本文選題：磁流變液 + 圓盤式　； 參考：《齊魯工業(yè)大學(xué)》2012年碩士論文

【摘要】：磁流變液(Magnetorheological Suspensions,MRS)屬于可控流體,可以看成是電流變液的磁模擬,沒有外加磁場作用時,它從外觀上表現(xiàn)為牛頓流體特性；然而在外加磁場作用下,在幾毫秒時間內(nèi)其流體外觀形態(tài)和性能會迅速發(fā)生改變,表觀粘度系數(shù)大幅增加,液體的流動表現(xiàn)出Bingham塑性體行為,具有粘性和塑性特性；當外加磁場強度發(fā)生變化時,其屈服應(yīng)力也隨著發(fā)生變化。且這種變化是迅速、連續(xù)、可逆、容易被控制的,國內(nèi)外眾多學(xué)者和工業(yè)界科學(xué)家都對其產(chǎn)生了廣泛的興趣,在工程領(lǐng)域具有廣泛的應(yīng)用前景。 在這一特性基礎(chǔ)上設(shè)計的磁流變液制動器具有制動平穩(wěn)、響應(yīng)速度快、能耗低等優(yōu)點,已經(jīng)在工程領(lǐng)域得到了廣泛的應(yīng)用,本論文設(shè)計的磁流變液制動器是一種利用磁流變液剪切應(yīng)力來進行制動的裝置,當外加磁場發(fā)生變化時,制動力矩也會隨著改變。本文從理論著手,通過實驗的方式研究了磁流變液在制動器中的應(yīng)用：本文首先對磁流變液的材料及流變特性以及本課題的研究內(nèi)容及意義進行了介紹,接著介紹了制動器的工作原理,磁流變液制動器的工作模式及特點；并著重介紹了剪切式制動器的工作原理,并根據(jù)以上知識,設(shè)計了磁流變液制動器,其中包括磁路設(shè)計和圓盤式制動器結(jié)構(gòu)設(shè)計,最后對設(shè)計的磁流變液制動器進行了實驗研究。 最后在前文基礎(chǔ)上總結(jié)全文,提出了論文的創(chuàng)新點及以后將要進行的的工作。
[Abstract]:Magnetorheological SuspensionsMRS (MRS) is a controllable fluid, which can be regarded as a magnetic simulation of electrorheological fluid. When there is no external magnetic field, it appears to be Newtonian fluid in appearance; however, under the action of external magnetic field, it is characterized by Newtonian fluid.In a few milliseconds, the appearance and properties of the fluid will change rapidly, the apparent viscosity coefficient will increase greatly, and the liquid flow will exhibit the Bingham plastic body behavior, with viscosity and plasticity, and when the applied magnetic field intensity changes,The yield stress also changes with the change of yield stress.This change is rapid, continuous, reversible and easy to be controlled. Many scholars and industrial scientists at home and abroad have a wide range of interests in the field of engineering and have a wide range of application prospects.Based on this characteristic, the magnetorheological fluid brake, which has the advantages of stable braking, fast response speed and low energy consumption, has been widely used in the engineering field.The magnetorheological brake designed in this paper is a kind of braking device which uses the shear stress of the magnetorheological fluid. When the applied magnetic field changes, the braking torque will also change.In this paper, the application of MRF in brake is studied by means of experiments. Firstly, the material and rheological characteristics of MRF, and the research content and significance of this subject are introduced.Then the working principle of the brake, the working mode and characteristics of the MRF brake are introduced, and the working principle of the shear brake is emphatically introduced, and according to the above knowledge, the MRF brake is designed.It includes magnetic circuit design and disk brake structure design. Finally, the design of MRF brake is studied experimentally.Finally, on the basis of the previous summary, the innovation of the paper and the work to be done in the future are put forward.
【學(xué)位授予單位】：齊魯工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH134;TB381

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