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A Modification to Unified Matrix Polynomial Approach (UMPA) for Modal Parameter Identification Read chapter Read first chapter

2019 | OriginalPaper | Chapter

4. Full-Field Modal Analysis Using a DSLR Camera

Authors : Jaka Javh, Janko Slavič, Miha Boltežar

Published in: Structural Health Monitoring, Photogrammetry & DIC, Volume 6

Publisher: Springer International Publishing

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Abstract

High-speed camera measurements are increasingly being used in modal analysis to measure full-field response measurements using Digital image correlation and other Optical Flow methods. High-speed cameras can be very expensive, this is why this paper aims at measuring and identifying the full-field response using cheaper still-frame cameras, such as DSLR and mirrorless cameras. Using Spectral Optical Flow Imaging (SOFI) full-field operational shapes can be acquired using still-frame cameras. This study demonstrates a hybrid modal parameter identification of full-field mode shapes using an accelerometer and a DSLR camera, for responses far above the DSLR camera frame-rate (demonstrated up to 1 kHz).

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previous chapter Identifying Mode Shapes of Turbo-Machinery Blades Using Principal Component Analysis and Support Vector Machines
next chapter Enhancing Standard GVT Measurements with Digital Image Correlation
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Metadata
Title
Full-Field Modal Analysis Using a DSLR Camera
Authors
Jaka Javh
Janko Slavič
Miha Boltežar
Copyright Year
2019
Book
Structural Health Monitoring, Photogrammetry & DIC, Volume 6

Print ISBN: 978-3-319-74475-9

Electronic ISBN: 978-3-319-74476-6

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-74476-6_4

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