摘要
针对压电复合材料结构前馈主动控制中存在的某些非线性问题 ,本文提出一种模糊自适应前馈主动控制方法 ,解决一类参考信号与外扰呈非线性函数关系的主动控制问题。数值仿真结果表明 ,该非线性模糊自适应控制方法优于线性滤波 - x L
Active control of vibration has been the subject of a lot of research in recent years. However, the popular filtered x LMS algorithm is limited to linear control problems. A fuzzy system based control structure and adaptive algorithm is presented in this paper. This nonlinear adaptive filter is capable of suppressing a primary disturbance, which is a nonlinear function of the reference signal fed to the filter. The simulation results show that the nonlinear fuzzy adaptive control method performs better than linear filtered x LMS method for a nonlinear control problem.
出处
《机械科学与技术》
CSCD
北大核心
2002年第1期94-96,共3页
Mechanical Science and Technology for Aerospace Engineering
基金
中国博士后基金项目资助
关键词
压电结构
复合材料梁
主动控制
模糊自适应控制
Piezoelectric composite beam
Active vibration control
Nonlinear control
Adaptive fuzzy filter
