Development of Structural Control Mechanism using Variable Damper

本课题在研制的直流电动机发电机式阻尼器的基础上，建立了其力学模型，并将其称为机电阻尼器。这里开发的装置是一个可调阻尼器，配有电流控制单元。最近组装的混合结构控制实验系统（HSCES）不仅用于研究已开发的结构控制效率，还用于研究油变阻尼器的结构控制效率。该系统配备了高速数字信号处理（DSP）单元，为研究不同类型的结构模型和控制装置提供了广泛的灵活性。HSCES可用于测试不同类型的结构对非平稳激励的响应，并研究实际尺寸控制装置在减小结构响应方面的效率。该系统的基本特征是能够通过DSP单元模拟特定结构和控制装置的特征。在该系统中，控制信号输出单元、控制器单元和结构模型单元相互连接。该系统由五个单元组成：地震波产生单元、响应分析单元、控制单元、数字滤波单元、控制装置单元。HSCES的主要优点是既能对实际模型进行测试，又能同时对数值模拟模型进行分析。由于我们可以实时计算结构和控制装置的响应，因此可以同步输入和输出信号。即使我们不测试整个结构模型，我们也可以进行振动控制实验。也就是说，我们可以利用DSP模拟模型的响应运动，重现各种实验条件。该系统通过实时数值计算，能较好地再现信号传输的时滞。我们也可以很容易地通过替换其模拟模型来改变要测试的特定结构，一个新的对象模型/ DSP代码，这样就可以考虑大型结构，高激励水平或两者兼而有之。少

In this project we develop an electric generator type damper with DC motor (named as a mechano-electric-damper) and its mechanical model based on the experimental dynamic behavior of developed damper. The device developed here is an adjustable damper equipped with a electric current control unit.The recently assembled HSCES (Hybrid Structural Control Experimentation System) is used to investigate structural control efficiency not only the developed but oil variable dampers. The system is equipped with high speed digital signal processing (DSP) units that allow wide flexibility for the investigation of different types of structural models and control devices. The HSCES can be used to test different types of structures responses to non-stationary excitations and to study the efficiency of real-size control devices in reducing structural response. The basic characteristic of the system is its ability to simulate the features of a particular structure and control device by DSP units. In th … More is system the control signal output unit, controller unit and structural model unit are interconnected. The system consists of five units : a seismic wave generating unit, response analysis unit, control unit, digital filter unit, controller device unit.The major advantage of the HSCES is that it not only tests of real models but analyzes numerically simulated models simultaneously. Because we can compute the response of the structure and the control device in real time it is possible to synchronize the input and output signal. Even if we do not test an entire structural model, we can perform vibration control experiments. That is, we can simulate the response motion of the model by using DSP and reproduce various experimental conditions. This system can properly reproduce the time lag of the signal transmission by using real-time numerical computation. We can also very easily change the particular structure to be tested by substituting for its simulated model, a new object model/code for the DSP, so that it is possible to consider large structures, high excitation levels or both. Less