Design and Optimization of High Ground Clearance Self-Propelled Sprayer Chassis Frame

Liquan Lu, Bin Liu, Enrong Mao, Zhenghe Song, Jun Chen and Yu Chen ()
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Liquan Lu: College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China
Bin Liu: Beijing Electric Vehicle Co., Ltd., Beijing 102606, China
Enrong Mao: Beijing Key Laboratory of Optimized Design for Modern Agricultural Equipment, China Agricultural University, Beijing 100083, China
Zhenghe Song: Beijing Key Laboratory of Optimized Design for Modern Agricultural Equipment, China Agricultural University, Beijing 100083, China
Jun Chen: College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China
Yu Chen: College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China

Agriculture, 2023, vol. 13, issue 2, 1-19

Abstract: As an important machine for agricultural application, the upland gap self-propelled sprayer is environmental friendly and operates efficiently. In this paper, the chassis frame, which is one of the important components of the sprayer, is studied and a disconnected longitudinal beam frame with an X-shaped reinforcement beam was designed. The static mechanical properties of the frame under bending, torsion, emergency braking and emergency turning conditions are analyzed by a finite element method, and the optimization idea was proposed. On this basis, the topology optimization method was applied to optimize the crossbeam and the reinforcement beam positions, resulting in a 2.2% reduction in the overall mass of the frame, a 19.4% reduction in the maximum deformation while maintaining a small change in the maximum stress in the bending condition, and a 4.1% and 15.1% reduction in the maximum deformation and maximum stress of the frame in the torsion condition, respectively. The frame section width and thickness parameters were optimized by multi-objective driven optimization. The results showed that the frame mass and maximum stress were reduced by 6.8% and 1.9%, respectively, in the bending condition at the cost of a slight increase in frame deformation.

Keywords: self-propelled sprayer; chassis frame; finite element analysis; topology optimization (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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