以啄木鸟玩具为例的LCP问题求解  

SOLUTION OF THE LCP PROBLEM USING WOODPECKER TOY AS AN EXAMPLE

作　　者：易舜智[1] 晋晓曦[2] 张晚云[3] 彭刚[3] 

机构地区：[1]国防科学技术大学指挥军官基础教育学院,湖南长沙410072 [2]国防科学技术大学光电科学与工程学院,湖南长沙410072 [3]国防科学技术大学理学院,湖南长沙410073

出　　处：《物理与工程》2013年第5期27-32,共6页Physics and Engineering

基　　金：国家自然科学基金(批准号:11104348)资助

摘　　要：啄木鸟玩具的运动是一个典型的工程力学线性互补问题.本文基于线性互补模型,结合开源Siconos软件,从实验、理论和模拟仿真上详细分析了啄木鸟玩具的运动过程.模拟仿真与实验结果均表明,啄木鸟玩具运动周期可细分为多个过程,初始激振条件的变化不会改变啄木鸟玩具稳定后的运动行为,而套筒与杆摩擦系数的改变会极大地影响啄木鸟的运动.本研究工作对工程力学中的线性互补问题具有很好的借鉴作用.The movement of woodpecker toy is a typical linear complementary problem of engi- neering mechanics. This paper studied the movement of woodpecker toys from experiment, theory and simulation based on linear complementary model combined with open source soft- ware Siconos. Simulation and experimental results show that the movement of woodpecker toy in one cycle can be divided into several processes. The change of initial excitation conditions does not alter the stable movement behavior of woodpecker toy. But the movement of wood-pecker toy can be greatly impacted by the change of friction coefficient between sleeve and rod. The work provides a good reference for the linear complementary problem in Engineering Mechanics.

关 键 词：线性互补问题 多体系统动力学 Siconos 啄木鸟玩具 

分 类 号：TB12[理学—工程力学]