【作者】 姚金勇； 李传日； 刁晓栩；

【Author】 YAO Jin-yong,LI Chuan-ri,DIAO Xiao-xu Department of System Engineering of Engineering Technology,Beihang University,Beijing 100083,China

【机构】 北京航空航天大学系统工程系；

【摘要】 给出了使用多个振动台和激振器的振动模拟系统的实时控制算法。首先对经典的多振动台控制理论和方法进行了分析,给出了算法控制效果的仿真结果。为了在试验件的模态频率处获得更好的收敛特性,提出了一种收敛特性可控的自调谐控制算法。设计了基于VxWorks的实时控制系统作为算法的验证平台,实现了实时振动控制核心所需要的高效的向量和矩阵处理算法。仿真和试验结果展示了方法的灵活性和有效性。更多还原

【Abstract】 A study for the control algorithm of vibration simulation system using multiple shakers and sensors is presented.The classical multi-shaker control theory and methods are first reviewed,from which the simulation results are given.A modified self-tuning algorithm with controllable convergence behavior is proposed to get better control near the modal frequency of the structure.To verify the algorithm,a real-time control system using the real-time kernel VxWorks as the algorithm development platform is designed.A series of highly efficient vector and matrix algorithms which is the core of the random vibration control process are achieved.The results of simulations and experiments demonstrate the feasibility of the proposed method.更多还原