Results 11 to 20 of about 652 (119)

Shape Sensing of a Complex Aeronautical Structure with Inverse Finite Element Method [PDF]

open access: yesSensors, 2021
The inverse Finite Element Method (iFEM) is receiving more attention for shape sensing due to its independence from the material properties and the external load. However, a proper definition of the model geometry with its boundary conditions is required,
Daniele Oboe   +3 more
doaj   +2 more sources

A High-Precision Inverse Finite Element Method for Shape Sensing and Structural Health Monitoring [PDF]

open access: yesSensors
In the contemporary era, the further exploitation of deep-sea resources has led to a significant expansion of the role of ships in numerous domains, such as in oil and gas extraction.
Hongsheng Yan, Jiangpin Tang
doaj   +2 more sources

Structural Damage Identification Based on Integrated Utilization of Inverse Finite Element Method and Pseudo-Excitation Approach [PDF]

open access: yesSensors, 2021
The attempt to integrate the applications of conventional structural deformation reconstruction strategies and vibration-based damage identification methods is made in this study, where, more specifically, the inverse finite element method (iFEM) and ...
Tengteng Li   +5 more
doaj   +2 more sources

Towards Automatic Crack Size Estimation with iFEM for Structural Health Monitoring [PDF]

open access: yesSensors, 2023
The inverse finite element method (iFEM) is a model-based technique to compute the displacement (and then the strain) field of a structure from strain measurements and a geometrical discretization of the same. Different literature works exploit the error
Daniele Oboe   +3 more
doaj   +2 more sources

Discontinuous Deformation Monitoring of Smart Aerospace Structures Based on Hybrid Reconstruction Strategy and Fiber Bragg Grating [PDF]

open access: yesSensors
A hybrid enhanced inverse finite element method (E-iFEM) is proposed for real-time intelligent sensing of discontinuous aerospace structures. The method can improve the flight performance of intelligent aircrafts by feeding back the structural shape ...
Kangyu Chen, Hengzhen Fan, Hong Bao
doaj   +2 more sources

Deflection Estimation of Truss Structures Using Inverse Finite Element Method [PDF]

open access: yesSensors, 2023
It is well recognized that strain and deflection data are important indexes to judge the safety of truss structures. Specifically, the shape sensing technology can estimate the deformation of a structure by exploiting the discrete strain data without ...
Zhaobo Zhang   +3 more
doaj   +2 more sources

Shape-Sensing of Beam Elements Undergoing Material Nonlinearities [PDF]

open access: yesSensors, 2021
The use of in situ strain measurements to reconstruct the deformed shape of structures is a key technology for real-time monitoring. A particularly promising, versatile and computationally efficient method is the inverse finite element method (iFEM ...
Pierclaudio Savino   +3 more
doaj   +2 more sources

An Online Measurement and Calibration Method for a Radio Telescope Sub-Reflector Support Structure Using Fiber Bragg Grating [PDF]

open access: yesMicromachines, 2023
The position and altitude of a sub-reflector have an important influence on the pointing accuracy of a radio telescope. With the increase of the antenna aperture, the stiffness of the support structure for the sub-reflector decreases.
Qian Xu, Hong Bao
doaj   +2 more sources

Isogeometric iFEM Analysis of Thin Shell Structures [PDF]

open access: yesSensors, 2020
Shape sensing is one of most crucial components of typical structural health monitoring systems and has become a promising technology for future large-scale engineering structures to achieve significant improvement in their safety, reliability, and ...
Adnan Kefal, Erkan Oterkus
doaj   +2 more sources

Optimal Sensor Placement for Inverse Finite Element Reconstruction of Three-Dimensional Frame Deformation

open access: yesInternational Journal of Aerospace Engineering, 2018
The inverse finite element method (iFEM) for the 3D framework deformation reconstruction was introduced. As the process of iFEM did not require a priori knowledge, such as the modal shape, the loading, and the elastic-inertial material information of the
Yong Zhao, Jingli Du, Hong Bao, Qian Xu
doaj   +2 more sources

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