Influential parameters of rotating blades with under platform dampers

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (10) : 221-227.

ZHANG Dayi1,2, YANG Cheng1, XIA Ying1, FU Jianwei1, HONG Jie1,2

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Abstract

According to the configuration design requirements of the under platform damper(UPD) in aero engines, the nonlinear stiffness and damping due to frictional contact were studied based on a simplified model of UPD.The nonlinear vibration responses of the blade with different design parameters were calculated by adopting the distributed contact model which takes account of the distributed normal load and partial slip.The influences of the design parameters of UDP on the vibration characteristics of the blade were investigated.The results indicate that the UPD mass is the pivotal parameter in the design of UPD, and it is supposed to determine it by the optimal pressing load.

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ZHANG Dayi1,2, YANG Cheng1, XIA Ying1, FU Jianwei1, HONG Jie1,2. Influential parameters of rotating blades with under platform dampers[J]. Journal of Vibration and Shock, 2019, 38(10): 221-227

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