Optimization design of the hydro-pneumatic suspension system for high clearance self-propelled sprayer using improved MOPSO algorithm  

作　　者：Fan Yang Yuefeng Du Changkai Wen Zhen Li Enrong Mao Zhongxiang Zhu 

机构地区：[1]College of Engineering,China Agricultural University,Beijing 100083,China [2]Beijing Key Laboratory of Optimized Design for Modern Agricultural Equipment,China Agricultural University,Beijing 100083,China

出　　处：《International Journal of Agricultural and Biological Engineering》2024年第2期109-122,共14页国际农业与生物工程学报（英文）

基　　金：financially supported by Major scientific and Technological Innovation Projects of Shan Dong Province(Grant No.2019JZZY010728-01);supported by Bintuan Science and Technology Program(Grant No.2022DB001);Innovative Platform of Intelligent Agricultural Equipment Design and Manufacturing(Grant No.2021XDRHXMPT29).

摘　　要：Large high clearance self-propelled sprayers were widely used in field plant protection due to their high-efficiency operation capabilities.Influenced by the characteristics of field operations such as high power,heavy weight,high ground clearance,and fast operation speed,the comprehensive requirements for the ride comfort,handling stability and road friendliness of the sprayer were increasingly strong.At the present stage,the chassis structure of the high clearance selfpropelled sprayer that attaches great importance to the improvement of comprehensive performance still has the problems of severe bumps,weak handling performance and serious road damage in complex field environments.Therefore,this paper proposes an optimization design method for hydro-pneumatic suspension system of a high clearance self-propelled sprayer based on the improved MOPSO(Multi-Objective Particle Swarm Optimization)algorithm,covering the entire process of configuration design,parameter intelligent optimization,and system verification of the high clearance self-propelled sprayer chassis.Specifically,chassis structure of the hydro-pneumatic suspension suitable for the high clearance self-propelled sprayer was designed,and a design method combining the improved MOPSO algorithm based on time-varying fusion strategy and adaptive update with the parameter optimization of hydro-pneumatic suspension based on this algorithm was proposed,and finally the software simulation and bench performance verification were carried out.The results show that the optimized hydropneumatic suspension has excellent vibration reduction effect,and the body acceleration,suspension dynamic deflection and tire deflection were increased by 16.5%,9.9%and 0.9%respectively,compared with those before optimization.The comprehensive performance of the hydro-pneumatic suspension designed in this study is better than that of the traditional suspension.

关 键 词：high clearance self-propelled sprayer vibration reduction hydro-pneumatic suspension MOPSO multi-objective optimization 

分 类 号：S24[农业科学—农业电气化与自动化]