Vibration control of a pump truck boom system based on modal parametric identification

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (7) : 99-104.

LI Jiantao1,2, DENG Hua1, JIANG Sheng2, JIANG Wenjun3

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Abstract

Multi-attitude data of its boom system in a pump truck construction process were analyzed. Generally,there were 3 types of typical attitudes. Through finite element calculation,test modal parametric identification and their results comparison,the relation database of boom attitudes and modal frequency was established to quickly calculate modal parameters of any attitude combining with a numerical fitting formula. Based on modal analysis,a vibration reduction strategy including resonance avoidance and active damping vibration control was proposed. Tests under typical working conditions and horizontal attitude were conducted to verify the effectiveness of the proposed vibration control strategy for the boom system.

Key words

boom system dynamics / cantilever pipe / modal parameter identification / resonance avoidance / active damping vibration control

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LI Jiantao1,2, DENG Hua1, JIANG Sheng2, JIANG Wenjun3. Vibration control of a pump truck boom system based on modal parametric identification[J]. Journal of Vibration and Shock, 2019, 38(7): 99-104

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