非周期压电阻尼对失谐叶盘结构振动局部化抑制机理

张凤玲; 聂金龙; 李琳; 田晶; 王志

doi:10.13224/j.cnki.jasp.20210133

非周期压电阻尼对失谐叶盘结构振动局部化抑制机理

doi: 10.13224/j.cnki.jasp.20210133

张凤玲^1,2,
聂金龙¹,
李琳²,
田晶¹,
王志¹

1.
沈阳航空航天大学辽宁省航空推进系统先进测试技术重点实验室，沈阳 110136
2.
北京航空航天大学能源与动力工程学院，北京 100191

基金项目: 辽宁省自然科学基金（2020-BS-174）；沈阳航空航天大学博士启动基金（120421004）；辽宁省教育厅项目（JYT2020033）

详细信息

作者简介:
张凤玲（1978-），女，讲师，博士，主要从事航空发动机振动抑制、故障诊断等研究。

中图分类号: V231.9
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- 被引次数: 0
出版历程
- 收稿日期: 2021-04-02
- 刊出日期: 2021-09-28

Vibration localization suppression mechanism of mistuned bladed-disk by aperiodic piezoelectric damping

1.
Key Laboratory of Advanced Measurement and Test Technique for Aviation Propulsion System，Liaoning Province，Shenyang Aerospace University，Shenyang 110136，China
2.
School of Energy and Power Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100191，China

摘要

摘要: 将非周期压电阻尼技术引入失谐叶盘结构形成机电耦合系统，推导了机电耦合系统的动力学方程，从理论上分析了非周期压电系统对失谐叶盘结构振动局部化的抑制效果。构造了两种非周期压电系统模型：非周期压电分支模型和非周期压电网络模型。研究结果表明：与双周期压电网络系统相比，按照能量集中的程度不同连接而成的非周期压电系统具有更好的振动局部化抑制效果。在非周期压电网络系统的构造中，电阻不再是关键因素，而主要是通过电路形式改变整个叶盘结构中的能量分配情况，电感作为储能元件在其中至关重要。通过合理设计非周期压电网络电路形式，可以得到比非周期压电分支系统和双周期压电网络系统更好的振动局部化抑制效果。
- 非周期压电阻尼 /
- 失谐叶盘 /
- 机电耦合系统 /
- 振动局部化 /
- 能量集中
Abstract: An aperiodic piezoelectric damping technology was introduced into the mistuned bladed-disk structure to form an electromechanical coupling system.The dynamic equations of the electromechanical coupling system were derived，and the vibration localization suppression effect of the aperiodic piezoelectric system on the mistuned bladed-disk was theoretically analyzed.Two models of aperiodic piezoelectric system were constructed：the aperiodic piezoelectric shunting model and the aperiodic piezoelectric network model.The results show that，the aperiodic piezoelectric system，which is connected according to the dimensions of energy concentration， has a better effect on the vibration localization suppression effect compared with the dual-periodic piezoelectric network system.In the construction of the aperiodic piezoelectric network system，the resistance is no longer the key factor，and the energy distribution in the whole bladed-disk structure is changed mainly through the circuit form，in which the inductor is very important as an energy storage element.Through the reasonable design of circuit form of the aperiodic piezoelectric network，the vibration localization suppression effect better than the aperiodic piezoelectric shunting system and the dual-periodic piezoelectric network system can be obtained.
- aperiodic piezoelectric damping /
- mistuned bladed-disk /
- electromechanical coupling system /
- vibration localization /
- energy concentration

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