Multi Working Condition Topology Optimization and Model Fusion Reconstruction of Pump Truck Boom Structure

doi:10.3901/JME.2025.09.402

Abstract

Abstract: The weight regulations for concrete pump trucks are becoming increasingly stringent, and there is an urgent need for lightweight design of the pump truck boom system. Taking the 1th boom section of a certain pump truck as an example, firstly, the multi-body dynamics analysis model of the boom is established, and all extreme working conditions are identified. Then, through multi condition topology optimization and model fusion reconstruction technology, a hollow-out design is carried out with a weight reduction of 300 kg. Finally, the static strength and fatigue reliability assessments are conducted, and the test results show that the static stress of the hollow-out boom structure does not exceed 580 MPa, and the equivalent fatigue life of the structure is 9 600 working hours, which meets the industry's usage requirements. The hollow-out boom structure has been widely used in multiple pump truck products and has not experienced any failure or damage modes. The research results strongly support the sustained international leading level of lightweight design for boom structure in the pump truck industry.

Key words: concrete pump truck, multi working condition topology optimization, model fusion reconstruction, lightweight structure, boom test

CLC Number:

TH6
TH123

LI Peng, SONG Xueguan, XIAO Libo, GAO Rongzhi, WANG Jiaqian, WANG Yitang, YANG Liangliang. Multi Working Condition Topology Optimization and Model Fusion Reconstruction of Pump Truck Boom Structure[J]. Journal of Mechanical Engineering, 2025, 61(9): 402-410.

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