Output-only modal identification based on hierarchical Hough transform

• Published in: Journal of mechanical science and technology Vol. 30; no. 7; pp. 2941 - 2951
• Main Authors: Jin, Yi, Qin, Shaoqian, Guo, Jie, Zhu, Chang’an
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Mechanical Engineers 01.07.2016; Springer Nature B.V; 대한기계학회
• Subjects: Algorithms; Cantilever beams; Computer simulation; Control; Damping; Degrees of freedom; Dynamical Systems; Engineering; Fourier transforms; Free vibration; High speed cameras; Hough transformation; Hough transforms; Hyperplanes; Industrial and Production Engineering; Mathematical analysis; Mathematical models; Mechanical Engineering; Modal identification; Resonant frequencies; Resonant frequency; Vibration; 기계공학; Sparse component analysis; Blind source separation; Hough transform; Modal analysis

Sparse component analysis (SCA) has been introduced to the output-only modal identification for several years. This paper proposes a new method based on hierarchical Hough transform to extract the modal parameters of mechanical structures. First, the measured system responses are transformed to Time...