非光滑NES在转子-叶片系统振动抑制中的应用

doi:10.12068/j.issn.1005-3026.2020.08.007

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (8): 1103-1110.DOI: 10.12068/j.issn.1005-3026.2020.08.007

非光滑NES在转子-叶片系统振动抑制中的应用

曹焱博，李之傲，韩金超，姚红良

(东北大学机械工程与自动化学院，辽宁沈阳110819)

收稿日期:2019-09-17 修回日期:2019-09-17 出版日期:2020-08-15 发布日期:2020-08-28
通讯作者: 曹焱博
作者简介:曹焱博(1992-)，男，吉林松原人，东北大学博士研究生；姚红良(1979-)，男，河北唐县人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1708257)；中央高校基本科研业务费专项资金资助项目(N180313009).

Application of Non-smooth NES in Vibration Suppression of Rotor-Blade Systems

CAO Yan-bo， LI Zhi-ao， HAN Jin-chao， YAO Hong-liang

School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.

Received:2019-09-17 Revised:2019-09-17 Online:2020-08-15 Published:2020-08-28
Contact: YAO Hong-liang
About author:-
Supported by:
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摘要/Abstract

摘要： 用非光滑非线性能量阱(non-smooth nonlinear energy sink，NSNES)抑制转子-叶片系统的振动，NSNES结构采用分段线性刚度梁形式.首先介绍了NSNES的结构和工作原理，然后利用拉格朗日方程建立转子-叶片-NSNES系统的动力学模型，最后采用数值法分析了该耦合系统处于稳态共振时，NSNES对转子振动和叶片振动的抑制能力.在给定参数下，附加于叶片尖部的NSNES在抑制转子振动时，抑振率可达到68%；在抑制叶片振动时，抑振率可达到62%.文中还将该NSNES的抑振能力与具有相同质量线性动力吸振器(linear dynamic vibration absorber， LDVA)的抑振能力进行了对比.

关键词: 转子-叶片系统, 非光滑非线性能量阱, 稳态振动, 振动抑制

Abstract: The vibration of the rotor-blade system is suppressed by a non-smooth nonlinear energy sink (NSNES) with piecewise linear stiffness beams. Firstly， the structure and working principle of the NSNES are introduced， and then the dynamic model of rotor-blade-NSNES system is established by using the Lagrange equation. Finally， the numerical method is used to analyze the NSNES ability to suppress the vibration of rotor and blade when the coupled system is in steady state resonance. Under the given parameters， the inhibition rate of the NSNES attached to the tip of the blade on rotor vibration can reach 68%， and the inhibition rate on blade vibration can reach 62%. The NSNES vibration suppression capability is compared with the vibration damping capability of a linear dynamic vibration absorber with the same mass as the NSNES.

Key words: rotor-blade system, non-smooth NES, steady-state vibration, vibration suppression

中图分类号:

TD451

曹焱博，李之傲，韩金超，姚红良. 非光滑NES在转子-叶片系统振动抑制中的应用[J]. 东北大学学报:自然科学版, 2020, 41(8): 1103-1110.

CAO Yan-bo， LI Zhi-ao， HAN Jin-chao， YAO Hong-liang. Application of Non-smooth NES in Vibration Suppression of Rotor-Blade Systems[J]. Journal of Northeastern University Natural Science, 2020, 41(8): 1103-1110.

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非光滑NES在转子-叶片系统振动抑制中的应用

Application of Non-smooth NES in Vibration Suppression of Rotor-Blade Systems

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