GOALI: Computational Multibody Dynamics: Addressing Modeling and Simulation Limitations in Problems with Friction and Contact
GOALI:计算多体动力学:解决摩擦和接触问题中的建模和仿真限制
基本信息
- 批准号:1362583
- 负责人:
- 金额:$ 37万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-06-01 至 2018-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This Grant Opportunity for Academic Liaison with Industry (GOALI) Program project brings together a research group from the University of Wisconsin-Madison and a team of engineers from Caterpillar in a joint effort that aims at investigating and experimentally validating modeling and numerical solution methods capable of predicting through computer simulation the time evolution of large dynamic systems. The proposed research, development, and validation effort will increase the role that computer simulation plays in investigating processes such as transporting, mixing, and compacting discrete material (powders, grains, gravel, rocks). Although these processes are relevant in a broad spectrum of industries: e.g., manufacturing, construction, farming, food and drug, their investigation through computer modeling and simulation provides limited benefit today unless the problem size and/or duration of the analysis are drastically curtailed, often below practically useful limits. Better understanding the dynamics of large multibody systems is important since after water, discrete media are manipulated in industry the most. Moreover, about 50% of all traded products worldwide are in granular form and their manufacturing, transport, processing, packing and mixing pose challenging problems in which the outcomes of this research is anticipated to provide valuable insights. The granular systems to be investigated have millions to billions of components whose collective behavior is dominated by frictional contact interactions between individual elements. The research effort will concentrate on (1) investigating two classes of solutions methods; i.e., Krylov-subspace and Primal-Dual Interior Point methods, to address current numerical solution limitations that stem from the multiscale aspect of practical applications; (2) investigate augmented Lagrangian formulations to understand whether they can enhance the modeling role that complementarity approaches play in multibody dynamics; and (3) compare two classes of solution methods; i.e., penalty-based and complementarity-based, in terms of accuracy, robustness and scalability in order to compile a factual body of evidence that summarizes the advantages and disadvantages of each approach.
这个学术联络与工业(GOALI)计划项目的赠款机会汇集了威斯康星大学麦迪逊分校的研究小组和卡特彼勒的工程师团队,共同努力,旨在调查和实验验证能够通过计算机模拟预测大型动态系统时间演变的建模和数值求解方法。拟议的研究,开发和验证工作将增加计算机模拟在调查过程中的作用,如运输,混合和压实离散材料(粉末,颗粒,砾石,岩石)。尽管这些过程在广泛的工业中是相关的:例如,制造业、建筑业、农业、食品和药物,通过计算机建模和仿真对它们的研究目前提供的益处有限,除非问题的大小和/或分析的持续时间被大幅缩减,通常低于实际有用的限制。更好地理解大型多体系统的动力学是重要的,因为继水之后,离散介质在工业中被操纵得最多。此外,全球约有50%的贸易产品是颗粒状的,其制造、运输、加工、包装和混合构成了具有挑战性的问题,预计本研究的结果将提供有价值的见解。待研究的颗粒系统具有数百万到数十亿个组件,其集体行为由单个元素之间的摩擦接触相互作用主导。研究工作将集中在(1)调查两类解决方案的方法;即,Krylov子空间和原始对偶内点方法,以解决当前数值解的限制,源于实际应用的多尺度方面;(2)研究增广拉格朗日公式,以了解它们是否可以增强互补方法在多体动力学中的建模作用;(3)比较两类求解方法,即,在准确性、稳健性和可扩展性方面,对基于惩罚和基于互补的两种方法进行比较,以便汇编一套事实证据,总结每种方法的优缺点。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Dan Negrut其他文献
Linear Algebra Considerations for the Multi-Threaded Simulation of Mechanical Systems
- DOI:
10.1023/a:1024515521451 - 发表时间:
2003-08-01 - 期刊:
- 影响因子:2.400
- 作者:
Dan Negrut - 通讯作者:
Dan Negrut
Human-automated vehicle interactions: Voluntary driver intervention in car-following
人机交互车辆:在跟车过程中驾驶员的自愿干预
- DOI:
10.1016/j.trc.2024.104969 - 发表时间:
2025-02-01 - 期刊:
- 影响因子:7.900
- 作者:
Xinzhi Zhong;Yang Zhou;Amudha Varshini Kamaraj;Zhenhao Zhou;Wissam Kontar;Dan Negrut;John D. Lee;Soyoung Ahn - 通讯作者:
Soyoung Ahn
Using high fidelity discrete element simulation to calibrate an expeditious terramechanics model in a multibody dynamics framework
使用高保真离散元模拟在多体动力学框架中校准一个快速的岩土力学模型
- DOI:
10.1007/s11044-024-10051-z - 发表时间:
2025-01-22 - 期刊:
- 影响因子:2.400
- 作者:
Yuemin Zhang;Junpeng Dai;Wei Hu;Dan Negrut - 通讯作者:
Dan Negrut
Dan Negrut的其他文献
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{{ truncateString('Dan Negrut', 18)}}的其他基金
Collaborative Research: Frameworks: Simulating Autonomous Agents and the Human-Autonomous Agent Interaction
协作研究:框架:模拟自主代理和人机交互
- 批准号:
2209791 - 财政年份:2022
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
Collaborative Research: Differentiable and Expressive Simulators for Designing AI-enabled Robots
协作研究:用于设计人工智能机器人的可微分和富有表现力的模拟器
- 批准号:
2153855 - 财政年份:2022
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
Collaborative Research: Elements:Software:NSCI: Chrono - An Open-Source Simulation Platform for Computational Dynamics Problems
合作研究:Elements:Software:NSCI: Chrono - 计算动力学问题的开源仿真平台
- 批准号:
1835674 - 财政年份:2019
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
Towards Modeling & Simulation-Enabled Design of Intelligent Robots A Meeting Dedicated to Identifying Opportunities, Summarizing Challenges, and Brainstorming for Impactful Di
迈向建模
- 批准号:
1830129 - 财政年份:2018
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
Using Mixed Discrete-Continuum Representations to Characterize the Dynamics of Large Many-Body Dynamics Problems
使用混合离散连续体表示来表征大型多体动力学问题的动力学
- 批准号:
1635004 - 财政年份:2016
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
SI2-SSE Collaborative Research: SPIKE-An Implementation of a Recursive Divide-and-Conquer Parallel Strategy for Solving Large Systems of Linear Equations
SI2-SSE 合作研究:SPIKE——求解大型线性方程组的递归分治并行策略的实现
- 批准号:
1147337 - 财政年份:2012
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
CAREER: Advanced Computational Multi-Body Dynamics for Next Generation Simulation-Based Engineering
职业:下一代基于仿真的工程的高级计算多体动力学
- 批准号:
0840442 - 财政年份:2009
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
Collaborative Research: Simulation of Multibody Dynamics. Leveraging New Numerical Methods and Multiprocessor Capabilities
合作研究:多体动力学模拟。
- 批准号:
0700191 - 财政年份:2007
- 资助金额:
$ 37万 - 项目类别:
Standard Grant
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