Dynamic Analysis of Slider-Crank Mechanism with a Crack in the Flexible Linkage

• Main Authors: Jyh-Yao Lin, 林寘堯
• Other Authors: Siu-Tong Choi
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/71157287853783676720

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 93 === 　In this thesis, the dynamic behavior of slider-crank mechanism with a crack in the flexible linkage is studied. The crank of the system is assumed to be rigid and the flexible linkage is modeled as a Timoshenko beam. The crack in the flexible linkage is modeled as a transverse open crack whose local flexibilities are calculated by using a fracture mechanics approach and the Castigliano’s theorem. The finite element method and Hamiltion’s principle are employed to derive the equations of motion of the system. Dynamic responses are obtained by using the Runge-Kutta method. Influences on dynamic response of the system due to different depths and locations of the crack on flexible linkage are investigated.