A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method
An important issue in the existing inverse finite element method (iFEM) is that reconstruction accuracy cannot satisfy the analytical demand for the flexible structure. To address this issue, this paper presents a multi-nodes iFEM that reconstructs the displacement of structure based on surface meas...
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doaj-16340f33ddb24e31bd689710ff58ef902020-11-25T04:01:07ZengMDPI AGApplied Sciences2076-34172020-10-01107620762010.3390/app10217620A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element MethodShengtao Niu0Kexiang Li1Jianfeng Liu2Hong Bao3Key Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an 710071, China724th Research Institute of China State Shipbuilding Corporation Limited; Nanjing 211100, ChinaKey Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an 710071, ChinaKey Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an 710071, ChinaAn important issue in the existing inverse finite element method (iFEM) is that reconstruction accuracy cannot satisfy the analytical demand for the flexible structure. To address this issue, this paper presents a multi-nodes iFEM that reconstructs the displacement of structure based on surface measurement strains in real time. Meanwhile, in light of the response characteristics of iFEM, an innovative interpolation method is adapted to regenerate the full field deformation again. The proposed method substantially expands the size of inverse elements, which reduces the numbers of sensors and improves the reconstruction accuracy. The effectiveness of the method to predict displacement is verified by a flexible antenna panel subjected typical boundary conditions.https://www.mdpi.com/2076-3417/10/21/7620reconstruction accuracymulti-node iFEMinterpolation methodflexible antenna panel |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shengtao Niu Kexiang Li Jianfeng Liu Hong Bao |
spellingShingle |
Shengtao Niu Kexiang Li Jianfeng Liu Hong Bao A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method Applied Sciences reconstruction accuracy multi-node iFEM interpolation method flexible antenna panel |
author_facet |
Shengtao Niu Kexiang Li Jianfeng Liu Hong Bao |
author_sort |
Shengtao Niu |
title |
A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method |
title_short |
A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method |
title_full |
A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method |
title_fullStr |
A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method |
title_full_unstemmed |
A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method |
title_sort |
refined shape sensing method for skin antenna structure based on inverse finite element method |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-10-01 |
description |
An important issue in the existing inverse finite element method (iFEM) is that reconstruction accuracy cannot satisfy the analytical demand for the flexible structure. To address this issue, this paper presents a multi-nodes iFEM that reconstructs the displacement of structure based on surface measurement strains in real time. Meanwhile, in light of the response characteristics of iFEM, an innovative interpolation method is adapted to regenerate the full field deformation again. The proposed method substantially expands the size of inverse elements, which reduces the numbers of sensors and improves the reconstruction accuracy. The effectiveness of the method to predict displacement is verified by a flexible antenna panel subjected typical boundary conditions. |
topic |
reconstruction accuracy multi-node iFEM interpolation method flexible antenna panel |
url |
https://www.mdpi.com/2076-3417/10/21/7620 |
work_keys_str_mv |
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