A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method

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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Main Authors: Shengtao Niu, Kexiang Li, Jianfeng Liu, Hong Bao
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Applied Sciences
Subjects:
reconstruction accuracy
multi-node iFEM
interpolation method
flexible antenna panel
Online Access:https://www.mdpi.com/2076-3417/10/21/7620
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spelling 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 AT shengtaoniu arefinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT kexiangli arefinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT jianfengliu arefinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT hongbao arefinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT shengtaoniu refinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT kexiangli refinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT jianfengliu refinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
AT hongbao refinedshapesensingmethodforskinantennastructurebasedoninversefiniteelementmethod
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