Fast prototyping method for the active vibration damping system of mechanical structures

Zdzislaw Gosiewski; Andrzej Piotr Koszewnik

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Fast prototyping method for the active vibration damping system of mechanical structures

机译：机械结构主动减振系统的快速成型方法

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A fast prototyping method for the active vibration control system of 3D mechanical structures is presented in the paper. To control such system piezo-stack actuators were used. The subsequent steps of the prototyping procedure are explained for the bar structure as an example. The Finite Element Modeling (FEM) approach was used to find the quasi-optimal location of piezo-stacks in the structure. Next, the structure with inbuilt piezo-actuators was designed and tested in the laboratory. The more accurate mathematical model of the structure dynamics was obtained as a result of the identification procedure. The mathematical model was reduced and decoupled to change the Two Input Two Output (TITO) system into two Single Input Single Output (SISO) systems. Such approach allowed us to design simple control laws with the aid of the computer simulation procedure. In the last chapter the tests on the laboratory stand of the active vibration control system with local Proportional-Derivative (PD) controllers are described. Experimental results have proved that these PD controllers work good increasing the damping level. Additional damping causes an excellent vibration reduction of the whole mechanical structure.

机译：本文提出了一种用于3D机械结构主动振动控制系统的快速原型方法。为了控制这种系统，使用了压电叠层致动器。以条形结构为例，说明了原型制作过程的后续步骤。有限元建模（FEM）方法用于查找结构中压电堆栈的准最佳位置。接下来，在实验室中设计并测试了内置压电执行器的结构。通过识别过程获得了更精确的结构动力学数学模型。简化并解耦了数学模型，将“两输入两输出”（TITO）系统更改为“两输入单输出”（SISO）系统。这种方法使我们能够借助计算机仿真程序来设计简单的控制律。在上一章中，介绍了在具有本地比例微分（PD）控制器的主动振动控制系统的实验室支架上进行的测试。实验结果证明，这些PD控制器可以很好地提高阻尼水平。附加的阻尼可大大降低整个机械结构的振动。

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来源
《Mechanical systems and signal processing》 |2013年第1期|136-151|共16页
作者
Zdzislaw Gosiewski; Andrzej Piotr Koszewnik;
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作者单位

Faculty of Mechanical Engineering, Department on Automatics and Robotics, Bialystok Technical University, ul. Wiejska 45C, 15-351 Bialystok, Poland;

Faculty of Mechanical Engineering, Department on Automatics and Robotics, Bialystok Technical University, ul. Wiejska 45C, 15-351 Bialystok, Poland;

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正文语种 eng
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关键词
Active vibration control; Piezo-stack actuators; Identification; Decoupled open-loop system; Active structure;

机译：主动振动控制;压电堆栈执行器;鉴定;解耦开环系统;主动结构;

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Fast prototyping method for the active vibration damping system of mechanical structures

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