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Optimal Sensor Locations Using Exact Modal Reduction

Jayakumar, Vivek
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623250902608798

Abstract Details

2021, MS, University of Cincinnati, Engineering and Applied Science: Mechanical Engineering.
Correlation of Finite Element (FE) models to experimental models via model reduction methods is a well documented technique. Model reduction methods have been used to reduce the large matrices present in the FE solution to a more manageable size without losing important modal information. The technique involves the use of a transformation matrix which can be used to reduce as well as expand back to the original size of the vector. For this technique to work a method for selection of primary degrees of freedom (DOFs) is required. This thesis focuses on creating a semi-automated method that utilizes the Exact Modal Reduction (EMR) method for reduction and an energy criterion for selection of the primary DOFs. The Modal Assurance Criterion (MAC) is used to validate the reduce model. The methodology being created in this thesis is for the purposes of a novice user to judge quickly the DOFs where measurements can be performed. The approach utlizes an iterative method of selection of the primary DOFs to arrive at an optimal number using the Exact Model Reduction (EMR). ii
Randall Allemang, Ph.D. (Committee Chair)
Michael Mains, M.S. (Committee Member)
Allyn Phillips, Ph.D. (Committee Member)
58 p.
Mechanical Engineering
Modal Reduction; Energy Criterion For Selection; Modal Assurance Criterion; Exact Modal reduction; Optimal Sensor Locations

Recommended Citations

Citations

  • Jayakumar, V. (2021). Optimal Sensor Locations Using Exact Modal Reduction [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623250902608798

    APA Style (7th edition)

  • Jayakumar, Vivek. Optimal Sensor Locations Using Exact Modal Reduction. 2021. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623250902608798.

    MLA Style (8th edition)

  • Jayakumar, Vivek. "Optimal Sensor Locations Using Exact Modal Reduction." Master's thesis, University of Cincinnati, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623250902608798

    Chicago Manual of Style (17th edition)

ucin1623250902608798
106
© 2021, some rights reserved.Creative Commons License Optimal Sensor Locations Using Exact Modal Reduction by Vivek Jayakumar is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.