摘要
建立了低速重载条件下水润滑橡胶合金轴承动力学模型,应用有限元软件进行了水润滑橡胶合金轴承在不同摩擦系数、载荷和速度条件下的复模态分析,结果表明水润滑橡胶合金轴承产生摩擦噪声时相邻模态重合;摩擦系数越大,模态耦合程度越高,系统越不稳定,发生噪声的可能性越大;载荷和速度对水润滑橡胶合金轴承产生摩擦噪声的影响较小。最后进行实验验证,结果表明该有限元模型对揭示低速重载条件下水润滑橡胶合金轴承摩擦噪声机理具有合理性,为进一步减小水润滑橡胶合金轴承振动、降低其噪声提供参考。
A dynamic model of a water lubricated rubber alloy bearing system under low speed and heavy duty was established. Complex modal analysis method and a FE software were used to analyze the friction-induced noises of the bearing with different friction coefficients, loads and speeds. Results indicated that the system stability reduces and more vibration noises occur with increase in friction coefficient, but the effects of load and speed on the friction-induced noises of the bearing are less. Finally, a comparison was made between the calculated results and test ones. It was shown that the FE dynamic model is reasonable, and it provides a reference for reducing the friction-induced noises of water- lubricated rubber alloy bearings.
出处
《振动与冲击》
EI
CSCD
北大核心
2013年第20期14-17,34,共5页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(51175521)
重庆市"两江学者"计划专项经费资助
中央高校基本科研业务费资助项目(CDJXS11111137)
关键词
水润滑轴承
摩擦噪声
复模态
结构噪声
water lubricated bearing
friction-induced noise
complex mode
structural noise
