Search Results - "Lowther, D.A"

The Implications of the Use of Composite Materials in Electromagnetic Device Topology and Shape Optimization by Kim, D.-H., Sykulski, J.K., Lowther, D.A.

“…The use of soft magnetic composites (SMCs) provides electromagnetic device designers with serious challenges. While such materials have the potential of…”
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Differential Evolution Strategy for Constrained Global Optimization and Application to Practical Engineering Problems by Hong-Kyu Kim, Jin-Kyo Chong, Kyong-Yop Park, Lowther, D.A.

“…In this paper, some modifications to the differential evolution strategy are proposed for the constrained global optimization problem. The scaling factor F is…”
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Selection of approximation models for electromagnetic device optimization by Wang, L., Lowther, D.A.

“…Approximation models are frequently used in design optimization in order to reduce computational cost. Many new forms of approximation model have appeared…”
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Multi-Objective Optimization Applied to the Matching of a Specified Torque-Speed Curve for an Internal Permanent Magnet Motor by Ray, S., Lowther, D.A.

“…Traditionally, the objective function used for optimizing the design of an internal permanent magnet motor (IPM) has maximized efficiency or torque for a…”
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Local Electromagnetic Force Computation in the Presence of Numerical Field Errors by Min Li, Lowther, D.A.

“…Several approaches exist for the evaluation of force distributions in electromagnetic devices. The local virtual work based stresses derived from the…”
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A Meshless Method for Electromagnetic Field Computation Based on the Multiquadric Technique by Guimaraes, F.G., Saldanha, R.R., Mesquita, R.C., Lowther, D.A., Ramirez, J.A.

“…A meshless method for electromagnetic field computation is developed based on the multiquadric interpolation technique. A global approximation to the solution…”
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A Hybrid Design Model for Electromagnetic Devices by Jun Ouyang, Lowther, D.A.

“…Case-based reasoning (CBR) is an attractive approach to the design of electromagnetic (EM) devices because it draws upon experiential knowledge to tackle new…”
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The application of the research work of James Clerk Maxwell in electromagnetics to industrial frequency problems by Lowther, D.A, Freeman, E.M

“…Faraday's work inspired the development of electrical motors and generators. Until Maxwell pointed out the significance of Ampere's Law, there was no rigorous…”
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Optimization of Cost Functions Using Evolutionary Algorithms With Local Learning and Local Search by Guimaraes, F.G., Campelo, F., Igarashi, H., Lowther, D.A., Ramirez, J.A.

“…Evolutionary algorithms can benefit from their association with local search operators, giving rise to hybrid or memetic algorithms. The cost of the local…”
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Multiobjective approaches for robust electromagnetic design by Guimaraes, F.G., Lowther, D.A., Ramirez, J.A.

“…Robust optimization problems are inherently multiobjective, because the designer searches for compromise solutions between the mathematical model and possible…”
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A novel scheme for material updating in source distribution optimization of magnetic devices using sensitivity analysis by Dong-Hun Kim, Sykulski, J.K., Lowther, D.A.

“…A novel material updating scheme, which does not require intermediate states of a material used, is presented for source distribution optimization problems. A…”
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Smooth Boundary Topology Optimization for Electrostatic Problems Through the Combination of Shape and Topological Design Sensitivities by Dong-Hun Kim, Soo Bum Lee, Byung Man Kwank, Heung-Geun Kim, Lowther, D.A.

“…This paper presents a new methodology for topology optimization in which the topology of the design domain considered may change during the shape optimization…”
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Efficient force calculations based on continuum sensitivity analysis by Dong-Hun Kim, Lowther, D.A., Sykulski, J.K.

“…Using continuum design sensitivity analysis (CDSA), in conjunction with the virtual work principle, equations have been derived for calculating forces without…”
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Heterogeneity and Loosely Coupled Systems in Electromagnetic Device Analysis by Almaghrawi, A., Lowther, D.A.

“…We present a system architecture and a set of control techniques that allow heterogeneous software analysis tools to collaborate intelligently and…”
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Efficient Global and Local Force Calculations Based on Continuum Sensitivity Analysis by Dong-Hun Kim, Lowther, D.A., Sykulski, J.K.

“…Equations derived from the continuum design sensitivity analysis (CDSA), in conjunction with the material derivatives for a continuous medium and using the…”
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A Sensitivity Approach to Force Calculation in Electrostatic MEMS Devices by Min Li, Dong-Hun Kim, Lowther, D.A., Sykulski, J.K.

“…This paper presents a novel method for the computation of force in an electrostatically operated microelectromechanical systems (MEMS) device. The approach is…”
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Automated design of magnetic devices by optimizing material distribution by Dyck, D.N., Lowther, D.A.

“…This paper presents a method for automatic design of magnetic devices. The process can be used to determine both the topology and shape of the required device,…”
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On the creation of a generalized design optimization environment for electromagnetic devices by Mohammed, O.A., Lowther, D.A., Lean, M.H., Alhalabi, B.

“…When optimizing designs for practical electromagnetic problems, the number of design constraints and variables is increased drastically. The construction and…”
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A sensitivity-driven parametric electromagnetic design environment by Weicker, P.J., Lowther, D.A.

“…The paper describes a design environment for electromagnetic devices and systems which links the concepts of variational geometry with sensitivity analysis…”
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Simulation of a miniature DC motor: Investigating the use of haptics and sound in detecting ripple torque by Ahmad, Y., Afanah, A., Lowther, D.A.

“…The numerical analysis of electromagnetic devices can generate large volumes of data describing the performance of the device. To date, this information has…”
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