工程设计学报2024，Vol.31Issue(2)：168-177,10.DOI:10.3785/j.issn.1006-754X.2024.03.129
基于参数化多体动力学模型的内齿式回转支承动态优化设计
Dynamic optimization design of internal toothed toothed slewing bearing based on parametric multi-body dynamic model
摘要
Abstract
The internal toothed slewing bearing has both the slewing bearing characteristics of rolling bearing and the gear meshing transmission characteristics.Under the action of combined load,its dynamic performance is affected by many factors,and it is easy to suffer from tooth wear or broken teeth,ring raceway wear and poor running accuracy.Considering the dynamic contact between the steel ball and the inner and outer ring raceway,the cage pocket hole and the meshing transmission between the inner ring teeth,the parametric multi-body contact dynamic model of an internal toothed slewing bearing was established.The influence of key design parameters such as radius of curvature of groove,hole diameter of cage pocket,initial contact angle and tooth displacement coefficient on the gear meshing force of slewing ring,contact force between No.1 steel ball and N1 raceway,and the axial and radial vibration displacement of the center of mass of the inner ring were analyzed.On this basis,the design of experiments(DOE)method was used to design and calculate the key design parameters of the toothed slewing bearing,and the dynamic performance of slewing bearing under the influence of multiple parameters was obtained.Combined with linear weighting method,a new multi-objective optimization function was constructed and solved by using unified dimension method and weight coefficient method,and a multivariate multi-objective optimization design method for the dynamic performance of slewing bearings was proposed,which provides a reference for the dynamic design of slewing bearings.The gear meshing force of slewing ring decreased by 49.27%,the contact force between No.1 steel ball and N1 raceway decreased by 29.6%,the axial vibration displacement of the center of mass of the inner ring decreased by 5.41%,the radial vibration displacement of the center of mass of the inner ring decreased by 15.88%.The performance of the rotary bearing was optimized.The research results provide a reference for the dynamic design of slewing bearing.关键词
回转支承/多体动力学/试验设计/动态优化设计/多目标优化Key words
slewing bearing/multi-body dynamics/experimental design/dynamic optimization design/multi-objective optimization分类
机械制造引用本文复制引用
曹望城,韩佳轩,姚廷强..基于参数化多体动力学模型的内齿式回转支承动态优化设计[J].工程设计学报,2024,31(2):168-177,10.基金项目
国家自然科学基金资助项目(12162016) （12162016）
