【作者】 符双学； 周长江；

【Author】 FU Shuang-xue;ZHOU Chang-jiang;Guangzhou Civil Aviation College;State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University;

【机构】 广州民航职业技术学院； 湖南大学汽车车身先进设计制造国家重点实验室；

【摘要】 基于齿轮传动动测实验,引入有限单元法多场耦合分析和反求技术,提出了面向工程的复杂齿轮传动摩擦多性态概念,建立了复杂齿轮传动的"计算—实验综合模型"。在典型传动工况下,通过实验提取轮齿敏感区域的特征参数(齿根应变),并以此作为齿面摩擦因数反求的输入;借助有限单元法多场耦合分析技术真实模拟相应传动工况下的齿轮传动过程,并提取对应位置的齿根应变;由此建立以摩擦因数为自变量的目标函数,利用隔代映射遗传算法(IP-GA)的全局快速的搜索能力进行优化,输出在此传动工况下的齿面摩擦因数。相对于传统求解方法而言,该方法将系统建模、理论研究、数值模拟与实验测试相结合,实现了复杂齿轮传动系统齿面摩擦因数的量化计算,求解更趋合理。齿面摩擦的深入研究,对完整构建齿面摩擦特性参数计算理论体系、探索齿轮摩擦机理、促进减振降噪技术的开发均具有重要的意义。更多还原

【Abstract】 Based on the gear drive test experience,the finite element multi field coupling analysis method and technology of computational inverse study are applied,then engineering oriented complex gear drive friction characteristic concept is raised;"calculation-experiment composite model" is built.Under typical gear drive working lubrication conditions,the sample point characteristic parameters(root strains) of tooth sensitive area are acquired by test,and the root strains are input to inverse analysis procedure;The finite element multi field coupling analysis method is applied for the numerical simulation of gear drive in the same working lubrication conditions,and the sample point strains are acquire by simulation.And thus the objective function whose independent variable is the tooth face friction coefficient is built,and tooth face friction coefficients are settled and output by IP-GA global search ability.In comparison with traditional approaches,the settled results are more reasonable because it unite theoretical research、system modelingN numerical simulation and experimental test,quantitative calculation of tooth face friction coefficient is completed.Exactly research friction coefficients can help to build the theoretical calculation system of tooth friction characteristic parameters,search gear friction principle and upgrade the level of decrease noise and vibration of gear.更多还原