轮式装载机工作机构动力学分析的有限元建模  

Dynamical Modeling of Wheel Loader's Work Device based on Finite Element Method

作　　者：蔡敢为[1] 张磊[1] 秦宇[1] 任延举[1] 张小杭[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《机械传动》2009年第6期35-38,共4页Journal of Mechanical Transmission

基　　金：广西科学基金项目(桂科自0832030);广西制造系统与先进制造技术重点实验室主任课题项目(桂科能07109008-009-Z);广西研究生教育创新计划资助项目(2007105930802M42)

摘　　要：运用等效单元思想,结合有限元方法,推导出轮式装载机工作机构的等效伪质量矩阵和等效力系表达式,并根据动力学普遍方程,建立系统的动力学非线性微分方程,求解采用降阶的四阶Runge—Kutta方法。建模过程简单,提高了建模的效率。所建方程反映了系统各个构件的运动关系,为轮式装载机工作机构的动力学分析提供了一种有效的建模方法。By the concept of equivalent elements,expression of the equivalent pseudo-mass matrix and the equivalent forces of the wheel load's work device are derived through the finite element method. Then,dynamical modeling equations are obtained based on the generalized dynamical equation. The solution of the equations is used to reduction of fourth-order Runge-Kutta methods. According to this method,the expression is concise,convenient and improvement for the efficiency of the modeling. The equations reflect the relationship between the various components of the movement,which can provide an effective way to dynamical modeling and analysis of wheel loader's work device.

关 键 词：轮式装载机 动力学 有限元 等效单元 

分 类 号：TH243[机械工程—机械制造及自动化] TP391.72[自动化与计算机技术—计算机应用技术]