基于二次回归正交设计的啮合齿轮表面温度分析

为了缓解齿轮在啮合传动过程中齿面产生的局部高温导致齿轮表面固有熔焊粘附的问题,基于二次回归正交设计方法设计了27组因素水平试验,利用ANSYS软件对单个齿轮通过添加边界条件进行有限元分析,得到单个齿轮本体最高温度.通过Design-Expert软件对试验数据进行分析处理,得出:齿轮的转速z_1、齿轮的转矩z_2、齿轮的齿宽z_3和齿轮压力角z_4均方分别为556.82,1 813.69,278.17,20.02,即影响齿轮本体最高温度响应值的四因素主次顺序为齿轮的转矩z_2、齿轮的转速z_1、齿轮的齿宽z_3和齿轮压力角模数z_4;齿轮本体最高温度会随着齿轮的转速z_1、齿轮的转矩z_2和齿轮的齿宽z_3增大而增大;齿轮本体最高温度随着齿轮压力角z_4增大而减小.这一结论为齿轮的设计提供借鉴意义.

Analysis of meshing gear surface temperature based on quadratic regression orthogonal design

In order to alleviate the inherent problems which appear welding bond on the gear tooth surface caused by local high temperature in the process of meshing transmission,27 groups of factors level test were designed based on quadratic regression orthogonal design method,a single tooth was analyzed using ANSYS software by adding boundary conditions,and the highest tem-perature of a single tooth was got by using the Design-Expert software to analyze the test data. The results showed that the mean square of speed z1 ,torque z2 ,gear tooth width z3 and gear pressure angle z4 was 556.82,1813.69,278.17,20.02,respectively.The order of four fac-tors affected the highest temperature of tooth body was torque z2 ,speed z1 ,gear tooth width z3 , gear pressure angle z4;the highest temperature of gear body would increase with the increase of speed z1 ,torque z2 and gear tooth width z3 ,the highest temperature of gear body would de-crease with the increase of gear pressure angle z4 .The conclusion has reference value to the gear design.