轻型座椅式架空单线索道非线性动力分析

NON-LINEAR DYNAMIC ANALYSIS OF CHAIR MONOCABLE CIRCULATING ROPEWAY

轻型座椅式架空单线索道运行过程模拟是几何非线性连续系统动力问题。本文提出了张力差调节法，把连续多跨悬索结构的动力分析简化为一系列单跨悬索的计算。提出了不同时刻划分单元的新概念．结合Ｎｅｗｍａｒｋ法与ＮｅｗｔｏｎＲａｐｈｓｏｎ法，建立了索道非线性有限元动力分析模型，为索道系统非线性分析提供了新方法。并针对三跨的索道，进行了模拟计算。

The running procedure simulating of chair monocable circulating ropeway is a geometrical nonlinear dynamoic problem. This paper proposes the method of tension--difference--adjustment. With this method, dynamic analysis of multispan cables becomes the analysis of sequential single span cables. The paper proposes a new concept of dividing elements at different times, by means of combining Newmark method with Newton--Raphson method, this sets up a non--linear dynamic analysis model of ropeway. It provides a new method for non--linear analysis of ropeway. The paper also computes a ropeway with three spans.