CAJ | 학술논문

航空航天器结构振动主动控制研究一直非常活跃，其中自适应滤波 FULMS 算法构成主要控制方法之一，但该算法存在一个如何提取有效参考信号的问题。提出一种改进型 FULMS 振动控制算法，算法过程是通过从振动结构中直接提取振动响应残差信号，进而基于控制器结构和算法过程数据构造出参考信号，满足于激扰信号的相关性并进入算法控制过程；在此基础上，构建了一种压电机敏框架结构和实验平台进行实验验证，阐述了实验模型结构模态分析、分布式压电传感器和驱动器优化配置，以及实验平台构建和实验过程分析。研究结果表明，改进型 FULMS 算法较为有效地解决了参考信号实际获取问题，并具有良好的收敛性和结构振动抑制效果，对自适应滤波振动控制算法进一步实用化具有良好意义。
항공항천기결구진동주동공제연구일직비상활약，기중자괄응려파 FULMS 산법구성주요공제방법지일，단해산법존재일개여하제취유효삼고신호적문제。제출일충개진형 FULMS 진동공제산법，산법과정시통과종진동결구중직접제취진동향응잔차신호，진이기우공제기결구화산법과정수거구조출삼고신호，만족우격우신호적상관성병진입산법공제과정；재차기출상，구건료일충압전궤민광가결구화실험평태진행실험험증，천술료실험모형결구모태분석、분포식압전전감기화구동기우화배치，이급실험평태구건화실험과정분석。연구결과표명，개진형 FULMS 산법교위유효지해결료삼고신호실제획취문제，병구유량호적수렴성화결구진동억제효과，대자괄응려파진동공제산법진일보실용화구유량호의의。
Active vibration control of aerospace vehicles is a hot topic.The daptive filtered-U least mean square (FULMS)algorithm is a main control algorithm.But vibration reference signal extraction is always a difficult problem for FULMS algorithm.Here,through picking vibration response residual signals,an improved FULMS algorithm was proposed to construct the reference signal related to external disturbance signal based on the controller structure and the algorithm process data.A test platform was constructed to test a piezoelectric smart aircraft framework structure.Its modal analysis was done,piezoelectric sensors and actuators were ployed optimally.The simulation and test results showed that the proposed algorithm can be used to solve the reference signal extraction problem and it has a good convergent speed and a good vibration suppression performance;it is of significance for adaptive filtering vibration control to be realized.