Results 61 to 70 of about 163 (105)

Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors

Sensors, 2019
Environmental loads linked with pointing errors, such as gravity, thermal gradients, and wind disturbances, are a serious concern for large-aperture high-frequency radio telescopes.
Yong Zhao, Jingli Du, Qian Xu, Hong Bao
doaj   +1 more source

All-Fiber Optic Sensing for Multiparameter Monitoring and Domain-Wide Deformation Reconstruction of Aerospace Structures in Thermally Coupled Environments

Aerospace
This study introduces an all-fiber optic sensing network based on fiber Bragg grating (FBG) technology for structural health monitoring (SHM) of launch vehicle payload fairings under extreme thermo-mechanical conditions.
Zifan He, Xingguang Zhou, Jiyun Lu, Shengming Cui, Hanqi Zhang, Qi Wu, Hongfu Zuo   +6 more
doaj   +1 more source

Study on Strain Field Reconstruction Method of Long-Span Hull Box Girder Based on iFEM

Journal of Marine Science and Engineering
The box girder’s condition significantly impacts the safety and overall performance of the entire ship because it is the primary stress component of the hull construction.
Guocai Chen, Xueliang Wang, Nan Zhao, Zhentao Jiang, Fei Li, Haozheng Chen, Pengyu Wei, Tao Zhang   +7 more
doaj   +1 more source

Strain pre-extrapolation methods for shape sensing: A comparative study between modal virtual sensor expansion and smoothing element analysis

Results in Engineering
Reconstructing displacement fields from sparse strain measurements, commonly referred to as shape sensing, has become a key component in developing effective Structural Health Monitoring (SHM) systems and for enabling accurate digital twin ...
Marco Esposito
doaj   +1 more source

Data-driven framework for extracting steady-state deformation resistance from transient experimental data without inverse finite element analysis

Advances in Industrial and Manufacturing Engineering
Accurate characterization of the steady-state deformation resistance of materials is a prerequisite for high-precision forming simulations. However, controlling the temperature and strain rate in high-temperature tensile experiments is difficult and can ...
Eiichi Ota, Minami Fujimura, Yasumoto Sato   +2 more
doaj   +1 more source

Warping Deformation Prediction of Smart Skin Composite Airfoil Structure with Inverse Finite Element Approach

Aerospace
The design of smart skin with lightweight requirements utilizes high-performance composite materials, resulting in thin structural characteristics. When subjected to complex aerodynamic loads, the smart skin structure experiences warping deformation ...
Hao Zhang, Junli Wang, Wenshuai Liu, Huaihuai Zhang, Wei Kong   +4 more
doaj   +1 more source

Optimal Monitoring Section Layout for iFEM-Based Strain Reconstruction of Subsea Pipelines via Greedy Search

Infrastructures
Subsea oil and gas pipelines are critical infrastructure in marine engineering, and strain monitoring is essential for their safe operation. However, due to the complexity of the marine environment and the constraints practical deployment, engineering ...
Xueyu Ren, Jiawang Chen, Shang Sun, Jianling Zhou, Zhonghui Zhou, Yuan Lin   +5 more
doaj   +1 more source

Real-Time Digital Twin of Ship Structure Deformation Field Based on the Inverse Finite Element Method

Journal of Marine Science and Engineering
Digital twins, an innovative technology propelled by data and models, play a seminal role in the digital transformation and intelligent upgrade of ships.
Pengyu Wei, Chuntong Li, Ze Jiang, Deyu Wang   +3 more
doaj   +1 more source

Delamination Detection and Localization in Vibrating Composite Plates and Shells Using the Inverse Finite Element Method. [PDF]

Sensors (Basel), 2023
Ganjdoust F, Kefal A, Tessler A.
europepmc   +1 more source

Delamination and Skin-Spar Debond Detection in Composite Structures Using the Inverse Finite Element Method. [PDF]

Materials (Basel), 2023
Roy R, Gherlone M.
europepmc   +1 more source