二齿差平面钢球活齿传动的模态分析
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摘要
二齿差平面钢球活齿传动是一种新型活齿传动。通过Pro/E软件建立了二齿差平面钢球活齿传动系统三维实体模型,在考虑动态激励的情况下,利用ANSYS Workbench软件对二齿差平面钢球活齿传动进行了有限元模态分析。通过ANSYS Workbench有限元协同仿真环境求解出了对系统振动影响较大的各低阶振型及其固有频率。将激励频率与固有频率进行对比,对系统发生共振的可能性进行了考察。对各低阶振型的主要影响因素进行研究,对一种适用于设计阶段的避免机械系统共振的方法进行了探讨。结果表明,结合模态分析与激励分析,通过对系统相关区域的结构或参数进行调整,可以使某阶振型的固有频率发生定向改变,从而避免共振的发生。
The two-tooth-difference plane steel ball's movable teeth transmission is a new type of movable teeth transmission. In this article, the three-dimensional solid model suitable for the transmission system is set up by means of the Pro/E software. On the basis of dynamic excitation, the finite element modal analysis is carried out with the aid of the ANSYS Workbench software. By means of the collaborative simulation, both the low-order vibration modes and the natural frequencies that have great influence on the system vibration are identified. By comparing the excitation frequency with the natural frequencies, the possibility of system resonance is analyzed. Based on the study on the main influencing factors of the low-order vibration modes,the method for avoiding resonance is proposed, which can be adopted in the design stage. The results show that combined with modal analysis and excitation analysis, by adjusting the structure or parameters of the system's correlative areas, the natural frequencies of low-order vibration modes can be changed accurately, so as to avoid resonance.
The two-tooth-difference plane steel ball's movable teeth transmission is a new type of movable teeth transmission. In this article, the three-dimensional solid model suitable for the transmission system is set up by means of the Pro/E software. On the basis of dynamic excitation, the finite element modal analysis is carried out with the aid of the ANSYS Workbench software. By means of the collaborative simulation, both the low-order vibration modes and the natural frequencies that have great influence on the system vibration are identified. By comparing the excitation frequency with the natural frequencies, the possibility of system resonance is analyzed. Based on the study on the main influencing factors of the low-order vibration modes,the method for avoiding resonance is proposed, which can be adopted in the design stage. The results show that combined with modal analysis and excitation analysis, by adjusting the structure or parameters of the system's correlative areas, the natural frequencies of low-order vibration modes can be changed accurately, so as to avoid resonance.
引文
[1]宜亚丽,安子军,曲继方.摆动活齿传动啮合副运动状态分析与共轭齿廓滑动率研究[J].机械传动,2013,37(4):6-9.
[2]黎磊,梁尚明,周剑.摆动活齿传动中心轮热分析[J].四川大学学报:工程科学版,2015,47(S1):146-150.
[3]宜亚丽,邵苍,金贺荣,等.双相激波摆杆活齿传动齿廓设计与分析[J].机械传动,2015,39(12):69-72.
[4]赵纯可,梁尚明,张杰.二齿差摆杆活齿传动的齿形分析与仿真[J].四川大学学报:工程科学版,2015,47(S1):151-157.
[5]乔慧,李剑锋,陈兴,等.二齿差摆动活齿传动齿廓方程及几何性质分析[J].机械设计与制造,2012(11):40-42.
[6]周荣亮,梁尚明,莫春华.基于ANSYS的滚柱活齿减速器轴系的模态分析[J].机械,2009,36(9):43-45.
[7]安子军,高飞.摆杆活齿传动扭转振动分析与建模研究[J].机械设计与研究,2007,23(3):79-81.
[8]张文举,安子军.基于振动理论的摆动活齿传动机构动态优化设计[J].机械设计,2009,26(1):33-36.
[9]许立忠,李冲,邢继春.考虑啮合激励时压电谐波活齿传动动力学研究[J].燕山大学学报,2015,39(3):226-234.
[2]黎磊,梁尚明,周剑.摆动活齿传动中心轮热分析[J].四川大学学报:工程科学版,2015,47(S1):146-150.
[3]宜亚丽,邵苍,金贺荣,等.双相激波摆杆活齿传动齿廓设计与分析[J].机械传动,2015,39(12):69-72.
[4]赵纯可,梁尚明,张杰.二齿差摆杆活齿传动的齿形分析与仿真[J].四川大学学报:工程科学版,2015,47(S1):151-157.
[5]乔慧,李剑锋,陈兴,等.二齿差摆动活齿传动齿廓方程及几何性质分析[J].机械设计与制造,2012(11):40-42.
[6]周荣亮,梁尚明,莫春华.基于ANSYS的滚柱活齿减速器轴系的模态分析[J].机械,2009,36(9):43-45.
[7]安子军,高飞.摆杆活齿传动扭转振动分析与建模研究[J].机械设计与研究,2007,23(3):79-81.
[8]张文举,安子军.基于振动理论的摆动活齿传动机构动态优化设计[J].机械设计,2009,26(1):33-36.
[9]许立忠,李冲,邢继春.考虑啮合激励时压电谐波活齿传动动力学研究[J].燕山大学学报,2015,39(3):226-234.