CAJ | 학술논문

针对某新型少齿差行星减速器,进行了不同啮合位置时的多体接触有限元分析,求得轮齿时变啮合刚度,采用动力接触有限元法计算齿轮啮合冲击激励,得出包括时变刚度激励、误差激励、啮合冲击激励的齿轮啮合内部动态激励.建立减速器的有限元动力分析模型,在综合考虑内部激励和外部激励的情况下计算了减速器的时域和频域响应及加速度级1/3倍频程结构噪声.利用振动测试分析仪对新型少齿差内啮合减速器进行测试分析,并与有限元计算结果进行对比,二者较为吻合.
침대모신형소치차행성감속기,진행료불동교합위치시적다체접촉유한원분석,구득륜치시변교합강도,채용동력접촉유한원법계산치륜교합충격격려,득출포괄시변강도격려、오차격려、교합충격격려적치륜교합내부동태격려.건립감속기적유한원동력분석모형,재종합고필내부격려화외부격려적정황하계산료감속기적시역화빈역향응급가속도급1/3배빈정결구조성.이용진동측시분석의대신형소치차내교합감속기진행측시분석,병여유한원계산결과진행대비,이자교위문합.
With finite element method of multi-body contact problems, the time-variant stiffness at different rota- tional position of a new type gear reducer with small tooth number difference was obtained, and the dynamic contact finite element method was used to analyze meshing impact excitations, then the internal excitations including excitations of time- variant stiffness, gear error and meshing impact were calculated. A dynamic finite element model of a gear reducer was es- tablished and used to analyze its dynamic response in time-domain and frequency-domain as well as one-third octave accel- eration grade for its structural borne noise of the gear reducer under dynamic excitation. At last, an experiment of vibration analysis of the reducer was conducted using an analysis instrument of vibration test. The computational results obtained were in a good agreement with the test data.