TY - GEN
T1 - Response of two-disk rotor with squeeze film dampers and its variation with parameters
AU - Sun, Tao
AU - Qin, Weiyang
AU - Jiao, Xudong
PY - 2012
Y1 - 2012
N2 - This paper investigated the variation of dynamical response of a low pressure rotor in turbo-shaft engine with its system parameters. Based on the model of low pressure rotor, a dynamical simplified model of two-disk rotor with Squeeze Film Damper at each end was built. Its motion equations were derived. The numerical method was applied to solve the 12-dimensions differential equations. The influence of some parameters, e.g., rotating speed, eccentricity and its phase angle, mass ratio of two disks, were analyzed. From simulation results, it can be seen that when phase difference of two disks' eccentricity is π, the two disks have their minimum vibration amplitude respectively. When their phase is identical, their vibration responses reach maximum values. The larger the mass of mid-span disk is, the larger the vibrations of two disks are. When mass of mid-span is lesser than that of overhung rotor, the response of system will decrease.
AB - This paper investigated the variation of dynamical response of a low pressure rotor in turbo-shaft engine with its system parameters. Based on the model of low pressure rotor, a dynamical simplified model of two-disk rotor with Squeeze Film Damper at each end was built. Its motion equations were derived. The numerical method was applied to solve the 12-dimensions differential equations. The influence of some parameters, e.g., rotating speed, eccentricity and its phase angle, mass ratio of two disks, were analyzed. From simulation results, it can be seen that when phase difference of two disks' eccentricity is π, the two disks have their minimum vibration amplitude respectively. When their phase is identical, their vibration responses reach maximum values. The larger the mass of mid-span disk is, the larger the vibrations of two disks are. When mass of mid-span is lesser than that of overhung rotor, the response of system will decrease.
KW - Eccentricity
KW - Phase
KW - Rotating speed
KW - Squeeze film damper
KW - Two-disk rotor
UR - http://www.scopus.com/inward/record.url?scp=81055129936&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.117-119.369
DO - 10.4028/www.scientific.net/AMM.117-119.369
M3 - 会议稿件
AN - SCOPUS:81055129936
SN - 9783037852804
T3 - Applied Mechanics and Materials
SP - 369
EP - 372
BT - Materials and Computational Mechanics
T2 - 2011 International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2011
Y2 - 18 November 2011 through 20 November 2011
ER -