The effect of weld residual stress on the free vibrational characteristics of cylindrical shell through the analytical method

Journal of Vibroengineering

Yong Liu¹  Luyun Chen² 

[1] Jiangsu Key Laboratory of Green Ship Technology, Jiangsu, China;School of Naval Architecture, Ocean and Civil Engineer, Shanghai Jiaotong University, Shanghai, China;

关键词: weld residual stress;    cylindrical shell;    vibrational characteristics;    natural frequency;    mode shape;   

DOI  :  

来源: DOAJ

【 摘 要 】

The effect of weld residual stress on the free vibrational characteristics of cylindrical shell is investigated. Motion equations of cylindrical shell with weld residual stress are established based on Flügge theory, the interaction between weld residual stress and displacements is investigated. The analytical method is applied to calculate the vibrational mode. Weld residual stress can induce the variation of free vibrational characteristics. The amplitude mainly effects the variation magnitude of natural frequency and mode shape, and the distribution dose on the variation trend.

【 授权许可】

Unknown