The Analysis and Experiment of Obstructing Vibration Propagating for Middle and Low Frequencies

• Main Author: 辛正雄
• Other Authors: 陳柏台
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/41030244899689587940

碩士 === 國立海洋大學 === 系統工程暨造船學系 === 89 === Control structural vibration is an important and practical goals for engineers. High frequency vibration usually can be solved by using vibration isolation devices on the source of vibration or damping materials on the structures. However, it is hard to control vibration due to middle and low frequencies. This thesis proposes obstructing vibration propagating by using stiffened plates, which are formed by wedding stiffeners on the plates. The study is performed using numerical simulation and experiment measurement. We apply commercial finite element software NASTRAN to compute frequency response. The numerical analysis is compared with experiments. Results of both analyses and experiments are interpreted in terms of vibration isolations.