摘要
在振动主动控制问题中,压电作动器常表现出一定的非线性特性。研究压电作动器的非线性特性,对于设计智能结构中的控制系统和控制策略非常重要。该文针对压电作动器表现出的非线性特性,提出一种基于模糊自适应滤波算法的前馈主动控制方法。数值仿真结果表明了该非线性模糊自适应控制方法的有效性。
Piezoelectric actuators are usually used in active control of vibration in recent years.However,the popular filteredx LMS algorithm is limited to linear control problems using feedforward control techniques.It is a problem to design the control system and its control method due to the nonlinearity of piezoelectric actuators.A fuzzy logic system based control structure and adaptive algorithm suitable for driving nonlinear feedforward control systems is presented in this paper.The simulation result for the active control of vibration using the nonlinear piezoelectric actuator shows the effectiveness of this nonlinear fuzzy adaptive control method.
出处
《压电与声光》
CSCD
北大核心
2003年第1期78-80,83,共4页
Piezoelectrics & Acoustooptics
基金
中国博士后科学基金资助
