高架运输索道的静力分析

根据柔索应变与位移的非线性几何关系以及自重作用与温度影响下的平衡方程,采用欧拉描述的坐标系统精确地求得了各点的位移和张力的一般解。由高架运输索道静力问题建立的非线性代数方程组应用改进的Powell混合算法编制的高精度DNEQNF程序直接进行求解。在例题中计算了索道在两端各种高度、跨度以及温度不同的情形并进行了分析。用本文的方法对高度相同的索道问题与其他学者用不同方法得到的结果进行了对比和讨论。

Static analysis of the telpher cableway for transportation

On the basis of nonlinear geometric relation between strain and displacement for flexible cable, the equilibrium equation under self-weight and influence of temperature ,an analytical solution of displacement and tension for every point defined in Eulerian coordinate system is obtained accurately. To solve the nonlinear algebraic equation caused by telpher cableway for transport, the modified Powell hybrid algorithm with high precision routine DNEQNE of Fortran can be used directly. For example, a cableway with different altitude, span and temperature between two supports in each case has been analyzed. By presenting method for the problem of cableway with same altitude, the result has compared and discussed with various methods by other scholars.