The Application Research of Inverse Finite Element Method for Frame Deformation Estimation
A frame deformation estimation algorithm is investigated for the purpose of real-time control and health monitoring of flexible lightweight aerospace structures. The inverse finite element method (iFEM) for beam deformation estimation was recently proposed by Gherlone and his collaborators. The meth...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/1326309 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545483262787584 |
|---|---|
| author | Yong Zhao Hong Bao Xuechao Duan Hongmei Fang |
| author_facet | Yong Zhao Hong Bao Xuechao Duan Hongmei Fang |
| author_sort | Yong Zhao |
| collection | DOAJ |
| description | A frame deformation estimation algorithm is investigated for the purpose of real-time control and health monitoring of flexible lightweight aerospace structures. The inverse finite element method (iFEM) for beam deformation estimation was recently proposed by Gherlone and his collaborators. The methodology uses a least squares principle involving section strains of Timoshenko theory for stretching, torsion, bending, and transverse shearing. The proposed methodology is based on stain-displacement relations only, without invoking force equilibrium. Thus, the displacement fields can be reconstructed without the knowledge of structural mode shapes, material properties, and applied loading. In this paper, the number of the locations where the section strains are evaluated in the iFEM is discussed firstly, and the algorithm is subsequently investigated through a simple supplied beam and an experimental aluminum wing-like frame model in the loading case of end-node force. The estimation results from the iFEM are compared with reference displacements from optical measurement and computational analysis, and the accuracy of the algorithm estimation is quantified by the root-mean-square error and percentage difference error. |
| format | Article |
| id | doaj-art-023db45e15464fd1b51b75fef1ae14d6 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-023db45e15464fd1b51b75fef1ae14d62025-02-03T07:25:32ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742017-01-01201710.1155/2017/13263091326309The Application Research of Inverse Finite Element Method for Frame Deformation EstimationYong Zhao0Hong Bao1Xuechao Duan2Hongmei Fang3Key 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, ChinaKey Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an 710071, ChinaNanjing Research Institute of Electronics Technology, Nanjing 210039, ChinaA frame deformation estimation algorithm is investigated for the purpose of real-time control and health monitoring of flexible lightweight aerospace structures. The inverse finite element method (iFEM) for beam deformation estimation was recently proposed by Gherlone and his collaborators. The methodology uses a least squares principle involving section strains of Timoshenko theory for stretching, torsion, bending, and transverse shearing. The proposed methodology is based on stain-displacement relations only, without invoking force equilibrium. Thus, the displacement fields can be reconstructed without the knowledge of structural mode shapes, material properties, and applied loading. In this paper, the number of the locations where the section strains are evaluated in the iFEM is discussed firstly, and the algorithm is subsequently investigated through a simple supplied beam and an experimental aluminum wing-like frame model in the loading case of end-node force. The estimation results from the iFEM are compared with reference displacements from optical measurement and computational analysis, and the accuracy of the algorithm estimation is quantified by the root-mean-square error and percentage difference error.http://dx.doi.org/10.1155/2017/1326309 |
| spellingShingle | Yong Zhao Hong Bao Xuechao Duan Hongmei Fang The Application Research of Inverse Finite Element Method for Frame Deformation Estimation International Journal of Aerospace Engineering |
| title | The Application Research of Inverse Finite Element Method for Frame Deformation Estimation |
| title_full | The Application Research of Inverse Finite Element Method for Frame Deformation Estimation |
| title_fullStr | The Application Research of Inverse Finite Element Method for Frame Deformation Estimation |
| title_full_unstemmed | The Application Research of Inverse Finite Element Method for Frame Deformation Estimation |
| title_short | The Application Research of Inverse Finite Element Method for Frame Deformation Estimation |
| title_sort | application research of inverse finite element method for frame deformation estimation |
| url | http://dx.doi.org/10.1155/2017/1326309 |
| work_keys_str_mv | AT yongzhao theapplicationresearchofinversefiniteelementmethodforframedeformationestimation AT hongbao theapplicationresearchofinversefiniteelementmethodforframedeformationestimation AT xuechaoduan theapplicationresearchofinversefiniteelementmethodforframedeformationestimation AT hongmeifang theapplicationresearchofinversefiniteelementmethodforframedeformationestimation AT yongzhao applicationresearchofinversefiniteelementmethodforframedeformationestimation AT hongbao applicationresearchofinversefiniteelementmethodforframedeformationestimation AT xuechaoduan applicationresearchofinversefiniteelementmethodforframedeformationestimation AT hongmeifang applicationresearchofinversefiniteelementmethodforframedeformationestimation |