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A new continuously variable transmission system parameters matching and optimization based on wheel loader
Mechanism and Machine Theory ( IF 5.2 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.mechmachtheory.2020.103876
Yong You , Dongye Sun , Datong Qin , Bangzhi Wu , Jihao Feng

Abstract On the basis of improving efficiency and automatic adaptability, a novel hydraulic mechanical power reflux transmission (HMPRT) is a considerable framing and suitable for a wheel loader. However, in the design of HMPRT parameter matching, the improvement of transmission efficiency, speed regulation, and power performance are mutually affected and restricted. To obtain good comprehensive transmission performance, a parameter matching design method for HMPRT is proposed. First, the basic transmission characteristics of the HMPRT system are analyzed, and the maximum and minimum system speed ratios are determined. Then, the influence rules of transmission parameters on the transmission performance of the HMPRT are analyzed. Based on the determined evaluation indexes, a multi-objective optimization model is established and its weight coefficients of the sub-objectives are determined by an analytic hierarchy process. The transmission parameters are optimized using a particle swarm optimization algorithm of simulated annealing. Finally, the structural parameters of the relevant parts are determined. The simulation results reveal that when compared with the prototype loader, the HMPRT loader with optimized matching parameters can effectively improve the system efficiency and reduce fuel consumption while ensuring the power performance.

中文翻译:

基于轮式装载机的新型无级变速传动系统参数匹配与优化

摘要 在提高效率和自动适应能力的基础上,一种新型的液压机械动力回流传动装置(HMPRT)是一种相当适用于轮式装载机的构架。但是,在HMPRT参数匹配的设计中,传输效率、调速、动力性能的提升是相互影响和制约的。为了获得良好的综合传输性能,提出了一种HMPRT的参数匹配设计方法。首先,分析了HMPRT系统的基本传动特性,确定了最大和最小系统速比。然后分析了传输参数对HMPRT传输性能的影响规律。根据确定的评价指标,建立了多目标优化模型,并通过层次分析法确定其子目标的权重系数。使用模拟退火的粒子群优化算法优化传输参数。最后确定相关部件的结构参数。仿真结果表明,与原型装载机相比,优化匹配参数的HMPRT装载机在保证动力性能的同时,可以有效提高系统效率,降低油耗。
更新日期:2020-08-01
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