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yi dong zhi liang zuo yong xia qiao shi qi zhong ji zhu liang zhen dong fen xi
Pages: 59-63
Year: Issue:  4
Journal: Haisting and Conveying Machinery

Keyword:  bridge cranegirdermoving massinherent frequencycoupled oscillation;
Abstract: Based on the fact that the vibration formula for moving mass and coupled system of the girder of bridge crane are developed,the paper calculates the first three-order inherent frequency and dynamic response of the coupled sys-tem.The numerical simulation result shows that the moving mass is related to inherent frequency of the girder coupled sys-tem,the mass ratio and position ratio of the moving mass to girder of the bridge crane,and the speed and acceleration of moving mass.For deflection calculation,the effect of initial speed and acceleration of moving mass on lateral vibration de-flection of the bridge crane must be considered.
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