摘要
电梯的振动是乘运质量的重要因素之一,拉格朗日方程是振动理论的基础。通过推导拉格朗日方程,建立常见两种曳引比(1∶1和2∶1)曳引驱动电梯悬挂系统垂直方向的动力学模型,分别得出3自由度和7自由度的动力学微分方程。通过建立垂直方向动力学模型,为后续运用Matlab进行模态分析,推导关键参数对电梯振动的影响规律建立了理论基础。
The vibration of elevator is one of the important factors of transportation quality,and lagrange equation is the basis of vibration theory.By deriving Lagrange equation,two kinds of common traction ratio(1∶1 and 2∶1)were established to drive the vertical dynamic model of elevator suspension system,and the dynamic differential equations of 3-DOF and 7-DOF were obtained respectively.Through the establishment of vertical dynamic model for the subsequent use of MATLAB for modal analysis,the theoretical basis of the key parameters on the impact of elevator vibration is established.
作者
王军泉
汤国强
WANG Junquan;TANG Guoqiang(Shenzhen Institute of Special Equipment Inspection and Test,Shenzhen,Guangdong 518000,China)
出处
《机电工程技术》
2020年第6期56-58,87,共4页
Mechanical & Electrical Engineering Technology
关键词
基础力学
拉格朗日方程
动力学模型
微分方程
basic mechanics
lagrange equation
dynamic model
differential equation
