• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 30 Issue 2
Apr.  2017
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Article Contents
LIU Huasen, CHENG Wenming, YIN Hao. Coupled Dynamics Analysis for a Flexible Beam with a Trolley Subjected to Pendulum Payload[J]. Journal of Southwest Jiaotong University, 2017, 30(2): 400-407. doi: 10.3969/j.issn.0258-2724.2017.02.025
Citation: LIU Huasen, CHENG Wenming, YIN Hao. Coupled Dynamics Analysis for a Flexible Beam with a Trolley Subjected to Pendulum Payload[J]. Journal of Southwest Jiaotong University, 2017, 30(2): 400-407. doi: 10.3969/j.issn.0258-2724.2017.02.025

Coupled Dynamics Analysis for a Flexible Beam with a Trolley Subjected to Pendulum Payload

doi: 10.3969/j.issn.0258-2724.2017.02.025
  • Received Date: 20 Jan 2015
  • Publish Date: 25 Apr 2017
  • The vibration of the crane beam and the residual swing of the payload cause fatigue damage of crane and affect the precise positioning of the payload. In this paper, a crane flexible beam with a moving trolley subjected to pendulum payload multibody coupled dynamic system was set up based on an elliptical pendulum constituted by payload with trolley and moving mass passing a bridge model. The differential equations of motions of the coupled system were deduced based on Lagrange equation. The numerical solution was derived by using the Newmark- step-by-step integration method. The effects of the crane speed and the payload mass on the vibration of the beam and the load swing were analyzed. Numerical analysis results indicate that the crane speed affects the vibration mode of the beam overhead crane, and vibration amplitude is proportional to the mass of payload. The bend at the beam midpoint is 4% larger than the results calculated by ANSYS. The swing of payload leads to periodic changes of the driving force and driving power of the overhead crane. The payload acceleration is positively related to the crane driving force and driving power range.

     

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