Company:

Yamaha Motor Co., Ltd.

Products:

scFLOW | SC/Tetra

Industries:

MSC Cradle CFD helps Yamaha Motor be competitive in MotoGP Design improvements of 0.01 second sought

 
 
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Company:

Tokai University

Products:

scFLOW | SC/Tetra

Industries:

Students take the lead in simulating solar car aerodynamics

 
 
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Company:

NAKASHIMA PROPELLER CO., LTD.

Products:

scFLOW | SC/Tetra

Industries:

Using fluid analysis capabilities to improve marine propeller efficiency and stay ahead of international competition

 
 
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Company:

BoostHEAT

Products:

scFLOW | SC/Tetra

Industries:

Using scFLOW BoostHEAT develops the world’s most efficient boiler

 
 
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Company:

Morinaga Milk Industry Co., Ltd.

Products:

scFLOW | SC/Tetra

Industries:

CFD application for dairy products:scientific exploration for great tastes

 
 
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Company:

FUNAI ELECTRIC CO., LTD.

Products:

scFLOW | SC/Tetra

Industries:

Thermal analysis tool enables low-cost, fast-to-market product development and manufacturing

 
 
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Company:

Waseda University

Products:

scFLOW | SC/Tetra

Industries:

Using CFD to predict and evaluate human body thermal comfort

 
 
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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:

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
Noise Pollution

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:

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:

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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