This paper presents a method used for calculating the natural frequency of gases subjected by small pressure pulsations in pipe systems. 本文介绍一种用以计算微压扰动下管道中气柱自振频率的方法。
The cable was analyzed by multi-element in FEM, its static results were compared with catenary theory, its natural frequency was compared with the chord vibration theory. 采用拉索多单元模拟法分析拉索，将静力分析结果与悬链线理论解进行了对比，并将自振频率与琴弦理论解进行了对比。
