Analysis of effect factors on damping characteristics for underplatform dampers

阳刚; 周标; 臧朝平; 陈俊杰

doi:10.13224/j.cnki.jasp.2019.01.014

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Analysis of effect factors on damping characteristics for underplatform dampers

更新时间：2026-07-07

- Analysis of effect factors on damping characteristics for underplatform dampers
- Vol. 34, Issue 1, Pages: 115-124(2019)
- 作者机构：
  
  南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2019.01.014
  CLC：
- Published：2019
- 稿件说明：
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阳刚, 周标, 臧朝平, 陈俊杰. 缘板阻尼结构减振特性的影响因素分析[J]. 航空动力学报, 2019, 34(1): 115-124.

doi: 10.13224/j.cnki.jasp.2019.01.014
阳刚, 周标, 臧朝平, 陈俊杰. 缘板阻尼结构减振特性的影响因素分析[J]. 航空动力学报, 2019, 34(1): 115-124. DOI： 10.13224/j.cnki.jasp.2019.01.014.

doi: 10.13224/j.cnki.jasp.2019.01.014 DOI：

摘要

基于简化的叶片-缘板阻尼结构模型，开展缘板阻尼结构干摩擦阻尼减振特性的计算分析。阐述了谐波平衡法预测叶片响应的基本原理，并提出了一种基于离散傅里叶变换的雅克比矩阵快速计算方法，结果表明：该方法能够实现谐波平衡法的加速，并使叶片响应计算效率提高8倍以上。在此基础上，重点探究了离心力、缘板阻尼块质量、激振力、缘板倾斜角及缘板阻尼块转动等因素对叶片响应特性的影响，并总结上述关键设计参数对叶片-缘板阻尼结构减振特性的影响规律。

Abstract

Damping performance of the underplatform damper was numerically investigated on the basis of a simplified model of blades with an underplatform damper. The harmonic balance method was employed to predict the blade response in the frequency domain. A simple expression of the Jacobian matrix by means of discrete Fourier transform was proposed

allowing acceleration of the harmonic balance method. Result showed that

the computational efficiency was improved more than 8 times in terms of blade response prediction. The impacts of key parameters

including centrifugal force

damper mass

excitation level

underplatform angle and the rolling motion of the damper

were thoroughly investigated.

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Related Author

Qian GAO

Yaguang WU

Yu FAN

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WEN Wei

臧朝平

周标

Related Institution

Beijing Key Laboratory of Aero⁃Engine Structure and Strength， Beijing University of Aeronautics and Astronautics

School of Energy and Power Engineering， Beijing University of Aeronautics and Astronautics

北京动力机械研究所激光推进及其应用国家重点实验室

南京航空航天大学能源与动力学院航空发动机热环境与热结构工业和信息化部重点实验室

中国空气动力研究与发展中心科技部

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