基于局部应变补偿的加筋板改进滑模振动控制  

Improved sliding mode vibration control for a stiffened plate based on localstrain compensation

作　　者：杜菲[1,2,3] 马天兵[1,2,3] 刘健 罗智[3] DU Fei;MA Tianbing;LIU Jian;LUO Zhi(State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines,Anhui University of Science and Technology,Huainan 232001,China;Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan 232001,China;College of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室,安徽淮南232001 [2]安徽理工大学矿山智能装备与技术安徽省重点实验室,安徽淮南232001 [3]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《振动与冲击》2020年第6期176-180,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(51305003);安徽理工大学国家自然基金预研项目(2016yz004);安徽省博士后基金(2017B172)。

摘　　要：在加筋板的振动主动控制中,传感片和作动片多采用对位粘贴形式,经实验证明,此方式存在局部应变效应,会导致振动控制效果减弱,甚至控制发散。针对该问题,构建了局部应变补偿方案,设计了基于局部应变补偿的改进幂次趋近律滑模控制算法,并选择加筋板振动作为研究对象,利用NI-CompactRIO 9024平台进行了加筋板振动主动控制实验。实验结果表明,针对加筋板的第一阶模态,基于局部应变补偿的改进幂次趋近律滑模控制算法振动抑制效果达到13.16 dB,相对于未补偿的改进幂次趋近律滑模算法效果的10.59 dB,提升了2.57 dB。In the active vibration control of a stiffened plate,the sensing piece and the actuation piece are in a relative position pasting form.Experiments show that there is local strain effect in this way,which will lead to the attenuation of vibration control effect and even the divergence of control.Aiming at this,a local strain compensation scheme was constructed and an improved power law approaching sliding mode control algorithm based on local strain compensation was designed.The vibration mode of the stiffened plate was taken as the control object.An active vibration control experiment of the stiffened plate was carried out on the NI-CompactRIO 9024 platform.The experimental results show that the vibration suppression effect of the improved power law approaching sliding mode control algorithm based on local strain compensation could reach 13.16 dB for the first mode of the stiffened plate,which is 2.57 dB higher than the 10.59 dB of the uncompensated improved power law approaching sliding mode algorithm.

关 键 词：振动控制 局部应变 改进滑模 加筋板 

分 类 号：U270.1[机械工程—车辆工程]