| 可变法向压力对质量-带系统粘滑运动的影响分析 |
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| 引用本文： | 刘丽兰,刘宏昭,吴子英,原大宁. 可变法向压力对质量-带系统粘滑运动的影响分析[J]. 西安理工大学学报, 2010, 26(1): 20-25 |
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| 作者姓名： | 刘丽兰 刘宏昭 吴子英 原大宁 |
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| 作者单位： | 西安理工大学机械与精密仪器工程学院,陕西,西安,710048 |
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| 基金项目： | 国家科技重大专项计划基金资助项目，国家自然科学基金资助项目，西安理工大学优秀博士基金 |
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| 摘 要： | 为了揭示可变法向压力对机械系统粘滑运动的影响,以含干摩擦的质量-带系统为研究对象,将驱动带速表达为可变法向压力的变化频率和加速度的函数,得出了粘滑运动发生的临界驱动带速的解析表达式,同时分析了可变法向压力对极限环幅值的影响。在发生粘滑范围内,粘滑极限环的幅值随着可变法向压力的加速度的增加而增加,而随着变化频率的增加而减小。数值仿真和虚拟实验结果表明,法向压力的变化对机械系统稳定性有很大影响,在高精度高性能的机械系统结构设计和稳定性分析中,其作用不应被忽视。
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| 关 键 词： | 摩擦 粘滑 极限环 可变法向力 |
Effects of the Varying Normal Force on the Stick-Slip Behavior of Mass-Belt Systems |
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| LIU Li-lan,LIU Hong-zhao,WU Zi-ying,YUAN Da-ning. Effects of the Varying Normal Force on the Stick-Slip Behavior of Mass-Belt Systems[J]. Journal of Xi'an University of Technology, 2010, 26(1): 20-25 |
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| Authors: | LIU Li-lan LIU Hong-zhao WU Zi-ying YUAN Da-ning |
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| Affiliation: | LIU Li-lan,LIU Hong-zhao,WU Zi-ying,YUAN Da-ning (Faculty of Mechanical , Precision Instrument Engineering,Xi'an University of Technology,Xi'an 710048,China) |
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| Abstract: | In order to uncover the effects of the varying normal force on the stick slip motion,a mass-belt driven system with dry friction is taken as the research object.The driving velocity of the belt is expressed as a function of frequency and acceleration of the varying normal force to obtain the analytical express of the critical driving velocity for the stick slip occurrence.In addition,the influence of the varying normal force on limit cycles is also analyzed.The amplitude of the limit cycle increases with th... |
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| Keywords: | friction: stick slip limit cycle varying normal force |
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