Extracting mode shapes for beams through a passing auxiliary mass

• Main Authors: Zhang, Yao, Zhao, Hai-Sheng, Lie, Seng-Tjhen
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Mode Shapes; Auxiliary Mass; Engineering::Civil engineering
• Online Access: https://hdl.handle.net/10356/104655; http://hdl.handle.net/10220/49505
• Institution: Nanyang Technological University

This paper shows an approach to evaluate mode shapes for beams through using a passing auxiliary mass. The coupled system of an auxiliary mass passing over a beam is time-dependent, and the corresponding instantaneous frequencies (IFs) are equivalent to the mode shapes. Hence, reconstruction of the...