Aimed at the problem of very hard to build a precise dynamic model since there are many joints of bearings and gear mesh in gear transmission system, the simplification method for each joint of bearing joint and gear mesh joint of the system in overall modeling was proposed.Based on the simplification method and entity modeling by finite element method (FEM),an integrated dynamic model of the gearbox designed was built.Through the parameter identification and theoretic analysis,the stiffness and damping parameters of the two joints were calculated respectively,and the FEM was conducted to solve each stage of modal of the gearbox. The test modal was obtained by carrying out modal test and analysis to the gearbox, and was compared with test results. The results show that as the natural frequency error between the theoretical model calculation and experimental results is only 6%,and the modal shapes are agreed quite well, which shows the validity of the dynamic model of gear transmission system by this method.
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毛宽民,李江艳,詹耿,寸花英.齿轮啮合结合部动力学建模及试验验证[J].机床与液压,2015,43(11):123-129. . Dynamic Modeling and Experimental Verification of Gear Mesh Joint[J]. Machine Tool & Hydraulics,2015,43(11):123-129