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ANSYS泡沫金屬磁流變減振器的優化設計+CAD圖紙

時間:2018-04-05 21:14來源:畢業論文
泡沫金屬具有緩沖吸振的性能,將其與磁流變液減振器結合將產生附加的緩沖吸振效果。與傳統磁流變減振器相比,該種減振器具有成本低和壽命長的特點。但是,通過理論計算發現該

摘要:磁流變減振器是一種以磁流變液作為其工作介質的新型阻尼可調器,因其具有功耗小、響應迅速、可控性強、阻尼力連續可調等優點,近年來在機械、汽車以及土木工程等領域的振動控制方面得到了廣泛的應用。然而常規的磁流變減振器主要用于較低頻率、長行程,但對于稍高頻率振動的減振效率并不理想,這主要是因為環狀縫隙較小,磁流變液從一腔流到另一腔需要較長的時間,所以不適于高頻振動的控制,并且常規減振器的可控阻尼較小,為使磁流變減振器能夠用于稍高頻率的振動控制和獲得較大的阻尼力,可以采取增加阻尼孔數目的辦法。泡沫金屬具有多孔且空隙能夠達到很小的特點,若使磁流變液通過泡沫金屬的孔隙,將會產生很大的阻尼力。另外,泡沫金屬具有緩沖吸振的性能,將其與磁流變液減振器結合將產生附加的緩沖吸振效果。與傳統磁流變減振器相比,該種減振器具有成本低和壽命長的特點。但是,通過理論計算發現該種減振器阻尼力較低。為了提高泡沫金屬磁流變減振器的性能,本課題對其進行優化設計。20500
乐彩网3d试机号分析预测關鍵詞: 磁流變減振器;泡沫金屬;磁流變液;ANSYS;磁場仿真;優化設計
Optimization design of metal foam  magnetorheological absorber
Abstract: Magnetorheological(MR) absorber is a new adjustable MR damper with MR fluid serving as carrying liquid, and because of its low power consumption, fast response, controllable, continuously adjustable damping force and so on, in recent years, (MR) absorber vibration has been widely used in control machinery, automotive and civil engineering and other fields. However, the conventional magnetorheological absorber is mainly used for low frequency, long trip, but for a slightly higher frequency of vibration damping efficiency is not satisfactory, mainly because of the smaller annular gap, magneto-rheological fluid from one chamber flowing to the other chamber takes a long time, so it is not suitable for high-frequency vibration control, and controllable conventional shock absorber damping is smaller, magnetorheological absorbers able to make for a slightly higher frequency and vibration control the damping force is larger, the hole can be taken to increase the number of the damping solution. Metal foam has some characteristics that it is porous and its voids is small, when the magneto-rheological fluid flow through the pores of the metal foam, a large damping force will be generated. In addition, tMetal foam has performance of cushioning and vibration absorption, combined with its magnetorheological fluid absorber will produce additional shock absorbing cushioning effect. Compared with conventional magnetorheological absorber, the kind of absorber with characteristics of low cost and long life. However, by theoretical calculations found that the damping force of this kind of absorber is lower.In order to improve the the performance of metal foam magnetorheological absorber, I will research this study to optimize the design. 源`自*六)維[論*文'網乐彩网3d试机号分析预测 www.tkscy.icu
Keywords: Magnetorheological (MR) absorber; Metal foam; MR fluid; Ansys; Magnetic field simulation; Optimization design
目錄
1 緒論    1
1.1 課題研究意義    1
1.2 本文的主要研究內容    2
2 泡沫金屬磁流變減振器    3
2.1 磁流變液阻尼器的發展    3
2.1.1 國內發展    3
2.1.2 國外發展    4
2.1.3 磁流變減振器的應用    5
2.2 磁流變減振器的工作模式    5
2.3 泡沫金屬磁流變減振器的提出    7
2.3.1 多孔泡沫金屬    7
2.3.2 泡沫金屬磁流變減振器的提出    8
2.4 泡沫金屬磁流變減振器與傳統磁流變液減振器對比    9 ANSYS泡沫金屬磁流變減振器的優化設計+CAD圖紙://www.tkscy.icu/jixie/20180405/12444.html
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