Results 51 to 60 of about 7,117 (158)

Efficient Implementation of the Semi-Analytical Finite Element Method for Dispersion Curves Calculation in Multilayered Waveguides

Applied Sciences
The increasing use of layered materials in various modern industries demands effective non-destructive testing methods. Guided wave testing is a promising solution, but accurate dispersion curves are essential for its reliable implementation.
Dmitry O. Dolmatov, Mikhail M. Tsyplakov
doaj   +1 more source

Guided wave propagation in thermal media through the semi analytical finite element method

Journal of Theoretical and Applied Mechanics, 2016
In this paper, the issue of the estimation of wave propagation characteristics in thermal media is dealt with. A formulation, named the Thermal Semi Analytical Finite Element, based on the semi analytical finite element approach coupled with the thermal effect is offered. Temperature variations affect the mechanical properties of the waveguide.
Bouchoucha, Faker, Chaabane, Sonda, Najib Ichchou, Mohamed, Haddar, Mohamed   +3 more
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Dual-model approach for U-tube ground heat exchangers: semi-analytical and efficient finite element models

Sustainable Energy Research
This study presents a novel dual-model approach designed for accurate modeling of transient heat transfer in U-tube ground heat exchangers (GHEs), which is essential for optimizing the performance of ground source heat pump (GSHP) systems.
Kumudu Gamage, W. P. M. R. Pathirana
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A semi-analytical model for deflection analysis of laminated plates with the Newton-Kantorovich-Quadrature method

Materials Research, 2013
A semi-analytical approach for analysis of laminated plates with general boundary conditions under a general distribution of loads is developed. The non-linear equations are solved by the Newton-Kantorovich-Quadrature (NKQ) method which is a combination ...
Rasoul Khandan, Siamak Noroozi, Philip Sewell, John Vinney, Mehran Koohgilani   +4 more
doaj  

Groundwater pollution equation: Lie’s symmetry analysis and numerical consideration

Partial Differential Equations in Applied Mathematics
The current study modeled groundwater pollution through the utilization of the advection–diffusion equation - a versatile differential equation that is capable of modeling a variety of real-life processes.
A.F. Aljohani, Abdulhamed Alsisi, Saad Althobaiti, Aminu M. Nass, R.I. Nuruddeen, Mahmoud M. Selim, Osama Alamri, Ali Althobaiti   +7 more
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Evaluation of Numerical Methods for Dispersion Curve Estimation in Viscoelastic Plates

Eng
This study aims to evaluate the effectiveness of five analytical and semi-analytical methods for estimating Lamb wave dispersion in viscoelastic plates—the Rayleigh–Lamb solution, the Global Matrix Method (GMM), the Semi-Analytical Finite Element (SAFE ...
Jabid E. Quiroga, Octavio A. González-Estrada, Miguel Díaz-Rodríguez   +2 more
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Modeling and Simulation of Eddy Current Dissipation Magnetic Acceleration Noise of Space Inertial Sensors

Sensors
The magnetic acceleration noise (MAN) that stems from the eddy current dissipation of a test mass (TM) serves as an important source of noise for space inertial sensors.
Pengxuan Li, Zhiyin Sun, Wei Gao, Bingzhang Cao, Yunzhao Li, Liyi Li, Lei Wang   +6 more
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Research on High-Precision Calculation Method for Permanent Magnet Synchronous Motor Efficiency in Electric Vehicles Across Full Load-Speed Range

Energies
In order to accurately calculate the efficiency of electric vehicle drive motors in the full speed range during the design phase, this paper proposes a comprehensive motor loss fast calculation method.
Yukuan Li, Huichao Zhao, Sibo Wang, Wan Huang, Yao Wang, Bo Gao, Wei Pang, Tianxu Zhao, Yuan Cheng   +8 more
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Obtaining Dispersion Curves of Damped Waves by Employing Semi Analytical Finite Element Formulation

, 2015
Semi-analytical finite element (SAFE) method is used for modelling propagation of elastic waves in waveguides of cross-sections uniform along the propagation direction. Dispersion curves, which express the relation between the circular frequency and the wavenumber of propagating wave were obtained.
Audrius Neciunas, Rimantas Barauskas, Vitalija Kersiene   +2 more
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Semi-Analytical Investigation into the Balanced Performance of Thick-Walled Fiber-Reinforced Flexible Pipes. [PDF]

Materials (Basel)
You J, Zhao Y, Zhang B.
europepmc   +1 more source