Research on Dynamic Characteristics of Blisk withSemi-Active Piezoelectric Damping

doi:10.13675/j.cnki.tjjs.190061

Journal of Propulsion Technology ›› 2020, Vol. 41 ›› Issue (4): 889-902.DOI: 10.13675/j.cnki.tjjs.190061

• Structure, Strength and Reliablity • Previous Articles Next Articles

Research on Dynamic Characteristics of Blisk withSemi-Active Piezoelectric Damping

1.Department of Systems Engineering,The First Academy of China Aerospace Science and Technology Corporation,Beijing 100076,China;2.School of Energy and Power Engineering,Beihang University,Beijing 100191,China;3.School of Material Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China

Published:2021-08-15

具有半主动压电阻尼的叶盘结构动力学特性研究

刘久周¹，李琳²，辛健强¹，董永朋^1,3，徐腾飞¹，屈强¹

1.中国航天科技集团公司第一研究院系统工程业务部,北京 100076;2.北京航空航天大学能源与动力工程学院,北京 100191;3.西北工业大学材料学院,陕西西安 710072

基金资助:
国家自然科学基金（51675022）。

Abstract

Abstract: To the problem of amplified vibration induced by the mistuning of the blisk in aero engine, the synchronized switch damping based on negative capacitor (SSDNC) is introduced, and a nonlinear component modal synthesis (NCMS) method in frequency domain is proposed to analyze the dynamic characteristics of the blisk with SSDNC. The results show that NCMS method has higher computational efficiency compared with the Newmark method, and meanwhile, has enough computational accuracy. SSDNC has effective vibration-suppression performance for multi-modes with one group of parameters, and SSDNC has significant superiority to suppress the vibration of the blisk under multi-engine-order excitation (the response can be suppressed 73% for the model used in this paper). The stochastic analysis turns out that the vibration-suppression performance of SSDNC is insensitive to the mistuning of the blisk and that of the electrical circuits.

Key words: Blisk;Synchronized switch damping;Nonlinearity;Component modal synthesis;Vibration suppression;Mistuning

摘要： 针对航空发动机整体叶盘结构的失谐响应放大问题，在叶盘结构中引入半主动压电阻尼技术，并利用基于非线性模态分析的非线性系统频域响应快速算法-非线性部件模态综合（NCMS）法对具有基于负电容的同步开关阻尼（SSDNC）的叶盘结构动力学特性进行理论探究。分析结果表明NCMS法相比于Newmark法具有很高的计算效率，并能保证较高计算精度；SSDNC能够同时对叶盘结构的多阶振动模态都产生较好的抑制效果，并对多谐波激励下叶盘结构的所有振动峰值都产生较好的抑制效果（对于本文所用模型，振动峰值下降可达到73%）；统计分析表明，SSDNC的振动抑制效果对叶盘结构机械失谐以及电路参数失谐均不敏感。

关键词: 叶盘结构;同步开关阻尼;非线性;部件模态综合法;振动抑制;失谐

LIU Jiu-zhou¹, LI Lin², XIN Jian-qiang¹, DONG Yong-peng^1,3, XU Teng-fei¹, QU Qiang¹. Research on Dynamic Characteristics of Blisk withSemi-Active Piezoelectric Damping[J]. Journal of Propulsion Technology, 2020, 41(4): 889-902.

刘久周，李琳，辛健强，董永朋，徐腾飞，屈强. 具有半主动压电阻尼的叶盘结构动力学特性研究[J]. 推进技术, 2020, 41(4): 889-902.

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Research on Dynamic Characteristics of Blisk withSemi-Active Piezoelectric Damping

具有半主动压电阻尼的叶盘结构动力学特性研究

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