An application of neural network for Structural Health Monitoring of an adaptive wing with an array of FBG sensors

被引:4
|
作者
Mieloszyk, Magdalena [1 ]
Krawczuk, Marek [1 ]
Skarbek, Lukasz [1 ]
Ostachowicz, Wieslaw [1 ]
机构
[1] IFFM PASci, PL-80952 Gdansk, Poland
来源
9TH INTERNATIONAL CONFERENCE ON DAMAGE ASSESSMENT OF STRUCTURES (DAMAS 2011) | 2011年 / 305卷
关键词
COMPOSITE; DYNAMICS; PLATE;
D O I
10.1088/1742-6596/305/1/012066
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper presents an application of neural networks to determinate the level of activation of shape memory alloy actuators of an adaptive wing. In this concept the shape of the wing can be controlled and altered thanks to the wing design and the use of integrated shape memory alloy actuators. The wing is assumed as assembled from a number of wing sections that relative positions can be controlled independently by thermal activation of shape memory actuators. The investigated wing is employed with an array of Fibre Bragg Grating sensors. The Fibre Bragg Grating sensors with combination of a neural network have been used to Structural Health Monitoring of the wing condition. The FBG sensors are a great tool to control the condition of composite structures due to their immunity to electromagnetic fields as well as their small size and weight. They can be mounted onto the surface or embedded into the wing composite material without any significant influence on the wing strength. The paper concentrates on analysis of the determination of the twisting moment produced by an activated shape memory alloy actuator. This has been analysed both numerically using the finite element method by a commercial code ABAQUS (R) and experimentally using Fibre Bragg Grating sensor measurements. The results of the analysis have been then used by a neural network to determine twisting moments produced by each shape memory alloy actuator.
引用
收藏
页数:10
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