摘要
对电梯轿厢-导轨耦合动力系统进行分析,建立12自由度非线性振动模型。用基于状态空间的数值迭代法对模型进行求解,研究当导轨不平顺度激励强度以及轿厢运行速度等因素发生改变时,轿厢水平振动的时域和频域特性。研究成果可为导轨安装误差的合理确定提供重要理论依据,同时也将对轿厢结构的优化设计、振动控制等方面的研究起到良好的推动作用。
A twelve-degrees-of-freedom nonlinear vibration model of the elevator cabin-rail coupled dynamic system is established based on the appropriate analysis of the cabin-rail coupled dynamic system. The numerical iterative solution method using the state-space approach is described. The properties in both time domain and frequency domain of the horizontal vibration of elevator cabin under different running conditions, such as the variation of the excitation intensity of rail irregularities or the variation of velocity, are explored. The exploration provides an important theoretical foundation for determining the reasonable tolerances of the guide rails in assembling. In the mean time, the result is helpful for impelling the studies on optimization of the cabin structure and vibration control of the cabin system.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2007年第8期186-191,共6页
Journal of Mechanical Engineering
基金
美国联合技术公司容闳基金。
关键词
电梯
轿厢
导轨不平顺度
振动
Elevator Cabin
Rail irregularities
Vibration
