摘要
根据运动弹性动力学的理论方法 ,建立了连铸机四偏心式振动机构非线性有限元动力学仿真模型。该模型考虑了传动轴的扭转变形 ,连杆和导向板弹簧的弯曲和拉伸变形 ,导向板弹簧的几何非线性及平衡弹簧的非线性等因素的影响。在研究求解该时变系数非线性微分方程组数值解法的基础上 ,开发了具有良好人机界面的仿真软件 ,可以计算出多种参数和工况条件下关键点的弹性位移、应力和运动副反力的变化规律。
The nonlinear finite element dynamic simulation model for an oscillation mechanism with 4 eccentric axis for continuous casting machine is established by means of the theory of kineto elastodynamics. The model considers the torsional deformation of transmission axes, bending and longitudinal deformation of links, geometrical nonlinearity of guiding leaf springs, and the elastic nonlinearity of balance springs. Based on an algorithm for solving the time dependent coefficients nonlinear differential equations numerically, computer software is developed which has an easy to use interface.The dynamic response to elastic deformation and stress in key parts and forces acting on the bearings under various parameters and working conditions can be calculated.
出处
《重型机械》
2000年第3期36-42,共7页
Heavy Machinery
基金
国家"九五"科技攻关项目! (95 -5 2 5 -0 1-0 7-0 3)
关键词
振动机构
计算机仿真
连铸机
结晶器
oscillation mechanism,computer simulation,continuous casting machine
