Vibration and multi-crack identification of Timoshenko beams under moving mass using the differential quadrature method

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• 作者：H. Chouiyakh^a ; L. Azrar^b ; ^c ; ^{l.azrar@um5s.net.ma} ; K. Alnefaie^c ; O. Akourri^a
• 关键词：Huang Hilbert transform ; Timoshenko beam ; Forced vibration response ; Multicracks ; Identification ; Moving mass ; DQM
• 刊名：International Journal of Mechanical Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：120
• 期：Complete
• 页码：1-11
• 全文大小：608 K
• 卷排序：120

文摘

Numerical procedures for vibration of multicracked Timoshenko beams under moving mass. Elaboration of multi-crack identification based on the free and forced responses. Multi-cracks identification based on HHT, EMD and instantaneous frequencies. Space and time DQM for piecewise domains and coupling effects. New identification process based on adjusting mass and speed of applied moving mass.