Collaborative Research: Computational Strategies for Resolving Schallamach Waves in Flexible Multibody Dynamics Simulations

协作研究:解决柔性多体动力学仿真中的 Schallamach 波的计算策略

基本信息

  • 批准号:
    1562357
  • 负责人:
  • 金额:
    $ 15.5万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2016
  • 资助国家:
    美国
  • 起止时间:
    2016-08-01 至 2021-07-31
  • 项目状态:
    已结题

项目摘要

This research project addresses the need for enhanced modeling and simulation of flexible multibody dynamics (FMD) that can accurately capture friction-induced behavior, including stick-slip motion and Schallamach detachment waves. Such system-level frictionally excited vibrations can greatly degrade efficiency and lifetime, and may be especially significant where compliant materials are in frictional contact with relatively rigid bodies, as in soft robots, engineered biological systems, and other emerging engineering areas. In addition to modeling and simulation, this research will apply the enhanced FMD formulations -- together with complementary experiments -- to study biomimetic surface patterning for influencing and controlling undesired frictionally induced behavior. The FMD simulation tools arising from this project will reduce the need for expensive and time-consuming design prototypes in important US industries, including automotive, manufacturing equipment, and robotics. The project includes outreach activities to increase participation of underrepresented groups in engineering through K-12 internship and training opportunities in the investigators' labs.The primary research objective is to explore the applicability and enhancement of flexible multi-body dynamics simulation tools for analyzing Schallamach waves, and related stick-slip contact dynamics. Resolving such frictional behavior will be accomplished using new and efficient contact formulations, together with efficient implementations and solution procedures. Detailed experiments will test the multi-body dynamics predictions and suggest directions for further refinements. In later stages of the research, both computation and experiments will be exercised to demonstrate new capabilities for exploring design changes, such as various micro- and macro-scale patterns, that can regularize sliding and limit detrimental stick-slip and vibration behavior. Successful completion of the research effort will greatly increase our ability to design and tailor multi-body systems incorporating soft elements while significantly extending the reach of flexible multi-body dynamics simulation to new and important research areas.
该研究项目解决了柔性多体动力学(FMD)的增强建模和仿真的需要,可以准确地捕获摩擦引起的行为,包括粘滑运动和Serryamach分离波。这种系统级的非线性激励振动会极大地降低效率和寿命,并且在柔性材料与相对刚性的主体摩擦接触的情况下可能特别重要,如在软机器人、工程生物系统和其他新兴工程领域中。除了建模和模拟之外,这项研究还将应用增强的FMD配方以及补充实验来研究仿生表面图案化,以影响和控制不期望的摩擦诱导行为。该项目产生的FMD仿真工具将减少美国重要行业对昂贵和耗时的设计原型的需求,包括汽车,制造设备和机器人。该项目包括通过K-12实习和在研究人员实验室的培训机会来增加代表性不足的群体在工程中的参与的外展活动。主要研究目标是探索柔性多体动力学模拟工具的适用性和增强,用于分析Sürkamach波和相关的粘滑接触动力学。解决这种摩擦行为将使用新的和有效的接触配方,以及有效的实施和解决方案的程序。详细的实验将测试多体动力学预测,并提出进一步改进的方向。在研究的后期阶段,将进行计算和实验,以展示探索设计变化的新能力,例如各种微观和宏观尺度模式,这些模式可以规范滑动并限制有害的粘滑和振动行为。研究工作的成功完成将大大提高我们设计和定制包含软元素的多体系统的能力,同时将柔性多体动力学模拟的范围扩展到新的重要研究领域。

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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Tamer Wasfy其他文献

Limited Vitrectomy versus Observation for Bilateral Terson Syndrome in a Child
  • DOI:
    10.1016/j.oret.2020.09.005
  • 发表时间:
    2021-03-01
  • 期刊:
  • 影响因子:
  • 作者:
    Hashem H. Ghoraba;Mark W. Johnson;Mahmoud Leila;Tamer Wasfy;Hammouda Hamdi Ghoraba
  • 通讯作者:
    Hammouda Hamdi Ghoraba
Results of pupil dilatation using Oasis ring in eyes with narrow pupil during phacoemulsification
超声乳化吸除术中瞳孔狭窄眼使用 Oasis 环扩瞳的结果
  • DOI:
    10.4103/djo.djo_15_17
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    A. Ghoneim;Tamer Wasfy
  • 通讯作者:
    Tamer Wasfy
Comparative analysis of outcomes after wavefront-guided and wavefront-optimized laser in-situ keratomileusis in high myopic eyes
高度近视眼波前引导和波前优化激光原位角膜磨镶术术后结果的比较分析
  • DOI:
    10.4103/jcrs.jcrs_16_17
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    A. Ghoneim;Tamer Wasfy;S. Abass;Hazem A Elbedewy;M. Khater;Mounir A. Khalifa;A. Sharaf;Mohammed Nasef;Heba M. Shafik;Ahmed Fekry Elmaria
  • 通讯作者:
    Ahmed Fekry Elmaria
Changes in the tear film production and quality after 20- and 23-G vitrectomy: a prospective comparative study
20G 和 23G 玻璃体切除术后泪膜产生和质量的变化:一项前瞻性比较研究
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Tamer Wasfy;E. Gad;S. Soliman
  • 通讯作者:
    S. Soliman
Prevalence and topographical characteristics of keratoconus in patients with refractive errors in the Egyptian delta
埃及三角洲屈光不正患者圆锥角膜的患病率和地形特征
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hazem A Elbedewy;Tamer Wasfy;S. Soliman;Moataz Sabry;A. Awara;Sharif Y El Emam;Heba M. Shafik;M. Alam
  • 通讯作者:
    M. Alam

Tamer Wasfy的其他文献

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{{ truncateString('Tamer Wasfy', 18)}}的其他基金

SBIR Phase I: Virtual Learning Environment for University Physics
SBIR 第一阶段:大学物理虚拟学习环境
  • 批准号:
    0711693
  • 财政年份:
    2007
  • 资助金额:
    $ 15.5万
  • 项目类别:
    Standard Grant
STTR Phase II: Advanced Virtual Manufacturing Lab for Research, Training, and Education
STTR 第二阶段:用于研究、培训和教育的先进虚拟制造实验室
  • 批准号:
    0521710
  • 财政年份:
    2005
  • 资助金额:
    $ 15.5万
  • 项目类别:
    Standard Grant
STTR Phase I: Advanced Virtual Manufacturing Lab for Research, Training, and Education
STTR 第一阶段:用于研究、培训和教育的先进虚拟制造实验室
  • 批准号:
    0339024
  • 财政年份:
    2004
  • 资助金额:
    $ 15.5万
  • 项目类别:
    Standard Grant

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