摘要
由于链条结构上不是连续体以及存在多边形效应,精确地计算链条的固有频率比较困难。利用ANSYS首先分析紧边链条的预应力,然后进行模态分析,计算其固有频率和振型并与理论计算结果对比,证明了模态分析结果的正确。分析中首次利用了有限元法对齿形链进行模态仿真,正确模拟了齿形链条的横向振动。
Silent chain drive is a kind of transmission mechanism with a lot of flexible plates. It is difficult to calculate the natural frequencies of silent chain drive accurately because of the discontinuity of its structure and the polygonal effect. The flexible plates of chain of chain drive in the tension side is translated to the mechanical model with lumped mass based on the software ANSYS. The lumped mass element approach is used to analyze the natural frequency and the modal in the ANSYS. The results of the analysis match better with the theoretical results.
出处
《机械传动》
CSCD
北大核心
2007年第6期70-71,75,共3页
Journal of Mechanical Transmission
基金
国家自然科学基金资助项目(50375085
50775130)
关键词
齿形链
固有频率
模态分析
集中质量
Silent chain drive Free frequency Modal analysis Lumped mass
