A New Analytical Model for Clutch System Modeling and Design Optimization

2019 ◽  
Author(s):  
Rahul Shandilya ◽  
Vikas Rawla
Keyword(s):  
Design Optimization ◽  
Analytical Model ◽  
System Modeling ◽  
Clutch System

scholarly journals Design optimization of an axial-field eddy-current magnetic coupling based on magneto-thermal analytical model

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Julien Fontchastagner ◽  
Thierry Lubin ◽  
Smaïl Mezani ◽  
Noureddine Takorabet
Keyword(s):  
Design Optimization ◽  
Analytical Model ◽  
Eddy Current ◽  
Convection Heat Transfer ◽  
Design Procedure ◽  
Magnetic Coupling ◽  
Optimization Procedure ◽  
Computationally Efficient ◽  
Transfer Coefficients ◽  
Good Efficiency

Abstract This paper presents a design optimization of an axial-flux eddy-current magnetic coupling. The design procedure is based on a torque formula derived from a 3D analytical model and a population algorithm method. The main objective of this paper is to determine the best design in terms of magnets volume in order to transmit a torque between two movers, while ensuring a low slip speed and a good efficiency. The torque formula is very accurate and computationally efficient, and is valid for any slip speed values. Nevertheless, in order to solve more realistic problems, and then, take into account the thermal effects on the torque value, a thermal model based on convection heat transfer coefficients is also established and used in the design optimization procedure. Results show the effectiveness of the proposed methodology.

scholarly journals Experimental study of fission counter design optimization with a simplified analytical model of performance

1979 ◽  
Author(s):  
K.H. Valentine ◽  
J.T. De Lorenzo ◽  
W.T. Clay ◽  
V.K. Pare ◽  
G.C. Guerrant ◽  
...  
Keyword(s):  
Experimental Study ◽  
Design Optimization ◽  
Analytical Model

A Study on Effect of Concrete Foundations on Resistance and Surface Potentials of Gas Insulated Substation Grounding Systems

2017 ◽  
Vol 18 (6) ◽  
Author(s):  
Mandava Mohana Rao
Keyword(s):  
Design Optimization ◽  
Analytical Model ◽  
High Voltage ◽  
Performance Parameters ◽  
Grounding System ◽  
Earth Resistivity ◽  
Ground Resistance ◽  
Fault Currents ◽  
Permissible Levels ◽  
Gas Insulated Substation

AbstractGround resistance of high voltage substations must be as low as possible for safe grounding of their equipment both during normal and fault conditions. However, in gas insulated substations (GIS), even though resistance is low, it does not ensure the step and touch potentials of the grounding system within permissible levels. In the present study, an analytical model has been developed to calculate ground resistance, step and touch potentials of a grounding system used for GIS. Different models have been proposed for the evaluation of number of grounding rods to be inserted in to the ground. The effect of concrete foundations on above performance parameters has been analyzed by considering various fault currents, soil/earth resistivities and number of grounding rods. Finally, design optimization of GIS grounding system has been reported for fault currents in the order of 63 kA located in earth resistivity of 100Ω-m and above.

scholarly journals Design Optimization of Permanent Magnet

2018 ◽  
Author(s):  
Ebrahimi
Keyword(s):  
Finite Element ◽  
Design Optimization ◽  
Permanent Magnet ◽  
Equivalent Circuit ◽  
Flux Density ◽  
Analytical Model ◽  
Optimization Algorithm ◽  
Ant Algorithm ◽  
Iron Saturation ◽  
Selection Of

A multilevel ant algorithm is developed to optimize thedesign process of a surface mounted permanent magnetsynchronous motor. The motor properties are calculated using anexact magnetic equivalent circuit based analytical model. Thismodel takes into account the iron saturation, the slot stray fluxesand the spatial harmonics of rotor and stator fluxes. Theeffectiveness of the proposed analytical model is verified incomparison with measurement of a handmade prototype. Basedon this analytical model the air gap flux density, torque andinduced voltage of the prototype motor are predicted. For aneffective selection of motor parameters, a multipurposeoptimization algorithm is developed, which is based on thedistributed multilevel ant-stigmergy algorithm. The analyticalmodel together with the optimization algorithm represents a veryeffective tool for design of permanent magnet synchronous motorwithout any need for time consuming finite element programs.

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