Cancelation of transducer effects from frequency response functions: Experimental case study on the steel plate

Autor: Pedram Zamani, Abbas Taleshi Anbouhi, MR Ashory, MM Khatibi, Reza Masoudi Nejad
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Advances in Mechanical Engineering, Vol 8 (2016)
Druh dokumentu: article
ISSN: 1687-8140
16878140
DOI: 10.1177/1687814016645442
Popis: Modal analysis is a progressive science in the experimental evaluation of dynamic properties of the structures. Mechanical devices such as accelerometers are one of the sources of lack of quality in measuring modal testing parameters. In this article, elimination of the accelerometer’s mass effect of the frequency response of the structure is studied. So, a strategy is used for eliminating the mass effect using sensitivity analysis. In this method, the amount of mass change and the place to measure the structure’s response with least error in frequency correction is chosen. Experimental modal testing is carried out on a steel plate, and the effect of accelerometer’s mass is omitted using this strategy. Finally, a good agreement is achieved between numerical and experimental results.
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