摘要
应用弦单元计算了自由悬挂系统的自振特性,进行了敏感性分析,并研究了动力响应。结果表明,自由悬挂系统具有两大动力特征:悬挂物体的质量具有使吊索刚化效应;动力响应具有复振现象。
In this paper the cord element method is used to study the sensitivity of the free vibration property and dynamic response of the free hanging systems.Thc calculatoin results show that the free hanging systems possess two important dynamic characteristics. The fall line is rigidified by its hanging mass; Dynamic response has the phenomena of compound vibration.
关键词
自由悬挂系统
动力特性
有限元
cord element
rigid effect
compound vibration
equivalent shearing rigidity
