Dynamic Characteristics and Sensitivities Analysis of a Power Turret Gear Train
The dynamic transmission characteristics and the sensitivities of the three stage ilder gear system of the new NC power turret are studied in the paper.Considering the strongly nonlinear factors such as the periodically time-varying mesh stiffness,the nonlinear tooth backlash,the lump-parameter model of the gear system is developed with one rotational and two translational freedoms of each gear.The eigenvalues and eigenvectors are derived and analyzed on the basis of the real modal theory.The sensitivities of natural frequencies to design parameters including supporting and meshing stiffnesses,gear masses,and moments of inertia by the direct differential method are also calculated.The results show the quantitative and qualitative impact of the parameters to the natural characteristics of the gear system.Furthermore,the periodic steady state solutions are obtained by the numerical approach based on the nonlinear model.These results are employed to gain insights into the primary controlling parameters,to forecast the severity of the dynamic response,and to assess the acceptability of the gear design.
gear train dynamic response natural property sensitivit
Lijiao Xu Nan Chen
College of Mechanical Engineering Southeast University Nanjing City,China
国际会议
南京
英文
1-5
2013-08-20（万方平台首次上网日期，不代表论文的发表时间）