Computational Dynamics of Mechanical Systems

机械系统的计算动力学

• 批准号: RGPIN-2019-06765
• 负责人: Kövecses, Jozsef
• 金额: $ 3.35万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=689233
• 关键词: Computational; Dynamics; Mechanical; Systems

This application aims at supporting the core components of my research program in the areas of Dynamics of Mechanical Systems. My research program deals with a broad range of topics in Dynamics ranging from fundamental theoretical work to research projects with industrial partners. My research group is typically composed of graduate students, postdoctoral fellows and undergraduate interns. HQP training is a very important element in my research program. ******A variety of new applications of dynamics modelling and simulation have emerged in recent years in areas such as virtual environments and reality, vehicle systems, and new fields of robotics. This proposal focuses on some fundamental research questions and problems, the solution of which can significantly advance the state of the art in mechanical system dynamics and applications in different fields. The proposed work and the results will expand my overall research program, increase the impact of my research, and contribute to develop research projects with industrial partners and international collaborations. The need for the research is motivated by both open scientific problems and industrial applications. ******A key part in all modelling, simulation and analysis methods is the representation of the interactions among the elements of a mechanical system. This includes various forms of bilateral and unilateral interactions and associated phenomena. A novel, general formulation is proposed for mechanical system modelling. This formulation will not assume the pre-existence of a certain type of interaction representation. We expect that this proposed formulation will make it possible to unify various approaches and devise more advanced algorithms and analysis tools to solve problems in leading-edge technology developments. ******We propose to develop a general approach for functional decomposition based modelling. Most state of the art mechanical engineering products represent elements mechatronic systems. An important question in the design and operation of such systems is to what extent the mechanical subsystem can contribute to enhance the overall performance of the system. The functional decomposition based approach will lead to important insight and tools to develop methods for mechanical performance shaping, and also to novel approaches, interpretations, and development possibilities for reduced-order models. ******Interactive simulation of complex systems plays an increasingly important role in many applications. In such settings the mechanical system model forms only one part, and it has to interface with other subsystems from different domains. We will particularly investigate the solution of stability problems in non-iterative co-simulation that is capable of interactive, real-time rates for virtual environments and prototyping. We will also address haptic interfacing and particularly the possibility of increasing the virtual stiffness in such systems. **

该应用程序旨在支持我的研究计划在机械系统动力学领域的核心组成部分。我的研究计划涉及广泛的动态主题，从基础理论工作到与工业合作伙伴的研究项目。我的研究小组通常由研究生、博士后和本科实习生组成。HQP培训是我的研究计划中非常重要的一部分。** 近年来，在虚拟环境和现实、车辆系统和机器人新领域等领域，出现了动力学建模和仿真的各种新应用。该建议侧重于一些基础研究问题和问题，这些问题的解决可以显着推进机械系统动力学的最新技术水平和在不同领域的应用。 拟议的工作和结果将扩大我的整体研究计划，增加我的研究的影响，并有助于开发与工业合作伙伴和国际合作的研究项目。这项研究的需要是由开放的科学问题和工业应用所激发的。** 所有建模、仿真和分析方法中的一个关键部分是表示机械系统元素之间的相互作用。这包括各种形式的双边和单边互动及相关现象。提出了一种新的，一般配方的机械系统建模。这个公式不会假设预先存在某种类型的交互表征。我们希望，这一拟议的配方将有可能统一各种方法，并制定更先进的算法和分析工具，以解决问题的前沿技术的发展。** 我们建议开发一种基于功能分解的建模的通用方法。大多数最先进的机械工程产品代表机电一体化系统的元素。这种系统的设计和操作中的一个重要问题是机械子系统在多大程度上可以有助于提高系统的整体性能。基于功能分解的方法将导致重要的洞察力和工具，以开发机械性能塑造的方法，也为降阶模型的新方法，解释和开发的可能性。 * 复杂系统的交互式仿真在许多应用中发挥着越来越重要的作用。在这样的设置中，机械系统模型仅形成一个部分，并且它必须与来自不同域的其他子系统接口。我们将特别研究非迭代协同仿真中的稳定性问题的解决方案，该方案能够为虚拟环境和原型设计提供交互式实时速率。我们还将解决触觉接口，特别是在这样的系统中增加虚拟刚度的可能性。**