利用动力松弛法对预应力张拉膜进行初始平衡形状的确定以及静载分析。
Initial equilibrium shape and static behavior of pretensioned membrane structures is analyzed by dynamic relaxation method in this paper.
算例分析表明本文提出的找形方法是正确有效的，相对而言，改进的动力松弛法在计算精度和稳定性方面要优于ANSYS找形方法。
Example results show that the methods presented in this paper is accurate and effective. The improved dynamic relaxation method is better than that using ANSYS at accuracy and stability.
对悬链面找形时发现，当黏性系数不大于0.7时，动力松弛法收敛，网格节点分布较无阻尼时均匀。
During form-finding of catenoid, when the viscosity coefficient was not more than0.7, the dynamic relaxation method taking damp into account had good convergence and the nodes distributed more even.
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