Research Initiation: Structural Stiffness Variations in Flexible Multibody Dynamic Systems

该项目解决了当前日益增长的需求， 了解复杂多轴结构的刚度特性 身体机械系统 机器人、铰接式航天器和许多 其它配置属于这类系统。 目前正在 一般假定系统的结构刚度 在很宽的旋转范围内， 议案 重量更轻的组件的趋势使这一点失效 假设，并要求重新审查结构问题， 柔性多体系统的刚度。 这项研究开发了新的 了解这一问题的战略和技术， 大位移、小变形行为模拟 复杂的多体系统

This project addresses a current and increasing need to better understand the structural stiffness characteristics of complex multi body mechanical systems. Robots, articulated spacecraft and many other configurations fall in this class of systems. Currently, it is generally assumed that the structural stiffnesses of system components are nearly constant over a wide range of rotational motion. The trend toward lighter weight components invalidates this assumption and demands a reexamination of the issue of structural stiffness for flexible multibody systems. This research develops new strategies and techniques for understanding this issue and for the simulation of large displacement, small deformation behavior of complicated multibody systems.