It provides a new analysis method for the calculation of thermal buckling problems of bars, and a base for stability analysis of heating transportation pipelines.
这为杆件热屈曲问题的计算，提供了一种新的分析方法；为热输管道的稳定性分析，提供了依据。
Numerical results indicate that the nonlinear solution is (necessary) to stability analysis because linear buckling loads are much higher than those of nonlinear buckling.
计算得到的线性屈曲稳定系数远远大于非线性稳定系数，表明线性屈曲分析结果不可靠，而宜采用非线性进行计算。
Finally the design and applications of several large PDLRSS projects were introduced, stability analysis were performed to satisfy overall reasonable strength level and buckling characteristics.
最后介绍了几个大型局部双层网壳工程设计应用，并进行了稳定特性分析，保证强度与稳定的合理性。
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