible to achieve maximum traction. The front geometry had to be designed such that it had a negative camber in jounce. This was an important factor in keeping the wheels perpendicular to the ground, and also to resist body roll.

The main target before the vehicle dynamics simulation engineer at Zuura Formula Racing was to improve the ride and handling of the vehicle by reducing yaw, pitch and roll rates.

Solution:

The Zuura Formula Racing team used the Adams Car software from MSC Software. Adams Car allows students to design and simulate their FSAE vehicles to maximize their vehicle performance. With Adams Car, FSAE teams can quickly build and test their functional virtual prototypes of complete vehicles and vehicle subsystems. FSAE engineering teams can exercise their vehicle designs under various road condi-tions, performing the same tests they normally run in a test lab or on a test track, but in a fraction of time.


 
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Company:

Hyundai Motor Company

Products:

Actran Acoustics

Industries:

汽车

Actran Helps Reduce Time to Optimize Design of Active Pedestrian Alerting System by 50%

Challenge:

Save time in finding the best Active Pedestrian Alerting System design without prototype

Solution:

Apply Actran to study complete speaker driver and its interactions with its acoustic environment


 
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Company:

Opel

Products:

Adams
Adams Car

Industries:

汽车

Adams Simulation Reduces Full Vehicle Test Time by 30%

Challenge:

To reduce the vehicle test time for fatigue/durability evaluation

Solution:

Apply Adams Car with the Virtual Proving Ground for Road Loads Generation


 
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Company:

WayRay

Products:

scSTREAM

Industries:

汽车

Applying MSC Cradle CFD to WayRay's Holographic AR Navigation Cooling System Development

Overview:

Swiss startup, WayRay is best known for developing the first-ever holographic AR navigation system for cars. Dr. Maksim Aleksandrov, CAE Engineer at WayRay, sheds light on how the R&D team has applied scSTREAM to the development of the holographic navigation cooling system.

Results Validation:

In the future the WayRay team plan to incorporate a more complete picture of structural loads, expansion and stresses by exporting temperature variations to strength & structural analysis tools. They also plan to conduct thermal calculations of optical systems as well, given that the MSC Cradle CFD system can take into account lens reflection and refraction due to heat radiation.

"We also plan to conduct thermal calculations of optical systems as well, given that the MSC Cradle CFDsystem can take into account lens reflection and refraction due to heat radiation. Aerodynamic noise analysis is our other challenge," - (Mr. Maksim Aleksandrov).

WayRay chose scSTREAM for thermo-fluid simulation because of its high operability, accuracy and comprehensible GUI. WayRay engineers are satisfied with the capability of scSTREAM and eager to continue to apply the CFD tools to produce excellent computational results and achieve more effective development.

Benefits:

"The CFD analysis from MSC Cradle enables WayRay to shorten the design and prototyping process, allowing engineers to visualize and simulate design variations previously unavailable for physical measurement and evaluation," - (Mr. Maksim Aleksandrov).


 
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Company:

Vrije Universiteit Brussel

Products:

Adams

Industries:

医疗器械

Simulation Reality Contest Winner - Vrije Universiteit Brussel

Overview:

The medical industry is moving in a direction towards robotics to help patients in the rehabilitation process. Gait training (over ground or on a treadmill) has become an essential part of rehabilitation therapy in patients suffering from gait impairment caused by disorders such as stroke, spinal cord injury, and multiple sclerosis. A focus on the human in collaboration with a robot puts emphasis on the adaptability, safety, and task specificity of robotic assistance. Hence, in the development of novel rehabilitation prototypes engineers face the challenge of combining suitable design concepts, high performance actuator technologies, and dedicated control strategies in view of improved physical human-robot interaction (HRI). The improvements should lead to a better insight into effectiveness of robot-assisted rehabilitation and ultimately, lead to therapies that are more effective. One of the approaches to facilitate the design process, in terms of development time, functional and safety evaluation, is using computational multibody simulations. Nowadays, multibody modeling and simulations are recognizable as an efficient and relative inexpensive evaluation approach. Due to the continuously increasing complexity of the wearable robots, almost any study conducted in the field of robotics can profit from a simulation of the system behavior, foregoing experiments on a real platform. Moreover, an advantage of using multibody modeling represented by the possibility to predict various outputs that are difficult, dangerous, or even impossible to reproduce in the real experimental setup.

Results Validation:

The 3D model of a novel CORBYS rehabilitation device has been developed and co-simulated with the human body using object-oriented multibody dynamics software, Adams.

Adams gave researchers the additional insight they needed on the push-pull actuation system. The simulation results show that the transmission efficiency of the PPC is dependent on nonlinear friction between the tendon and the sheath. While the friction was influenced by an attached load to the cable and the curvature of the PPC. The simulation results had an impact in defining the actuation system parameters and appropriate control implementation design. These insights helped them present a working concept, which will open doors for further exploration for research and development.

According to modeling experience in Adams, the team confirm that multibody simulation tools are very effective in cases when the main design, technical, and functional characteristics of the real system are accurately reproduced in computational model. In order to obtain a useful functional model, users need a good understanding of the governing mechanics describing a physical system to make relevant choices between numerous simulation platforms.

Benefits:
  • Studied human-robot interaction forces during walking exercise
  • Simulation helped make sure the working prototype met the safety requirements for patients
  • Evaluated the push-pull cable actuation system followed by control strategies optimization

 
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Company:

Parker Hannifin

Products:

Marc

Industries:

能源

MSC's Marc Helps Ensure Safe Operation of Subsea Oil Drilling

Overview:

In designing heavy machinery, such as those on cranes or oil rigs, small plastic components or rubber seals can be vital to the integrity of those large structures. Stephen Armstrong an FEA Analyst/New Product Development Engineer and his team at Parker Hannifin Corporation work on designing just these types of parts.

Parker Hannifin is a trusted leader in motion and control technologies. Stephen’s team’s main area of focus is on seals that are comprised of hyperelastic materials such as rubber, polyurethane, and other compounds. These seals are used in a variety of applications in heavy machinery, medical devices, military and aerospace industries.

Engineers working with these materials focus on nonlinear analysis in most of their projects, because these materials mainly exhibit non-linear behavior. MSC’s Marc was their tool of choice for simulating such behaviors.

Benefits:

Enhance the seal design and reduced physical testing


 
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Company:

Renault

Products:

Actran Acoustics

Industries:

汽车

MSC Software Helps Renault Reduce Pass-by Noise

Overview:

In recent years, there has been a global initiative to reduce traffic noise and improve comfort in automotive vehicles. Engineers have to meet stringent government regulations while still improving the passengers’ experience. One requirement involves a measurement procedure commonly referred to as Pass-by Noise. The maximum allowed sound level for Pass-by Noise has recently been reduced, now representing a new constraint on the design of commercial vehicles. Countermeasures to reduce noise emissions consist in moderating the different acoustic sources by either acting on the noise generating mechanisms or managing the noise propagation. Adding sound absorbing materials or modifying parts of the vehicle geometry are solutions that engineers are investigating to solve this problem. With its wide range of vehicles, the Renault team has to anticipate the evolution of Pass-by noise regulations and design vehicles according to future constraints. Renault decided to extend its acoustic simulation capabilities and model the exterior acoustic propagation using Actran, a product of FFT, an MSC Software Company. With Actran, Renault was able to improve their designs and reduce development costs by considering the vehicle acoustics early in the design phase.

Results Validation:

When studying Pass-by noise, it is essential to make sure that the numerical simulation is accurate. The absolute sound level recorded during the test determines if the vehicle will pass or if it will be rejected. “We had some measurements from physical testing available when we started the validation,” Philippe explains.

“When we started the project we were quite far, we needed to analyze the results and understand the problems in the way we were modelling. Now we are quite happy with the results. We went quite fast in improving the accuracy.” Following this successful validation phase, the methodology is now used daily by Renault engineers to optimize the technical definition of the vehicle to be sure that absorbing materials will be placed exactly where needed. “Compared to the initial target, we achieved much better performances. We started from scratch for this exterior acoustic problem, and what we were able to achieve in just a couple of years in this project is quite impressive to me” concludes Philippe.

Benefits:

Reducing development costs by integrating acoustic constraints at early stages through simulation.


 
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Company:

沃尔沃汽车公司

Products:

Digimat

Industries:

汽车

沃尔沃汽车公司使用Digimat短纤维增强塑料的材料模型

Overview:
随着和Digimat经销商—Dynamore Nordic的深入合作,沃尔沃汽车公司研究了Digimat局部各向异性材料模型处理增强塑料的强大功能。该评估项目带来了很多好处:  使用Digimat模型并考虑注塑过程的局部各向异性,准确预测增强塑料的响应  多种FEA分析的能力:静态与动态失效  用一个独特的多尺寸材料模型可和多种有限元求解器耦合使用的灵活性  对材料进行早期校准
Challenge:
随着和Digimat经销商—Dynamore Nordic的深入合作,沃尔沃汽车公司研究了Digimat局部各向异性材料模型处理增强塑料的强大功能。该评估项目带来了很多好处:  使用Digimat模型并考虑注塑过程的局部各向异性,准确预测增强塑料的响应  多种FEA分析的能力:静态与动态失效  用一个独特的多尺寸材料模型可和多种有限元求解器耦合使用的灵活性  对材料进行早期校准

 
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Company:

Proplast

Products:

Digimat

Industries:

汽车

利用Digimat & Moldex & Marc对使用MuCell(c)的增强塑料零件进行精确建模

Overview:
Proplast启动了一项研究项目,以支持工业领域创新的微发泡塑模工艺评估与微调。该项目已评估和测试了仿真工具,用以在工艺仿真至最终结构验证中支持设计师。 Proplast开发和评估的CAE分析方法论可以准确可靠地模拟塑件的MuCell微发泡塑模工艺、质量、填充形态以及极限机械性能。 Mucell组件流动模拟提供了优化的工艺参数和整体成型质量 (可能的重量减少、体积收缩、缩痕和翘曲),以及气泡结构的局部微观结构描述(微气泡的尺寸密度和分布)。
Challenge:
由于内部空隙均匀分布可以降低残余应力,微发泡塑模工艺可以得到具有优异机械性能的塑料部件。这将更有利于减少薄壁组件的变形。 为了得到这些结果,必须在所有设计工艺中考虑工艺参数,并且必须采用新技术补充传统工具,从而定义一种新的设计方法。

 
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Company:

Medicrea

Products:

Digimat

Industries:

医疗器械

脊柱椎间盘假体的材料设计

Challenge:
脊髓损伤和脊柱椎间盘逐渐恶化是导致背痛和脊柱疾患的主要原因,现今永久性治疗这些疾病的最有效方法是通过外科手术。在不断发展中最具有前途的手术选择之一是使用人工植入体替换病人的天然脊柱椎间盘。 这些人工椎间盘所使用的材料是该项技术发展的一个重要影响因素。人工椎间盘必须由能安全植入人体的材料制成,不会引起过敏反应,同时具有耐磨性且与医学成像(例如MRI)兼容。纤维增强塑料和弹性体因其耐磨损性和增强的机械性能在矫形植入体中的应用中越来越广泛。 设计由这些材料制成的植入体的挑战在于,是否能够充分利用材料性能,而这些性能一般和制造工艺相关。 用纤维增强塑料设计的植入体力学性能在很大程度上取决于组成材料(即纤维和基体)的特性,以及制造最终部件的工艺。

 
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Company:

Stratasys

Products:

Digimat

Industries:

医疗器械

复合材料层合板工具增材制造中翘曲变形的仿真预测

Overview:
25年多以来,Stratasys在增材制造方面一直是决定性的力量和主导者 ,尤其是发明了熔融沉积成型技术(FDM®)。公司的解决方案为客户提供了独一无二的无约束设计和制造柔性,减少了上市时间并降低了开发和制造成本。 在高温(>177℃)、低批量复合材料层合板修复工具,以及中温(<163℃)牺牲模具的快速生成中,FDM®(熔融沉积成型技术)正成为一种技术选择。相对于传统模具和方法,FDM技术在投产准备阶段、模具成本和模具设计、制造和应用的简化方面具有显著的优势,同时使得模具功能性增强和几何复杂度提高。
Challenge:
为了实现增材制造的全部价值,需要利用仿真工具对零件进行预测并减小零件翘曲变形,并在零件打印之前了解制造工艺对设计方案的影响。这种工艺模拟的发展面临着几大挑战: • 材料的逐层沉积期间出现的复杂热力载荷和零件连续冷却。 • 增材制造的多尺度挑战:基于打印路径,微粒沉积的位置会形成特有的微结构,这会使得材料本身产生各项异性行为,最后会影响宏观力学特性。 • 材料沉积的热载荷在邻近微粒间或层间会产生收缩性差异,这会影响到零件最终的精确性。 总的来说,打印工艺的模拟需要考虑材料状态的演变,以便模拟应力的产生和最终应力的松弛。翘曲变形的数值预测需要考虑工艺参数、材料特性和打印模式(零件方位、路径、支撑材料等等)。

 
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Company:

Stratasys

Products:

Digimat

Industries:

Additive Manufacturing

Simulating effects of warpage in an additively manufactured composite layup tool

Overview:

For more than 25 years, Stratasys has been a defining force and dominant player in additive manufacturing – notably inventing the Fused Deposition Modeling (FDM) Technology. The company’s solutions provide customers with unmatched design freedom and manufacturing flexibility – reducing time-to-market and lowering development and manufacturing costs.

FDM® (fused deposition modeling) is becoming the technology of choice for rapid production of high-temperature (> 177 ° C), low-volume, composite lay-up and repair tools, as well as for moderate-temperature (<163 °C) production sacrificial tooling. Relative to traditional tooling materials and methods, FDM offers significant advantages in terms of lead time, tool cost and simplification of tool design, fabrication and use, while enabling increased functionality and geometric complexity.

Benefits:
  • Print it right the first time!
    Iterate designs and parameters through simulation rather than wasting time and materials with iterating through printing
  • Save time & material!
    Anticipate printing issue with simulation (e.g., evaluate the impact of the printing direction and location on results)
  • Minimize warpage in only two steps!
    Thanks to a predeformed geometry
  • Optimize the manufacturing process!
    Quickly explore at virtually zero marginal cost the sensitivity of process parameters on the process quality and part fidelity
  • Access to an easy, efficient and user-friendly GUI!
    Designed to follow the printing workflow and accessible for non FEA experts

 
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Company:

TEN TECH LLC

Products:

MSC Apex
MSC Nastran
MSC One

Industries:

航空

MSC One Provides TEN TECH LLC Access to MSC's Complete CAE Platform

Overview:

MSC Software pioneered many of the technologies that are now relied upon by the Aerospace industry to analyze and predict stress and strain, vibration & dynamics, acoustics, and thermal analysis in their flagship product, MSC Nastran. Similarly, MSC Marc and MSC Adams are highly regarded as industry-leading applications for non-linear simulation and kinematics, respectively.

TEN TECH LLC, a Los Angeles based engineering consulting firm, conducts complex engineering Finite Element Analysis. As subject matter experts in shock, vibration and thermal analysis for the Aerospace & Defense Industry, TEN TECH LLC relies heavily on MSC solutions. The types of products and applications TEN TECH is involved with share a common characteristic: field failure is never an option. To validate these designs, complex multi-physics analyses and high-performance solvers that provide great accuracy are required. TEN TECH LLC being a Small Business, high-end CAE software procurement is always a delicate balancing act as high performance and accuracy comes at a hefty premium. At least it did until now: enter MSC One.

MSC One is an expanded products token system that allows companies to take advantage of the breadth and depth of MSC Software’s simulation portfolio within a flexible token-based licensing system. Offered on an annual subscription basis, MSC One provides efficient implementation and access to a suite of multidisciplinary engineering software tools.

For TEN TECH LLC, the ability to easily access the extensive MSC One product portfolio, including all of MSC’s core products such as MSC Nastran, Adams and Marc, but also Sinda and SC/Tetra for thermal and CFD analysis was an easy choice. Access to such a variety of tools through a “check-in, check-out” token system, allows the team at TEN TECH to solve a multitude of their clients’ vibration, non-linear, thermal and CFD problems for a fraction of the cost typically incurred.

Recently, TEN TECH LLC’s Structural Mechanics Group has been actively involved in the development of telescope structures, providing Finite Element Analysis expertise for the design validation of the telescope structure supporting the Polarization of Background Radiation telescope array experiment (POLARBEAR-2).

Funded by the Simons Foundation, POLARBEAR-2 is an international collaborative effort including 8 countries, and 20 institutions. Based in Chile’s Atacama Desert, the Simons Array, comprised of three polarization of background radiation telescopes, will probe the skies in search of proof of inflation, the hypothetical moment following the Big Bang.

“We heavily relied on MSC Apex and MSC Nastran to perform these complex structural analysis tasks. MSC One made our life much easier than with our traditional workflow” - William Villers, CTO & Director of Engineering at TEN TECH LLC.

Results Validation:

The TEN TECH team was able to quickly mesh and run FEA on a very large and detailed model of a complex assembly, starting from native CAD files. Apex allowed the team to proceed with incremental analyses of subassemblies and build a very large and complex model “right the first time”. With Apex, the engineers shortened their “CAD to FEM to Analysis” time by 25%-30% compared to their traditional workflow process. At the same time, they delivered a high fidelity, reliable model to their client.

MSC Nastran’s high performance was highlighted throughout the entire project: through its ultra-fast iterative solver and GPU-accelerated processing for linear statics, to Automated Component Modal Synthesis (ACMS) and Distributed Memory Parallel (DMP) solver for large dynamics problems, MSC Nastran performed flawlessly and delivered the highly accurate results required to achieve the proper confidence level in the design.

TEN TECH plans to further utilize MSC’s products through MSC One, including Sinda, Adams, and MSC Nastran. The price of MSC One gives the TEN TECH team the financial freedom they need to use MSC Nastran and other products.

Benefits:

Increased productivity by utilizing MSC Apex Fossa to save time during the design process


 
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Company:

斯堪尼亚

Products:

Actran Acoustics
Actran AeroAcoustics
Actran DGM
Actran for Trimmed Body
Actran SNGR
Actran TM
Actran VI
Actran VibroAcoustics

Industries:

汽车

MSC帮助斯堪尼亚公司实现卡车舱室降噪

Overview:
在考虑购买车辆或驾驶车辆时,是否能有愉悦的驾驶体验至关重要;对于购买卡车的公司和卡车驾驶员而言,这也关系到个人健康和生产效率。大多数的卡车驾驶员每天至少要在驾驶室里工作8个小时。据了解,当长期处在充斥着高分贝噪音或者令人不适的声音的工作环境中,驾驶员易过度疲劳,诱发健康问题。因此,对于卡车制造商来说,设计新产品时最关键的是,要通过精心设计,降低驾驶室噪音,使降噪效果远远优于客户要求,从而能为驾驶员提供最优越的驾驶体验。作为世界卡车制造商领导者之一的斯堪尼亚公司生产各类优质卡车,其产品以超高舒适性、出色性能比著称。斯堪尼亚公司的整车声学部致力于通过降低舱室噪音级,提升隔音质量,从而尽可能满足驾驶员对降噪的需求。斯堪尼亚公司通过开展广泛测试,并引入声振模拟等新手段,从而实现对驾驶舱室降噪性能的优化。为此,斯堪尼亚开发团队选择使用Actran软件,来提升他们的设计水平、缩短设计时间。
Challenge:
随着法律法规和客户对新型卡车的设计要求越来越严格,制造商需要研发出新的方法,并形成更加稳固和有效的设计流程。在舱室噪音方面,“斯堪尼亚公司围绕噪音检测和测试开展了大量工作。”整车声学部高级工程师佩尔·奥洛夫·贝里隆德说,“我们打算进行更多的仿真工作。”佩尔·奥洛夫补充道。为了重现物理环境中的声音,斯堪尼亚团队需要了解都有哪些噪音源,并且对各种噪音如何影响舱室噪音级进行判定。“两年多来,多个部门间开展了大量的跨功能仿真模拟项目,从而对舱室噪音形成了完整的概念。”佩尔·奥洛夫说,“我们想通过调整不同噪声源的贡献量达到声学设计的目的。”整车声学部首先需要降低车辆舱室噪音的主要来源。研究发现,其主要噪音源是风噪、动力总成噪音和轮胎滚动噪音。而后,他们判定出了每种噪音源的典型频率。在获取这一重要信息后,佩尔·奥洛夫和其团队接下来就要寻找软件解决方案,即利用软件来预测主噪音源以及对舱室噪声的贡献。

 
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Company:

Scania

Products:

Actran Acoustics
MSC Nastran

Industries:

汽车

MSC Software helps Scania Reduce Cabin Noise in Trucks

Overview:

Having a pleasant driving experience is a key determinant when purchasing or driving a vehicle. For companies buying trucks and for truck drivers, it is also a matter of health and productivity. Most drivers spend more than 8 hours a day in the truck cabin. High noise levels or unpleasant sounds in a working environment are known to cause excessive fatigue and health problems. It is therefore crucial for truck manufacturers to carefully design their new products and shape the cabin noise to go beyond the requirements of their customers, and propose the most enjoyable driving experience possible.

With a wide range of premium trucks, Scania, one of the world’s leading truck manufacturers naturally aims at designing trucks with outstanding comfort and performance. Scania’s Complete Vehicle Acoustic Department is focused on getting their vehicles up to speed with today’s drivers’ expectations by addressing the level and quality of cabin noise in their vehicles. The development for more optimized cabins is supported by extensive testing and the introduction of new methods based on vibro-acoustic simulations. For this endeavor, Scania’s development team chose to use Actran, a product of FFT, an MSC Software Company, to improve their designs and shorten their design cycles.

Results Validation:

Scania aims to increasingly utilize Actran’s simulations results to compare different designs and define the design directions early in the product development cycle, without the need for physical testing. To support this decision-making process, a listening studio was built at Scania. The studio is similar to that of a professional mixing studio. It encompasses a 7.1 surround system for sound and is designed to produce exactly the same listening experience for anyone who is seated in the center of the room. During subjective evaluation sessions, Per-Olof conveys to his fellow colleagues his findings based on his simulations. He combines test and simulation data to replicate the environment of driving an actual truck. This process helps managers to make important decisions, which will affect the design of the cabin. “It is a very different response from management when you can play a sound and they can have this subjective experience,” Per-Olof said. “It’s not really possible to understand from a graph what you will hear in the truck,” he explained.

With the use of Actran in this new simulation process and the subjective evaluations allowed by the listening studio, Scania now has all the tools needed to improve its customer driving experience even further, while having a more efficient design process.

Benefits:

Enhancing the design of the truck to prevent the negative effects of Cabin Noise


 
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