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为简化磁流变控制系统并提高其可靠性,该文将压电集能技术与磁流变控制技术相融合,提出了一种自适应磁流变控制系统。根据压电效应原理,压电集能装置可以将被控结构的振动能转化为可驱动磁流变阻尼器工作的电能,且被控结构振动愈大,压电集能装置收集的电能愈多,磁流变阻尼器能够产生的阻尼力也就越大,因此该文提出的控制系统具有良好的自适应性。结合滨州黄河大桥N26号斜拉索和1个5层隔震结构模型,该文对自适应控制系统的设计过程进行了推衍,并通过MATLAB仿真对比了不同控制方法下结构的反应。仿真结果说明,所提自适应控制系统具有良好的控制效果。
In order to simplify the control system of magnetorheological fluid and improve its reliability, this paper combines piezoelectric energy-gathering technology with magneto-rheological control technology, and proposes an adaptive magnetorheological fluid control system. According to the principle of piezoelectric effect, the piezoelectric energy-collecting device can convert the vibration energy of the controlled structure into electrical energy that can drive the working of the magnetorheological damper, and the greater the vibration of the controlled structure, the more electric energy collected by the piezoelectric energy-collecting device , The greater the damping force that the MR damper can generate, the control system proposed in this paper has a good adaptability. Combined with N26 diagonal cable and a 5-story isolation structure model of Binzhou Yellow River Bridge, this paper deduces the design process of adaptive control system and compares the structure responses under different control methods through MATLAB simulation. Simulation results show that the proposed adaptive control system has a good control effect.