基于简支梁振动的主动控制技术研究  

Research on active vibration control of simply-supported beam

作　　者：周振龙 程光明[2] 

机构地区：[1]浙江省特种设备检验研究院电梯检验所,浙江杭州310020 [2]吉林大学机械科学与工程学院,吉林长春130025

出　　处：《机电工程》2011年第4期418-421,共4页Journal of Mechanical & Electrical Engineering

摘　　要：振动主动控制技术正成为解决航空航天等领域振动控制问题的有效手段。压电材料由于其质量轻、响应速度快等优点在振动主动控制领域中占据了相当重要的位置。为验证其可行性,将简支梁简化成三自由度系统,建立了简支梁的运动微分方程和状态空间方程,基于独立模态空间控制法(IMSC)设计了系统的控制律。对简支梁在初始扰动和持续激励下的振动进行了主动控制实验。实验结果表明,所设计的控制系统能够有效抑制两种情况下简支梁的振动。The active vibration control is becoming an effective mean to solve the vibration control problems of the aerospace and other fields.For its light and swift response,piezoelectric material occupies an important position of vibration engineering.In order to verify the feasibility,the simply-supported beam was predigested as a three degree of freedom system,and then the differential equation and state space equation were set up.According to the independent modal space control（IMSC）,the control law was design.The vibration of beam under an initial disturbance and continuous incentives was controlled.The result proves that active vibration control of system is efficient.

关 键 词：简支梁 主动控制 压电驱动器 独立模态空间控制 

分 类 号：TH113.1[机械工程—机械设计及理论] TH123