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Active noise control of flexible linkage mechanism with piezoelectric actuators

机译:带压电执行器的柔性连杆机构的主动噪声控制

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An active noise control method for flexible linkage mechanism systems with piezoelectric actuators and strain gauge sensors is studied. By employing a set of wave number transformations on the original equations of motion of the flexible linkage mechanisms, a new set of equations of motion is obtained, in which the unknown variables can describe the structural acoustic radiation level of the mechanism system directly. On the basis of the new equations, the active noise control of the flexible linkage mechanism system with piezoelectric actuators is discussed. Firstly, the optimal control forces are determined based on the optimal control theory. Secondly, the controller of the system that consists of the output feedback and the disturbance feed-forward control laws is presented. Simulations show that the method presented in this paper is valid.
机译:研究了带有压电致动器和应变仪传感器的柔性连杆机构系统的主动噪声控制方法。通过对柔性连杆机构的原始运动方程采用一组波数变换,可以得到一组新的运动方程,其中未知变量可以直接描述机械系统的结构声辐射水平。在新方程的基础上,讨论了带压电致动器的柔性连杆机构系统的主动噪声控制。首先,基于最优控制理论确定最优控制力。其次,提出了由输出反馈和扰动前馈控制律组成的系统控制器。仿真表明本文提出的方法是有效的。

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