...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science >Dynamic characteristics of planar linear array deployable structure based on scissor-like element with differently located revolute clearance joints
【24h】

Dynamic characteristics of planar linear array deployable structure based on scissor-like element with differently located revolute clearance joints

机译：基于剪式元素的平面线性阵列可展开结构的动态特性，不同定位旋转间隙关节

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper comprehensively investigates the parametric effects of differently located revolute clearance joints on the dynamic behavior of planar deployable structure based on scissor-like element. Considering the real physical mechanical joints, the normal and the tangential forces in the revolute clearance joints are respectively modeled using Flores contact-force model and LuGre friction model. The resulting forces and moments are embedded in the equations of motion of the scissor deployable structure for accurately describing the effect of joint clearance and governing the dynamic response of this structure. The effects of the main parameters such as the location of the clearance joint, the clearance size and the number of clearance joints on the dynamic characteristics of a multibody mechanical system have been numerically evaluated, and the results indicate that joints at different locations in a mechanical system have different sensitivities to the clearance size, and the more sensitive joint should be controlled to reduce the nonlinear behavior of this structure. Also, it can be concluded that the motion in one revolute clearance joint will affect the motion in the other clearance joints and the dynamic interaction of clearance joints is the important source of structural behavior change. Therefore, in order to accurately predict the dynamic responses of the mechanical system, the clearance effect of each joint on the multibody system should be investigated and understood.
机译：本文全面研究了基于剪刀状元件的平面可展位结构动态行为的不同定位旋转间隙接头的参数效应。考虑到真实的物理机械接头，旋转间隙关节中的正常和切向力分别使用Flores接触力模型和Lugre摩擦模型进行建模。由此产生的力和力矩嵌入剪刀可展开结构的运动方程中，以准确地描述关节间隙和控制该结构的动态响应的影响。在数值评估了多体体系系统的动态特性的诸如间隙接头的位置，间隙尺寸和间隙接头数的主要参数的影响，结果表明了机械不同位置的关节系统对间隙尺寸具有不同的敏感性，应控制更敏感的关节以降低该结构的非线性行为。此外，可以得出结论，一个旋转间隙关节的运动将影响其他间隙关节中的运动，并且间隙关节的动态相互作用是结构行为变化的重要来源。因此，为了准确地预测机械系统的动态响应，应研究和理解每个接头对多体系系统的间隙效应。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号