| 基于激振频率波动的原点反共振振动机的振幅灵敏度 |
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| 引用本文： | 焦春旺,刘杰,王福斌,王倩倩.基于激振频率波动的原点反共振振动机的振幅灵敏度[J].东北大学学报(自然科学版),2011,32(7):996-999,1023. |
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| 作者姓名： | 焦春旺 刘杰 王福斌 王倩倩 |
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| 作者单位： | 东北大学机械工程与自动化学院,辽宁沈阳,110819 |
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| 基金项目： | 国家自然科学基金资助项目(50775029); 中央高校基本科研业务费专项资金资助项目(N090603008) |
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| 摘 要： | 分析了原点反共振振动机的原理,推导了反共振机上下质体稳态振幅表达式.在不考虑参数波动的情况下,针对设计指标上质体稳态振幅5 mm,下质体稳态振幅0.5 mm,以不同的质量比和反共振频率比进行了参数选择.推导了上下质体振幅相对激振频率的灵敏度公式,分析了反共振频率比、质量比对上下质体振幅灵敏度的影响.结果表明:上下质体质量比相同,反共振频率比越大,上下质体振幅相对激振频率的灵敏度越低;反共振频率比相同,质量比越小,上质体振幅相对激振频率的灵敏度越低,下质体振幅相对激振频率灵敏度随质量比的变化很小.
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| 关 键 词： | 频率波动 振动机 原点反共振 振幅灵敏度 |
Amplitude Sensitivity of the Driving Point Anti-resonance Vibrating Machine Based on Fluctuation of the Exciting Frequency |
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| JIAO Chun-wang,LIU Jie,WANG Fu-bin,WANG Qian-qian.Amplitude Sensitivity of the Driving Point Anti-resonance Vibrating Machine Based on Fluctuation of the Exciting Frequency[J].Journal of Northeastern University(Natural Science),2011,32(7):996-999,1023. |
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| Authors: | JIAO Chun-wang LIU Jie WANG Fu-bin WANG Qian-qian |
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| Institution: | JIAO Chun-wang,LIU Jie,WANG Fu-bin,WANG Qian-qian(School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | The principle of driving point anti-resonance vibrating machines was analyzed and the expressions of the upper and lower body's steady amplitude were derived.With the upper body's steady amplitude of 5 mm and the lower body's steady amplitude of 0.5 mm,parameters were chosen according to different mass ratios and anti-resonant frequency ratios.The sensitivity formulas to the exciting frequency of the upper and lower body's amplitude were derived.Effects of the mass ratio and anti-resonant frequency ratio on... |
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| Keywords: | frequency fluctuation vibrating machine driving point anti-resonance amplitude sensitivity |
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