| Citation: | PENG Tai, WANG Yanrong, LI Di, et al. Free vibration test of damping characteristics for model blade with underplatform damper[J]. Journal of Aerospace Power, 2025, 40（9）：20230742 doi: 10.13224/j.cnki.jasp.20230742
|
An experimental system based on damped free vibrations was developed. By applying loads to the blade model to induce a first-order bending mode, followed by releasing the load to create first-order bending vibrations, a comprehensive damping ratio characteristic curve could be acquired from a single test. This was achieved by monitoring and analyzing the time-domain signals of strains and accelerations at crucial positions. Experimental findings showed that the damping ratio curves obtained through experiments aligned closely with those generated through numerical simulations. Furthermore, the maximum damping ratio was kept constant despite of variations in the damper’s inertial load. Additionally, dampers with different contact areas had similar critical damping ratios. However, the damping effect was found to be positively correlated with the length of the shank.
| [1] |
王延荣, 田爱梅. 叶/盘结构振动分析中几个问题的探讨[J]. 推进技术, 2002, 23(3): 233-236. WANG Yanrong, TIAN Aimei. Several issues in the implementation of vibration analysis of bladed disk[J]. Journal of Propulsion Technology, 2002, 23(3): 233-236. (in Chinese doi: 10.3321/j.issn:1001-4055.2002.03.016
WANG Yanrong, TIAN Aimei. Several issues in the implementation of vibration analysis of bladed disk[J]. Journal of Propulsion Technology, 2002, 23(3): 233-236. (in Chinese) doi: 10.3321/j.issn:1001-4055.2002.03.016
|
| [2] |
张大义, 张嵩, 付俭伟, 等. 转子叶片缘板阻尼结构设计方法[J]. 航空动力学报, 2018, 33(4): 961-968. ZHANG Dayi, ZHANG Song, FU Jianwei, et al. Design method for the under platform damper of rotor blade[J]. Journal of Aerospace Power, 2018, 33(4): 961-968. (in Chinese
ZHANG Dayi, ZHANG Song, FU Jianwei, et al. Design method for the under platform damper of rotor blade[J]. Journal of Aerospace Power, 2018, 33(4): 961-968. (in Chinese)
|
| [3] |
FERHATOGLU E, ZUCCA S. Determination of periodic response limits among multiple solutions for mechanical systems with wedge dampers[J]. Journal of Sound and Vibration, 2021, 494: 115900. doi: 10.1016/j.jsv.2020.115900
|
| [4] |
DENIMAL E, WONG C, SALLES L, et al. On the efficiency of a conical underplatform damper for turbines[J]. Journal of Engineering for Gas Turbines and Power, 2021, 143(2): 021020. doi: 10.1115/1.4049665
|
| [5] |
GASTALDI C, BERRUTI T M, GOLA M M. A novel test rig for friction parameters measurement on underplatform dampers[J]. International Journal of Solids and Structures, 2020, 185: 170-181.
|
| [6] |
GASTALDI C, BERRUTI T M. Direct measurement of the damping and stiffening capabilities of cylindrical underplatform dampers[J]. Mechanical Systems and Signal Processing, 2020, 139: 106632. doi: 10.1016/j.ymssp.2020.106632
|
| [7] |
PANNING L, POPP K, SEXTRO W, et al. Asymmetrical underplatform dampers in gas turbine bladings: theory and application[R]. Vienna, Austria: ASME Turbo Expo 2004: Power for Land, Sea, and Air, 2008.
|
| [8] |
GASTALDI C, BERRUTI T M, GOLA M M. Best practices for underplatform damper designers[J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2018, 232(7): 1221-1235. doi: 10.1177/0954406217753654
|
| [9] |
PESARESI L, SALLES L, JONES A, et al. Modelling the nonlinear behaviour of an underplatform damper test rig for turbine applications[J]. Mechanical Systems and Signal Processing, 2017, 85: 662-679. doi: 10.1016/j.ymssp.2016.09.007
|
| [10] |
PESARESI L, STENDER M, RUFFINI V, et al. DIC measurement of the kinematics of a friction damper for turbine applications[M]//Dynamics of Coupled Structures: Volume 4. Cham, US: Springer International Publishing, 2017: 93-101.
|
| [11] |
ZHANG Dayi, GAO Bin, HONG Jie, et al. Experimental investigation on dynamic response of flat blades with underplatform dampers[J]. Chinese Journal of Aeronautics, 2019, 32(12): 2667-2678. doi: 10.1016/j.cja.2019.04.022
|
| [12] |
FERHATOGLU E, GASTALDI C, BOTTO D, et al. An experimental and computational comparison of the dynamic response variability in a turbine blade with under-platform dampers[J]. Mechanical Systems and Signal Processing, 2022, 172: 108987. doi: 10.1016/j.ymssp.2022.108987
|
| [13] |
FERHATOGLU E, ZUCCA S. On the non-uniqueness of friction forces and the systematic computation of dynamic response boundaries for turbine bladed disks with contacts[J]. Mechanical Systems and Signal Processing, 2021, 160: 107917. doi: 10.1016/j.ymssp.2021.107917
|
| [14] |
HOFFMANN T, PANNING-VON SCHEIDT L, WALLASCHEK J. Measured and simulated forced response of a rotating turbine disk with asymmetric and cylindrical underplatform dampers[J]. Journal of Engineering for Gas Turbines and Power, 2020, 142(5): 051002. doi: 10.1115/1.4045337
|
| [15] |
毛辛男, 王延荣. 一种基于模态的叶片缘板阻尼器减振设计方法[J]. 推进技术, 2018, 39(6): 1361-1368. MAO Xinnan, WANG Yanrong. An efficient design method of an underplatform damper for suppression of blade vibration in a given eigen-mode[J]. Journal of Propulsion Technology, 2018, 39(6): 1361-1368. (in Chinese
MAO Xinnan, WANG Yanrong. An efficient design method of an underplatform damper for suppression of blade vibration in a given eigen-mode[J]. Journal of Propulsion Technology, 2018, 39(6): 1361-1368. (in Chinese)
|
| [16] |
GAO S M, WANG Y R, SUN Z W. An energy method for assessing the damping of turbine blade underplatform damper and forced response verification[R]. Virtual: ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, 2020.
|
| [17] |
刘杰, 王延荣. 转子叶片缘板阻尼器设计分析[J]. 推进技术, 2020, 41(12): 2827-2833. LIU Jie, WANG Yanrong. Design analysis of a rotor blade underplatform damper[J]. Journal of Propulsion Technology, 2020, 41(12): 2827-2833. (in Chinese
LIU Jie, WANG Yanrong. Design analysis of a rotor blade underplatform damper[J]. Journal of Propulsion Technology, 2020, 41(12): 2827-2833. (in Chinese)
|
| [18] |
石霖. 涡轮转子叶片缘板阻尼减振特性分析及实验方案设计[D]. 北京: 北京航空航天大学, 2022. SHI Lin. Analysis of under-platform damping characteristics of turbine blade and design of experimental scheme[D]. Beijing: Beihang University, 2022. (in Chinese
SHI Lin. Analysis of under-platform damping characteristics of turbine blade and design of experimental scheme[D]. Beijing: Beihang University, 2022. (in Chinese)
|
| [19] |
彭泰. 叶片缘板阻尼特性分析及试验研究[D]. 北京: 北京航空航天大学, 2023. PENG Tai. Analysis and experimental study on damping characteristics of underplatform damper[D]. Beijing: Beihang University, 2023. (in Chinese
PENG Tai. Analysis and experimental study on damping characteristics of underplatform damper[D]. Beijing: Beihang University, 2023. (in Chinese)
|
DownLoad:
