A Physical Model Based Research for Fault Diagnosis of Gear Crack
Because of the advantage of gear,gearbox was used widely.But its fault also brought many losses to the production and society.It was necessary to research and analysis on the dynamical behavior of the gear system.One kind of gear fault was numerically simulated so that the influence of gear fault to change of vibration state was studied theoretically,and the symptom generated by faults was found.A finite element model with crack in gear roots was established with mixed meshing of singularity and isoparametric elements.The automatic analysis program of crack propagation was developed based on the ABAQUS software and linear elasticity fracture mechanics.The crack propagation of involutesgear was simulated.The structural experiments of fault crack with different types and sizes were done,the vibration signals of the fault gear body and system were tested,and the dynamical characteristics of the structure and system were gained.The results were compared to that of simulation and theory,the validity of the theoretic and simulative was testified and the reliability was proved.There was important guidance for predicting the residual life of the gear with crack.
gear fault FEM simulation diagnosis reverse engineering
Jinfeng Hao Jianshe Kang Jingfei Li Zhining Zhao
Department of Equipment Command and Management Mechanical Engineering College Shijiazhuang, Hebei 05 Teaching and Research Section of Combat Simulation Artillery Command Academy of PLA Xuanhua, Hebei 0 Weapon System and Engineering Artillery Command Academy of PLA Xuanhua, Hebei 075100, China
国际会议
成都
英文
570-573
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）