ISSN:
1013-9826
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:
The response time of a rotor system on a magnetorheological(MR) fluid squeeze filmdamper was measured experimentally. The effects of rotating speed, step voltage and rotor imbalanceon the response time were dealt with. It is shown that the MR fluid damper rotor system is asecond-order dynamic system. The rapid response time defined by the time taken for the vibrationamplitude to rise (fall) from 10 % (or 90%) to 90 % (or 10%) of the vibration amplitude differencebetween the initial and final states is 0.05~0.7s in applying a step voltage and 0.01~1.225s in droppinga step voltage, respectively. It is impossible for the response time to be within a few milliseconds. Theresponse time is determined not only by magnetic field strength, MR fluid specification, rotationalspeed, but operation mode of the power supply. There is a zero initial delay time at either applying ordropping the step voltage, which is caused by the magnetizing or de-magnetizing process
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.1085.pdf
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