摘要
弹性绳是钢丝绳、绳索等的理论模型。综述了弹性绳的研究文献,提出了弹性绳系统的多体动力学建模方法。为了保证仿真结果不失真,根据运动速度判断摩擦力的大小。研究了类似于质量-弹簧系统的基本弹性绳系统和周期性速度波动的演示机构的运动,弹性绳的受力与变形的关系用分段函数表示,考虑了滑动摩擦力的影响,将弹性绳作为特殊的体。计算机仿真结果表明该建模方法能够准确地研究弹性绳系统的力学行为和振动特性。
Elastic rope is the theoretic model of wire rope. The references of elastic rope were summarized. The multibody system dynamics modeling of elastic rope system was proposed. In order to ensure the veracity of movement, the friction was judged by the velocity of mass. The movement of basic elastic rope system resembling mass-spring system and the new showing machine of periodic velocity fluctuation were studied. The dynamic characteristic of elastic rope was expressed by subsection function. The friction is considered. The elastic rope is a kind of special body. Computing results show that the modeling method could be used to study the oscillation characteristic and movement of elastic rope system.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2008年第1期62-64,168,共4页
Journal of System Simulation
基金
中国石油天然气集团公司石油科技青年创新基金项目(05E7029)
山东省自然科学基金项目(Q2006A08)
中国石油大学科研基金项目(Y030306)。
关键词
多体动力学
弹性绳
曲柄滑块机构
仿真
multibody dynamics
elastic rope
slider-crank mechanism
simulation
