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Application of independent component analysis in vibration

Parker, Anthony and Tran, Danh (2014) Application of independent component analysis in vibration. In: 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), 09 December 2014-12 December 2014, Byron Bay, NSW.

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This paper investigates the application of Independent Component Analysis (ICA) in vibration of structures to infer excitation forces from vibration response signals only. First, fundamental notions of ICA, statistical independence (SI) of variables and an ICA algorithm for real number, fastICA, were reviewed. The performance of ICA was assessed using harmonic force excitation as source signals and mixture signals are displacement responses from finite element simulation of vibration of a cantilever beam. It was found that fastICA could extract source signals that share most dynamic characteristics of the excitation source signals. Further studies are proposed to tailor ICA better to vibration signals.

Item Type: Conference or Workshop Item (Paper)
ISBN: 9780994152008
Uncontrolled Keywords: statistical independence; fastICA; ICA
Subjects: FOR Classification > 0913 Mechanical Engineering
Faculty/School/Research Centre/Department > College of Science and Engineering
Depositing User: Symplectic Elements
Date Deposited: 28 Jun 2016 02:27
Last Modified: 28 Mar 2019 03:47
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