Despite many advantages of BrushLess DC motor, torque pulsation is one of the most important disadvantages of it. At first, an optimum primary design of BLDC motor is done using PSO algorithm. Then, other parameters for reducing the torque pulsation are considered by finite element method. It is shown that fractional slot structure has many advantages than conventional one. Both cogging and rip...

The response of soft body impact on a Ni-Ti shape memory alloy with conical model is investigated by using the nonlinear finite element analysis method for obtaining Kinetic Energy, Internal Energy and contact force plot by considering idealized bird model with constant velocity.

CAMRAD II is an aeromechanical analysis of helicopters and rotorcraft that incorporates a combination of advanced technology, including multibody dynamics, nonlinear finite elements, and rotorcraft aerodynamics. For the design, testing, and evaluation of rotors and rotorcraft; at all stages, including research, conceptual design, detailed design, and development; it calculates performance, load...

This paper is a user’s manual for MCLite, an adaptive multilevel finite element MATLAB package for solving scalar nonlinear elliptic equations in the plane. MCLite is a two-dimensional MATLAB prototype of a more complete twoand three-dimensional ANSI-C code called MC, which expends MCLite’s capabilities to elliptic systems of tensor equations on 2and 3-manifolds. Both codes share the same core ...

The non-linear Ψ -i-characteristic is crucial for the design of switched reluctance machines. Known analytical calculations are based on complex models of the magnetic circuit or on functions needing a fitting procedure (using measured or FEM-calculated data). In this paper, a method is presented that requires only very few input data, which can be deduced easily from the geometry of the machin...

The idea of using material forces also termed configurational forces in a computational setting is presented. The theory of material forces is briefly recast in the terms of a non-linear elastic solid. It is shown, how in a computational setting with finite elements (FE) the discrete configurational forces are calculated once the classical field equations are solved. This post-process calculati...

this research work is devoted to the development of a mathematical model for the simulation of the flow of polymeric melts through the die region of extruders. a set of governing equations are solved using finite element method. standard galerkin technique is used in conjunction with the mixed scheme to solve the flow equation. due to the non-linear nature of global equations, the picard iterat...

The Landau-Lifshitz-Gilbert equation describes dynamics of ferromagnetism, where strong nonlinearity, nonconvexity are hard to tackle: so far, existing schemes to approximate weak solutions suffer from severe time-step restrictions. In this paper, we propose an implicit fully discrete scheme and verify unconditional convergence.