摘要
针对圆柱直齿轮副的模态和动态响应问题,利用有限元软件进行分析。首先在UG中建立圆柱齿轮副的三维实体模型,并导入有限元软件patran中,建立起有限元模型。然后通过模态分析得出前20阶固有频率及相应主振型,模态结果表明了从动轮固有频率较低,较易产生共振;在模态分析的基础上,对齿轮副进行了动力学瞬态响应分析,结果显示结构在工作冲击载荷作用下不易发生破坏。
The finite element method is used aim to analyze the modal and dynamic response problem of a cylindrical gear pair. First,the 3D solid modal of the gear pair is built by UG, which is imported to the software patran to build the finite element modal. Then,the first 20 natural frequencies and vibration modes can be gotten by modal analysis. The results show that the natural frequency of the driven wheel is lower, and easy to produce resonance. Finally, the dynamics transient response of the gear pair is analyzed based on modal analysis results, indicating that the whole structure is less prone to damage under the working impact loading.
出处
《航空制造技术》
北大核心
2014年第9期69-72,共4页
Aeronautical Manufacturing Technology
关键词
齿轮
有限元
模态分析
动力学响应
Gear system Finite element Modal analysis Dynamic response
