2423 周期的内部圧力変動を受ける曲率を持ったベローズ管の面内方向パラメトリック振動

概要

論文の詳細を見る
This paper deals with a theoretical study of in-plane parametric vibrations of a curved bellows subjected to oscillating internal fluid pressure excitation. In the theoretical analysis, the curved bellows is modeled as a combination of beam models including the effect of the internal fluid and fluid pressure by the finite element method. Mathieu's type equation is derived from the basic equation of the bellows. The natural frequencies of the curved bellows and the parametric instability boundaries are examined. As a result, the curved bellows have two types of parametric vibrations, longitudinal and transverse vibrations. The longitudinal parametric instability boundaries become broader with increasing the curved ratio of the bellows. On the other hand, the transverse parametric instability boundaries become narrower.
社団法人日本機械学会の論文
2003-08-05