Abstract
This paper describes a sensor placement method to identify target modes of structures. The novelty in this method is to use sign patterns of target modes for determining sensor locations. A set of target modes is selected based on FEM analysis results. We consider the amplitude vector of target modes at each location, and the element of the amplitude vectors is set to be 1 if it has a positive value and -1 if negative. To identify a set of target modes, combinations of sign patterns are selected and locations with the maximum amplitude in each sign pattern are selected as candidate sensor locations. However, sensor locations sometimes have the same amplitude information. In this case, these sensor locations are close to each other, and this is undesirable from a viewpoint of accurate modal identification. To avoid this problem, the method introduces redundancy of amplitude information. Minimizing the redundancy enables to disperse sensors throughout structures and to accurately identify target modes. A numerical example is provided to show the effectiveness of the method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of Mechanical Engineering Congress, Japan
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
