ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper presents the development of a variable stiffness and damping isolator usingmagnetorheological (MR) fluid technology. The MR fluid isolator is composed of two variablevolume rubber bladder filled with MR fluid, a pipe and a MR valve connecting them. One of thebladders supports disturbance force and the MR fluid flows between two bladders because of thevariation of bladder volume due to deformation. The shear stress of the MR fluid in MR valve isvaried by an applied magnetic field, which thereby varies the characteristics of the isolator, such asits stiffness and damping. A mathematical model of the isolator was derived, and a prototype of theMR fluid bladder spring was fabricated and its dynamic behavior was measured in vibration forcefor a wide range of frequencies under various applied magnetic fields. The parameters of the modelunder various magnetic fields were calculated and the bladder dynamic performances wereevaluated. A non-resonant control was employed to minimize the vibration amplitude of the system.Numerical simulation results indicated that the semiactive control system produced much betterisolation performance than a passive system
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.157.pdf
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