Analysis of the vibration attenuation of rotors supported by magnetorheological squeeze film dampers as a multiphysical finite element problem

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• 作者：Petr Ferfecki^a ; ^b ; ^{petr.ferfecki@vsb.cz} ; Jaroslav Zapoměl^b ; ^c ; ^{zapomel@it.cas.cz} ; ^{jaroslav.zapomel@vsb.cz} ; Jan Kozá ; nek^c ; ^{kozanek@it.cas.cz}
• 关键词：Magnetorheological squeeze film dampers ; Magnetorheological oils ; Closed form formulas ; Fitting the coefficients ; Multiphysical problem ; Rotor vibration attenuation ; Damping efficiency
• 刊名：Advances in Engineering Software
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：104
• 期：Complete
• 页码：1-11
• 全文大小：3844 K
• 卷排序：104

文摘

The development of a new mathematical model of a flexible rotor supported by magnetorheological squeeze film dampers, working out the methodology for derivation of semi-analytical relations for determination of magnetic induction in the damper gap, specification of the extent of their validity and applicability, and learning more on the influence of the magnetorheological damping devices on the lateral vibration attenuation of flexible rotors are the principal contributions of the presented article. The worked out approach to investigation of rotors supported by magnetorheological dampers speeds up the simulations. According to meaning of the authors, it is novel and has a strong potential of practical applications.