摘要
以某型号电梯为参考原型,详细介绍了电梯在运行过程中出现的振动现象,在分析和合理简化的基础上,建立了电梯系统振动数学模型,运用振动理论分析了发生振动的原因,找出了系统共振发生的频率带,提出了变刚度电梯模型补偿策略的解决方法,结果表明改进后的电梯系统固有频率与曳引机激振频率一直不会相同,有效地防止了共振的发生,同时也减少了工作中的振动,提高了电梯的运行性能和安全性能,为以后的研究提供了一种有益的方法。
Taking a certain type of elevator for reference subject, vibration phenomenon was introduced particularly during elevator operation. On the basis of analysis and reasonable simplifying, mathematic model of vibration for the elevator system was established, and the reasons of vibration occurring was analyzed through vibration theory, finding out the frequency spectrum of system resonance and bringing forward the solution methods of variable stiffness elevator model compensatory strategies. The results indicates that the natural frequency of improved elevator system is continuously different from the excited frequency of the tractor, resonance occurring prevented effectively, meanwhile the vibration in operation is reduced, and operation and safety performances of the elevator are improved, providing a instructive method for after research.
出处
《机械》
2010年第1期35-36,77,共3页
Machinery
关键词
电梯
振动
固有频率
elevator
vibration
natural frequency
