This paper presents a method used for calculating the natural frequency of gases subjected by small pressure pulsations in pipe systems. 本文介紹一種用以計算微壓擾動(dòng)下管道中氣柱自振頻率的方法。
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. 采用拉索多單元模擬法分析拉索，將靜力分析結果與懸鏈線(xiàn)理論解進(jìn)行了對比，并將自振頻率與琴弦理論解進(jìn)行了對比。
