I have a problem with mathematical interpretation of COMAC for my analytical problem in matlab, which I use to compare the mode shape of cantilever beams. Any ideas?
Muhammad Usman Tariq
May be these might help:
http://sem-proceedings.com/12i/sem.org-IMAC-XII-12th-Int-12-24-4-Damage-Location-Using-Vibration-Mode-Shapes.pdf
http://civil.iisc.ernet.in/~manohar/manohar_serc.pdf
https://www.scribd.com/doc/238865172/Damage-Detection-Frm-Mode-Shape-1
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Guillaume Vermot Des Roches
MAC, Comac and other similar indicators test the orthogonality of modal vectors using various norms (mainly euclidean) and scaling strategies.
Try to illustrate your COMAC values for two orthogonal vectors and two collinear vectors to understand how your indicator works.
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