Results 11 to 20 of about 3,661 (155)

Analytical modelling of No‐load magnetic field for equivalent poles of a new type of double‐stator PM poles spherical motor

IET Electric Power Applications, 2022
A double‐stator swing rotating permanent magnet spherical motor (SR‐PMSM) is designed, which can realize rotation, swing and spiral motion, and is used in the multi‐degree‐of‐freedom motion fields of industrial robot joints, torque gyroscopes, panoramic ...
Qing Chen, Xiangyu Yang, Jianghua Cao, Guanming Zhong, Bingsen Zeng, Shiwei Zhao, Guanbao Zeng   +6 more
doaj   +1 more source

Effect of shape and sizes of a local heat source on convective heat transfer in a square cavity [PDF]

Компьютерные исследования и моделирование, 2015
Numerical analysis of the effects of the local heat source shape on transient natural convection in a square enclosure has been carried out. The local heat source has rectangular, triangular and trapezoidal shape. The boundary value problem formulated in
N. S. Gibanov, Mikhail Aleksandrovich Sheremet   +1 more
doaj   +1 more source

The Interval-Valued Trapezoidal Approximation of Interval-Valued Fuzzy Numbers and Its Application in Fuzzy Risk Analysis

Journal of Applied Mathematics, 2014
Taking into account that interval-valued fuzzy numbers can provide more flexibility to represent the imprecise information and interval-valued trapezoidal fuzzy numbers are widely used in practice, this paper devotes to seek an approximation operator ...
Zengtai Gong, Shexiang Hai
doaj   +1 more source

An 8-Node Solid-Shell Finite Element based on Assumed Bending ‎Strains and Cell-Based Smoothed Membrane Strains for Static Analysis of Plates and Shells [PDF]

Journal of Applied and Computational Mechanics, 2020
In this paper, a new 8-node solid-shell finite element is proposed. The transverse shear strains and transverse normal strains of the element are separately interpolated and related to the C0-displacement approximation at tying points to overcome the ...
Thanh Chau-Dinh, Nhat Le-Tran
doaj   +1 more source

Exponentially Convergent Trapezoidal Rules to Approximate Fractional Powers of Operators

Journal of Scientific Computing, 2022
AbstractIn this paper we are interested in the approximation of fractional powers of self-adjoint positive operators. Starting from the integral representation of the operators, we apply the trapezoidal rule combined with a double-exponential transform of the integrand function.
Lidia Aceto, Paolo Novati
openaire   +5 more sources

Comparison of Geometric and Volumetric Methods to a 3D Solid Model for Measurement of Gully Erosion and Sediment Yield

Geosciences, 2018
Gully erosion is a global problem that degrades land and reduces its utility for agriculture, development, and water quality. Quantification of sediment yield and control of sediment sources is essential for environmental protection.
Ingrid Luffman, Arpita Nandi, Benjamin Luffman   +2 more
doaj   +1 more source

Reducing computational requirement of stability analysis of milling by partial averaging

Manufacturing Review, 2014
The trapezoidal rule and Taylor theorem are used to establish a novel reformulation technique called Partial Averaging (PA). PA is seen to reduce computational time (CT) of computer central processing unit (CPU) without loss of accuracy.
Godwin Ozoegwu Chigbogu, Sam Omenyi
doaj   +1 more source

Parameter-uniform numerical scheme for singularly perturbed parabolic convection–diffusion Robin type problems with a boundary turning point

Results in Applied Mathematics, 2022
In this work, a numerical method for the singularly perturbed parabolic convection–diffusion turning point problem with Robin boundary condition was developed.
Fasika Wondimu Gelu, Gemechis File Duressa   +1 more
doaj   +1 more source

Alternative Integration Approaches in the Weight Function ‎Method for Crack Problems [PDF]

Journal of Applied and Computational Mechanics, 2021
This study proposes two alternative approaches to complement existing integration strategies used in the weight function method for linear elastic crack problems.
Martin Eder, Xiao Chen
doaj   +1 more source

Numerical investigation of steady state, laminar, natural convection of Bingham fluids in a trapezoidal enclosure heated from the bottom and cooled from the sides

International Journal of Thermofluids, 2023
Laminar, steady-state, natural convection of Bingham fluids in trapezoidal enclosures with a heated bottom wall, cooled inclined sidewalls and an adiabatic top wall has been studied based on numerical simulations for a range of values of nominal Bingham ...
S. Malkeson, S. Alshaaili, N. Chakraborty   +2 more
doaj   +1 more source