摘要
首次将传动带改进为固支梁模型,研究了传动带由于带速的周期波动而产生的参数振动并确定了振动的稳定域。研究表明当波动周期接近2倍传动带的固有频率时会产生参数主共振,数值模拟结果表明带速和抗弯刚度对传动带的固有频率和共振稳定域均有影响。
An improved model of fixed beams has been used to analyze the stability and parametric vibration of a moving belt subjected to variations of the velocity of the belt for the first time. The analysis shows that principal parametric resonance will occur when the fluctuation of the belt frequency is close to two times its natural frequency. Numerical simulation indicates that both its velocity and bending stiffness influence its natural frequency and resonance stability regions.
出处
《机械科学与技术》
CSCD
北大核心
2006年第2期192-194,共3页
Mechanical Science and Technology for Aerospace Engineering
关键词
传动带
固支梁
参数振动
稳定城
moving belt
fixed beam
parametric vibration
stability region
