This paper presents the contemporary problems of polymer waste recycling, mainly recycling cables from end-of-life vehicles. The authors developed a new material based on mixed (ASR) modified with ductile polymer, recycled low-density polyethylene (rLDPE), to produce moisture-resistant boards beneficial mechanical properties. ASR-based compositions without and homogenization process—including physical, chemical, shear-assisted compatibilization—were successfully applied verified by...

This paper proposes a methodology for shape optimization of the starting cage line start permanent magnet synchronous motor with aim to improve its synchronization performance. The parameters machine are established from field-circuit model, where magnetic field is simulated using finite element method (FEM). A strategy evaluating exploiting parallel computing proposed. To facilitate use FEM package, bespoke procedures have been developed and model parameterization applied aid scripting...

Purpose The purpose of this paper is to investigate application possibilities soft magnetic composites (SMC) in the design high speed permanent motors for home appliances. Design/methodology/approach magnet motor (HSPM) with core made SMC has been proposed. governing information about presented. possible advantages and disadvantages applying powder materials electrical machines have studied. To solve partial differential equations describing vector distribution considered HSPM, edge element...

The paper deals with analysis of radial forces in the multi-phase synchronous reluctance machines (SynRM). SynRM three-, six- and nine-phase windings were studied. field models developed to determine normal tangential components magnetic flux density vector air-gap studied machines. selected research results have been presented discussed.

The article discusses the synthesis and analysis of a high-power-density axial flux permanent magnet synchronous motor (AFPMSM) with active cooling. research included electromagnetic thermal analysis. In part, numerical employing 3D finite element method were carried out to analyze influence machine geometry current density on overall performance achieved power density. approach, an cooling concept channel located in winding was analyzed. Numerical thermodynamic models developed, based which...

This paper investigates the concept of induction gear based on eddy current phenomena. In research, impact selected dimensions magnetic circuit electromagnetic torque and estimated efficiency has been examined. Numerical models that employ finite element method have developed to determine performance variants studied. On this basis, best design solutions were identified for future studies.

The presented research is focussed on analysis of dynamics a two-stage magnetic precession gear system. In the proposed mathematical model studied two approaches have been considered. Firstly, has defined using torque versus angle characteristics determined by means detailed 3D FEM field. second approach based vs. measurements prototype step response. results obtained methods are compared and discussed.

Purpose The purpose of this paper is to elaborate upon the mathematical model coupled electromagnetic, fluid dynamic and motion phenomena that will allow for investigation magnetic hysteresis influence on axial symmetry magnetorheological (MRF) clutch operation. Design/methodology/approach To solve partial differential equations describing vector velocity potential distributions in MRF electromechanical transducers finite‐element methods have been applied. time domain, stepping method...

This study deals with the impact of squirrel cage design on synchronisation line start permanent magnet synchronous motor (LSPMSM). The numerical model machine is based finite element method. Special attention paid to analysis process during start‐up for high inertia loads. results two different designs are presented and discussed. strategy optimisation shape LSPMSM has been proposed validated by examples.

The work presented here describes the first results of an effective method assessing quality electrostatic separation mixtures polymer materials. motivation for research was to find mechanical plastic materials and a quick assessment effectiveness itself. proposed is based on application dedicated vision system developed needs separation. elaborated has been demonstrated by evaluating poly (methyl methacrylate) (PMMA) polystyrene (PS). obtained show that can be successfully employed in...

The paper presents a field model of coupled phenomena occurring in an axisymmetric magnetorheological brake. coupling between transient fluid dynamics and electromagnetic thermal fields as well mechanical equilibrium equations is taken into account. magnetic the studied brake excited hybrid manner, i.e., by permanent magnets (PMs) current Is excitation winding. finite element method step-by-step algorithm have been implemented proposed considered nonlinearity circuit rheological properties...

The paper focuses on the analysis of asynchronous torque line start permanent magnet synchronous motor (LSPMSM) with asymmetrical squirrel cage winding. In order to calculate parametrical field-circuit model

This paper contains research on the development of a fault-tolerant six-phase synchronous reluctance motor (SynRM) based stator adopted from general-purpose three-phase induction motor. In design and calculation process, an extended Clarke transformation was developed for asymmetrical system. To verify proposed approach, field–circuit model electromagnetic phenomena in studied used to study performance. The increased torque value reduction ripples were confirmed by comparison classical SynRM...

The paper presents a 2D field-circuit model of coupled electromagnetic thermal and mechanical phenomena in line start permanent magnet synchronous motor (LSPMSM). nonlinearity the magnetic circuit, influence temperature on properties magnets as well electric materials have been taken into account. elaborated basis this algorithm developed computer program used to analyze armature reaction stabilization during starting process considered motor. selected results simulations presented discussed.

Purpose The purpose of this paper is to compare parameters and properties optimal structures a line-start permanent magnet synchronous motor (LSPMSM) for the cage winding different rotor bar shape. Design/methodology/approach mathematical model considered includes equation electromagnetic field, electric circuit equations mechanical equilibrium. numerical implementation based on finite element method (FEM) step-by-step algorithm. To improve particle swarm optimization (PSO) algorithm...

Purpose The purpose of this paper is to elaborate the methodology and software for optimization rotor structure line-start permanent magnet synchronous motor (LSPMSM). To prove usefulness presented approach case study problem has been solved.

Purpose – The purpose of this paper is to elaborate an algorithm and the computer code for optimization permanent magnet synchronous motor (PMSM) including shaft torque, cogging total harmonic distortion factor back EMF volume into compromise objective function. Design/methodology/approach mathematical model device includes magnetic field equations with nonlinearity core taken account. numerical implementation based on finite element method (FEM) time stepping procedure. genetic has been...

This paper deals with the torque ripple minimization method based on modulation of phase currents permanent-magnet synchronous motor (PMSM) drive. The shape supply current waveforms reducing machine considered was determined basis finite element analysis (FEA). In proposed approach, is supplied by a six-leg inverter in order to allow for injection zero sequence harmonics. Two test PMSMs fractional-slot concentrated windings (FSCW) and surface-mounted permanent magnets (SPMs) have been...

Purpose The purpose of this paper is to investigate advantages multiphase permanent magnet synchronous motors (PMSM) with fractional slot concentrated windings (FSCW). investigation based on comparative analysis and assessment FSCW PMSM wound as 3, 6, 9 12 phase machines suited for low speed applications. Design/methodology/approach investigations are focussed distortions back electromotive ( emf ) magnetomotive force mmf the torque ripples motors’ performance taken into account. finite...

The paper deals with an optimization of a magnetic circuit the field exciter designed to control magnetorheological fluid (MRF) in hybrid soft–rigid jaw gripper. case discussed includes sealing MRF inside cushion made thermoplastic polyurethane (TPU). shear stress distributions upon excitation have been analyzed for various permanent magnet, yoke, and air gap dimensions. In developed numerical model exciter, geometry considered domain was parameterized. As part simulation study, more than...

The aim of this study was to investigate and analyze the impact selected parameters during tribocharging process shredded poly(ethylene terephthalate) (PET) high-density polyethylene (PE-HD) plastics on accumulated electric charge electrostatic separation effectiveness. accumulation surfaces polymer particles as a result their circular motion forced by airflow cyclone container investigated. material, time intensity were experimentally examined. A in which considered polymers are electrified...

This paper presents a study of penetrating pin into magnetorheological fluid (MR) cushion focused on the force measurement. The research is supported by detailed finite element analysis (FEA) magnetic field distributions in several exciters applied to control rheological properties MR inside cushion. part finger pad jaw soft-rigid gripper and was made thermoplastic polyurethane (TPU) using 3D printing technology. For pin-penetrating setup, use holding electromagnet holder were considered...

Abstract Purpose – The aim of this paper is to find an accurate model for the finite element analysis coupled phenomena in dynamic operation a magnetorheological clutch (MR CLUTCH). Design/methodology/approach rheological properties fluid (MRF) depend on magnetic field distribution. Therefore, field‐circuit electromagnetic with motion MRF. method and time stepping algorithm are used solve examined problem. eddy currents massive conducting elements taken into consideration. In order include...

The aim of this study was to carry out the investigation and analysis two-stage magnetic precession gear dynamics determination resonance frequencies, which can be a cause powertrain system failures. Graphical interpretation is presented, two equations movable elements presented gearbox were determined. On basis these equations, stiffness coefficients frequencies mathematically derived. next step develop numerical model in environment MATLAB Simulink. elaborated allowed us analyze influence...