事故环境下电梯系统动力学建模  

Dynamic Modeling of Elevator System for Emergent Behavior

作　　者：张梁娟[1] 朱昌明[1] 史熙[1] 张鹏[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《上海交通大学学报》2008年第12期1997-2001,共5页Journal of Shanghai Jiaotong University

基　　金："十一五"国家科技支撑计划项目(2006BAK02B04)

摘　　要：从研究电梯安全性角度出发,采用集中质量的方法,并引入Lagrange乘子,建立了包括曳引绳在轮槽中的滑动、轿架碰撞缓冲器两种接触条件的电梯系统动力学模型.模型的建立可以就电梯紧急制停、蹲底等事故进行仿真.该模型的求解选用了Newmark法,并采用Baumgarte违约稳定法进行修正.仿真结果表明,所提出的模型可以用于模拟和研究电梯系统在该类事故中的动态特性,有助于电梯安全性设计.As viewed from elevator security, the method of concentrate mass and Lagrange multiplier were used to develop the dynamic model of an elevator system for emergent behavior with nonlinear contact elements between the rope and the sheave, car frame and buffer. The model can simulate some complex emergent behavior such as emergency braking, buffer strike. In addition, the dynamic analysis was carried out using Newmark method and Baumgarte method, and the numerical results indicate that the model is capable of capturing the dynamic characteristic of elevator system in accident. The model can be a valuable tool for use in the elevator safety design process.

关 键 词：电梯 缓冲器 事故 约束条件 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]