自适应电磁分支电路阻尼振动控制理论与技术研究

Electromagnetic shunt damping (EMSD) is a research hotspot in the structural vibration control field, and it has a great of significance to develop a kind of the self-adaptive vibration control technology. This project proposes a novel self-adaptive electromagnetic shunt damping (SA-EMSD) vibration control method, where the parameters of the negative impedance shunt circuit can adapt to optimize online as the change of the system parameters and the variation of the external loads. In order to realize the self-adaptive, high effectiveness and broadband vibration control, this project aims to carry out the following aspects of the research based on the mechanic-electromagnetic-control integrated designation method. (1) The controller of the SA-EMSD is designed and theoretically analyzed. The governing equation of the proposed method is established. The relationship between shunt and the control system parameters is derived. The broadband vibration control, self-sensing and self-adaptive characteristics of the SA-EMSD are discussed. (2) The optimization model of the self-feedback shunt is designed. The optimization function is derived. The variation law between shunt and system parameters is obtained. (3) The adaptive shunt circuit is designed. The experimental system is designed and setup. The theoretical and optimization model are experimentally verified. The project enriches EMSD vibration control method, and provides the theoretical and technical basis for the application of the self-adaptive vibration control.

电磁分支电路阻尼已是智能结构振动控制技术领域的研究热点，发展一种可随系统参数变化，并进行自适应在线调节的电磁分支电路阻尼振动控制方法具有重要意义。本项目提出一种自适应电磁分支电路阻尼振动控制方法，基于力-电-磁-控制一体化设计思路，以实现结构的自适应、高效及宽频带振动控制为目的，项目拟具体开展以下研究：（1）设计自适应负阻抗式电磁分支电路控制器，建立控制方程，推导并获得分支电路参数与系统参数的关系式，揭示所提出方法的宽频带、自传感和自适应振动控制特性。（2）设计自反馈式负阻抗分支电路优化方案，建立优化目标函数，结合智能优化算法，获得分支电路参数随载荷及系统参数的变化规律。（3）研制自适应负阻抗分支电路，设计试验系统，开展理论建模、仿真和优化设计的试验验证。本项目丰富了电磁分支电路阻尼振动控制方法，为自适应振动控制的应用提供理论和技术基础。

电磁分支电路阻尼已是智能结构振动控制技术领域的研究热点，研究了一种可随系统参数变化，并进行自适应在线调节的电磁分支电路阻尼振动控制方法具有重要意义。本项目提出了一种自适应电磁分支电路阻尼振动控制方法，设计了一种自适应负阻抗式电磁分支电路控制器，建立了控制方程，推导并获得了分支电路参数与系统参数的关系式，揭示了自适应负阻抗式电磁分支电路阻尼振动方法的宽频带、自传感和自适应振动控制特性；设计了自反馈式负阻抗分支电路优化方案，建立了优化目标函数，结合智能优化算法，获得了分支电路参数随载荷及系统参数的变化规律；研制了自适应负阻抗分支电路，设计了试验系统，开展了理论建模、仿真和优化设计的试验验证，实现了宽频带、自传感及自适应振动控制。本项目丰富了电磁分支电路阻尼振动控制方法，为自适应振动控制的应用提供理论和技术基础。