平面铝板上的压电振动除冰方法

doi:10.7527/S1000-6893.2014.0205

固体力学与飞行器总体设计

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平面铝板上的压电振动除冰方法

白天¹, 朱春玲¹, 苗波¹, 李清英², 张泉³

1. 南京航空航天大学航空宇航学院, 南京 210016;
2. 上海工程技术大学航空运输学院, 上海 201620;
3. 陕西飞机工业(集团)有限公司, 汉中 723213

收稿日期:2014-06-06 修回日期:2014-09-01 出版日期:2015-05-15 发布日期:2014-09-10
通讯作者: 朱春玲Tel.: 025-84896667 E-mail: clzhu@nuaa.edu.cn E-mail:clzhu@nuaa.edu.cn
作者简介:白天男, 博士研究生。主要研究方向:飞机防除冰技术,结冰探测技术。 E-mail: mydaytime2005@aliyun.com;朱春玲女, 博士, 教授, 博士生导师。主要研究方向: 飞行器环境控制,飞机结冰与防除冰技术,结冰探测技术。 Tel: 025-84896667 E-mail: clzhu@nuaa.edu.cn;苗波男, 硕士研究生。主要研究方向: 飞机防除冰技术。 E-mail: tianxiao8090@163.com;李清英女, 博士, 讲师。主要研究方向: 飞机防除冰技术。 E-mail: liqy_2013@163.com;张泉男, 高级工程师。主要研究方向: 飞机防除冰技术。 E-mail: zhangquan1025@163.com
基金资助:
611航空科研基金;上海高校青年教师培养资助计划专项基金(ZZGJD13033)

Vibration de-icing method with piezoelectric actuators on flat aluminum plate

BAI Tian¹, ZHU Chunling¹, MIAO Bo¹, LI Qingying², ZHANG Quan³

1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. School of Air Transportation, Shanghai University of Engineering Science, Shanghai 201620, China;
3. Shaanxi Aircraft Industry (Group) Corporation Ltd., Hanzhong 723213, China

Received:2014-06-06 Revised:2014-09-01 Online:2015-05-15 Published:2014-09-10
Supported by:
611 Aeronautical Research Foundation; Special Foundation for Young College Teachers Training Program of Shanghai (ZZGJD13033)

摘要/Abstract

摘要：

以平面铝板为对象,对压电振动除冰方法进行了理论与实验研究。使用有限元方法(FEM)分析了压电片(PZT)长度和厚度对所激发结构模态振动强度的影响。建立了冰层的二维受力模型,分析接触面上的切应力分布,为除冰模态的选取提供指导。结果表明,理想情况下当PZT长度约为某模态半波长的奇数倍时,对该模态的激发效果最好,此外压电片长度还受到结构表面应变分布的影响。在满足强度要求的前提下,压电片厚度应尽量小。结构与冰接触面上的最大切应力出现在结冰边缘部位,大小与结构表面的应变有关,在振动节线附近的切应力最小。实验获得了较好的验证结果,除冰功率约为36.5 W/m²,比电热除冰方法的功耗低1~2个量级。

关键词: 压电, 除冰, 剪切应力, 有限元方法, 振动

Abstract:

This work presents the analytic and experimental research of a kind of de-icing method with piezoelectric transducer as actuators. The whole work is conducted on a flat aluminum plate. The finite element method (FEM) is used to get the relationships between the length and thickness of piezoelectric ceramic transducer (PZT) and the vibration intensity of the modes being excited. Two-dimensional analytic model is derived for ice bonded to the plate. This model leads to the ability to predict the shear stress along the bond layer between ice and plate and gives guidance as to the choice of modes of vibration for de-icing. The results show that for a certain mode the maximum excitation will happen when the PZT length is an odd integer multiple of the half wavelength of that mode. Actually the length will be a little affected by the strain distribution on the surface of plate. The thickness of PZT should be thin as long as the strength requirements are met. The maximum shear stress on the bond layer concentrates on the edge of length direction, and the amplitude depends upon the strain on the surface of plate under the edge of ice. Generally, minimum shear stress is produced around the stagnation line of certain mode. These conclusions are verified by a set of de-icing experiments and the power consumption is about 36.5 W/m², which is lower than that of electro-thermal de-icing method by one to two orders of magnitude.

Key words: piezoelectric, de-icing, shear stress, finite element method, vibration

中图分类号:

V244.1

白天, 朱春玲, 苗波, 李清英, 张泉. 平面铝板上的压电振动除冰方法[J]. 航空学报, 2015, 36(5): 1564-1573.

BAI Tian, ZHU Chunling, MIAO Bo, LI Qingying, ZHANG Quan. Vibration de-icing method with piezoelectric actuators on flat aluminum plate[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(5): 1564-1573.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

平面铝板上的压电振动除冰方法

Vibration de-icing method with piezoelectric actuators on flat aluminum plate

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