Rigid-flexible coupled dynamic model of a huge-type truck crane's boom system during its slewing hoisting

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (5) : 175-179.

YAN Shijun，PENG Jian, LIU Ze，LIU Yunsi

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Abstract

Here, rigid-flexible coupled dynamic behaviors of a huge-type truck crane's boom system during its slewing hoisting were studied. A dynamic model for the system was built using Lagrange's equations and a hybrid frame reference to describe motions of the boom system and the lift load one. Using beam and rod elements to discrete the structure, a finite element analysis form for the model was constructed considering rigid-flexible coupled effects, inertial force effect and geometric non-linear ones of the system. A certain huge-type truck crane system was simulated with the proposed model, the results were compared with those of actual tests. It was shown that the proposed rigid-flexible coupled dynamic model has a better correctness.

Key words

truck crane's boom system / dynamic model / numerical simulation / rigid-flexible coupling

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YAN Shijun，PENG Jian, LIU Ze，LIU Yunsi. Rigid-flexible coupled dynamic model of a huge-type truck crane's boom system during its slewing hoisting[J]. Journal of Vibration and Shock, 2018, 37(5): 175-179

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