二阶滑模离心-振动试验系统的振动控制 |
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引用本文: | 王跃钢,;左朝阳,;文超斌,;郭志斌. 二阶滑模离心-振动试验系统的振动控制[J]. 中国测试技术, 2013, 0(6): 1-4 |
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作者姓名: | 王跃钢, 左朝阳, 文超斌, 郭志斌 |
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作者单位: | [1]第二炮兵工程大学自动控制系,陕西西安710025; [2]解放军96165部队,江西上饶334109 |
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基金项目: | 国防预研基金项目(2001D1302) |
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摘 要: | 针对离心-振动试验系统的振动位移跟踪控制存在参数不确定性和干扰的问题,提出一种基于二阶滑模的振动位移跟踪控制方法。该方法基于高阶滑模控制基本原理,通过建立离心-振动复合试验系统数学模型,利用李雅普诺夫第二法设计出二阶滑模振动位移控制律。仿真结果表明:该方法在2 s内能够完成位移跟踪,跟踪准确度达到0.001 m,能够有效降低系统抖振,实现振动位移跟踪的精确定位,具有较高的控制精度和可靠性。
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关 键 词: | 振动控制 高阶滑模 位移跟踪 离心力 |
Vibration control based on second-order sliding mode for centrifuge force-vibration test system |
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Affiliation: | WANG Yue-gang, ZUO Zhao-yang, WEN Chao-bin, GUO Zhi-bin (1. Department of Automatic Control Engineering,the Second Artillery Engineering University, Xi' an 710025, China; 2. Unit 96165 , Shangrao 334109, China) |
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Abstract: | With the second-order sliding mode control theory, a sliding mode vibration control method was presented for a centrifuge force-vibration test system to solve parameter variations and external disturbances. Firstly,the basic idea of the higher-order sliding mode control was introduced,then the mathematical model of centrifuge force-vibration test system was described and the control law of the second-order sliding mode vibration displacement was derived based on Lyapunov second method. The simulation results show that the method accomplishes positioning track within 2 s,and position track accuracy reaches 0.001 m. The method can effectively eliminate system chattering and achieve precise positioning for vibration tracking maneuver with high precision and reliability. |
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Keywords: | vibration control higher-order sliding mode displacement trace centrifuge force |
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