Study on key factors of mistuned vibration for blade-disk system of some-stage compressor

李宏新; 袁惠群; 张连祥

doi:10.13224/j.cnki.jasp.2017.05.008

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Study on key factors of mistuned vibration for blade-disk system of some-stage compressor

更新时间：2026-07-07

- Study on key factors of mistuned vibration for blade-disk system of some-stage compressor
- Vol. 32, Issue 5, Pages: 1082-1090(2017)
- 作者机构：
  
  1. 中国航空发动机集团有限公司沈阳发动机研究所,沈阳,110015
  2. 北京航空航天大学能源与动力工程学院,北京,100191
  3. 东北大学理学院,沈阳,110004
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2017.05.008
  CLC：
- Published：2017
- 稿件说明：
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李宏新, 袁惠群, 张连祥. 某级压气机叶盘系统失谐振动关键因素研究[J]. 航空动力学报, 2017, 32(5): 1082-1090.

doi: 10.13224/j.cnki.jasp.2017.05.008
李宏新, 袁惠群, 张连祥. 某级压气机叶盘系统失谐振动关键因素研究[J]. 航空动力学报, 2017, 32(5): 1082-1090. DOI： 10.13224/j.cnki.jasp.2017.05.008.

doi: 10.13224/j.cnki.jasp.2017.05.008 DOI：

摘要

基于某级压气机叶片盘扇区，建立考虑非线性榫接触叶片盘有限元模型，应用提出的自由界面子结构-固定界面预应力模态综合超单元近似分析方法，并基于提出的围绕实验与有限元分析拟合出线性表达式的失谐参数识别方法，探究失谐关键因素对于叶盘系统振动的影响.结果表明，非线性榫接触不可忽略，提出的超单元法精度达到3.07%，满足要求.同时也表明，叶片平均频率、叶盘刚度比与频率转向对于失谐叶盘系统振动幅值、共振频率及应变能等参数均有一定影响.

Abstract

Based on the blade disk basic sector of certain stage compressor

blade disk finite element model considering non-linear tenon contact was established

free-interface substructure-fixed interface prestressed modal synthesis super element approximate analysis method was proposed

meanwhile

mistuned parameters recognition method of linear expression was fitted based on the blade static-frequency test and dichotomy combined with finite element analysis

exploring the effects of mistuning key factors on blade disk vibration. Results show that the non-linear tenon contact cannot be neglected

and the accuracy of super element method is 3.07%

so the proposed method meets the requirement. In addition

blades mean frequency

disk stiffness ratio and frequency veering have an effect on mistuned bladed disks vibration amplitude

resonance frequency and strain energy and other parameters.

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Related Institution

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

Collaborative Innovation Center for Advanced Aero-Engine

Department of Mechanics, School of Mechanical Engineering, Tianjin University

Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control

College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

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