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LabVIEW磁流變液阻尼器的半主動閉環控制系統設計+源代碼+CAD圖紙

時間:2019-05-04 21:48來源:畢業論文
通過對理論分析和數值仿真的方法,首先要建立了懸臂梁的振動力學模型,然后對磁流變阻尼器的力學模型、減振系統動力學特性以及減振PID控制算法的設計與實現

摘要:磁流變液(MRF)是一種具有良好發展前景和工程應用價值的新型智能材料,在外加磁場作用下,會產生明顯的磁流變效應。使用磁流變液的磁流變阻尼器具有阻尼連續可調、動態范圍寬、響應速度快、功耗低等特點,現已成為振動控制中非常有應用前景的智能器件。在安裝有磁流變阻尼器的減振系統中,通過改變阻尼器的阻尼力大小(即通過改變對磁流變液阻尼器輸入電流的大小),可以實現系統的減振控制。振動控制在現代工程中應用十分廣泛,很多工程因為沒有考慮共振效應而失敗,造成經濟上的損失和人員傷亡。因此,其研究價值不言而喻。磁流變液阻尼器減振控制就是一種半主動控制技術。基于磁流變液特性的突出優點,并通過大量的實踐中的應用,發現基于磁流變阻尼器的半主動控制展現出了很好的減振效果。本文通過對理論分析和數值仿真的方法,首先要建立了懸臂梁的振動力學模型,然后對磁流變阻尼器的力學模型、減振系統動力學特性以及減振PID控制算法的設計與實現,進行了研究。然后通過MATLAB進行了仿真,最后得到了仿真結果。結果表明:可以通過PID控制有效地控制磁流變液阻尼器輸入電流來間接控制對懸臂梁的減振。35157
畢業論文關鍵詞: 磁流變液阻尼器;懸臂梁;減振;PID控制;MATBAL仿真
Semi Active Closed-loop Control System Based on Magnetorheological Fluid Damper
Abstract: Magnetorheological dampers are continuously adjustable damping, wide dynamic range, fast response, low power consumption, it has become a very promising application of smart devices in vibration control. In the installation of a damping system of magneto rheological damper, by changing the size of the damper force (that means it is by changing the magnetorheological fluid damper input current), the system can achieve the damping control. The vibration control is widely used in modern engineering, because of the failure of the resonance effect, the economic loss and the casualties caused by the casualties are not considered. Therefore, its research value is self-evident. The damping control of MR damper is a semi-active control technology. Based on the outstanding merits of the magnetic rheological fluid, and through the application of a lot of practice, it is found that the semi-active control based on MR damper has a good effect on vibration reduction. In this paper, using the method of theoretical analysis and numerical simulation, the first vibration mechanical model of cantilever beam is established, the mechanical models of

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magnetorheological damper, damping system dynamic characteristics and design of vibration control algorithm and realization are studied. Then,this graduation design is simulated by MATLAB, and the simulation results are obtained.  The results show that the vibration damping of the cantilever beam can be controlled effectively through the PID control and the input current of the damper is controlled effectively
Keywords: Magnetorheological fluid damper;Cantilever beam;Damping;PID control;MATBAL Simulation
目  錄
1 緒論    1
1.1 課題開展的依據    1
      1.2國內外對磁流變液阻尼器的研究及應用    1
      1.3 基于磁流變液阻尼器的半主動閉環控制系統的研究現狀    2
  1.4振動控制減振技術的研究    2
        1.4.1振動控制減振技術的研究背景    2
        1.4.2  被動控制  ….2
        1.4.3 主動控制  ….2
1.4.4 半主動控制…3
        1.4.5 混合控制  …3 LabVIEW磁流變液阻尼器的半主動閉環控制系統設計+源代碼+CAD圖紙:http://www.aftnzs.live/zidonghua/20190504/32981.html
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