基于Virtual.Lab Motion的齿轮系统非线性振动仿真.pdf

文档介绍：基于 Motion 的齿轮系统非线性振动仿真
王炎,马吉胜
(军械工程学院武器系统仿真实验室, 河北石家庄 050003)
摘要:以 LMS Motion 为建模环境,建立了齿轮系统非线性振动模型,通过用户自定义程序实现非
线性函数的控制。以 LMS DADS 求解器快速精确求解齿轮系统动力学方程。在后处理中,分析了非线性因素对轮齿啮
合力的影响,为研究齿轮系统的振动、冲击、优化设计提供了另一种思路。
关键词:齿轮系统;扭转振动;非线性因素; Motion.
The non-linear vibration analysis of gear System
based on Motion
Wang Yan, Ma Jisheng
(The simulation laboratory of weapon system, Ordnance Engineering College, Shijiazhuang 050003, China)
Abstract: The non-linear vibration model of gear system was constructed by using LMS Motion, and the non-linear
function was controlled by means of user-defined subroutine. The dynamic equations of gear system were solved automatically and
accurately by LMS DADS Solver. The influence of non-linear factors on mesh force was considered, and it provides another way for the
research on gear system vibration, impulsion and optimization design.
Key words: Gear system; non-linear vibration; Non-linear factor; Motion.
引言
齿轮非线性振动方程中包含时变啮合刚度、传动误差、齿轮副间隙,轴承间隙等非线性函数。目前,
国内外学者偏重于如何简化非线性函数并寻求适合的求解方法[1-3],求解过程比较复杂,结果不够直观。本
文另辟新径, Motion建立了齿轮系统非线性振动虚拟样机模型,以LMS DADS
求解器快速求解动力学方程并实时显示动力学特性曲线,方便的获得各种载荷数据,可用于齿轮系统的优
化设计、振动冲击分析。
1 动力学分析
当不考虑齿面摩擦力时,。由于不考虑传动轴的具体
振动形式,因此可将传动轴、轴承和箱体等的支承刚度和阻尼用组合等数值 K py , C py , K gy Cgy 表示。

图 1