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《Lubrication Engineering》 2009-04
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Thermal Mixed Lubrication Analyses of Involute Spur Gear Considering Roughness

Chang Tong Wang Youqiang(School of Mechanical Engineering,Qingdao Technological University,Qingdao Shandong 266033,China)  
Involute spur gear was made as an object to establish line contact thermal mixed lubrication mathematical model.Based on the multi-grid(MG)method for solving the pressures,the multi-level multi-integration(MLMI)approach for obtaining the elastic deformation,a sequential column sweeping scheme for solving the energy equations and the numerical technique through shear stress analysis to get equivalent viscosity of non-Newtonian fluid,full arithmetic solution of spur gear thermal mixed lubrication with a few parameters was got.The influence of the rotational speed,power,film ratio,etc on the lubricant film pressure and thickness was analyzed.The result shows that,as the rotational speed and the film ratio increase,central press decreases,film increases.And the power is on the contrary.
【Fund】: 国家自然科学基金项目(50875137);; 山东省自然科学基金项目(Y2007F30);; 青岛市科技发展计划项目(06-2-2-19-jch);; 山东省教育厅资助项目(Y07JY17)
【CateGory Index】: TH117.2
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