Space Mapping Optimization of a Cylindrical Voice Coil Actuator

Encica, L.; Makarovic, J.; Lomonova, E. A.; Vandenput, A.J.A.

doi:10.1109/tia.2006.882672

Cited by 42 publications

(2 citation statements)

References 6 publications

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“…The thrust force versus stroke length characteristics of three types of EMAs is different. When operated at a short stroke length, the thrust force of MCAs and MMAs is approximately constant [34,35], while that of SAs decreases significantly [36,37]. Thus, the excitation current applied for SAs must be considerably increased to compensate for the thrust force drop.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Electromagnetic Linear Actuators for Jet Dispensers

Tran

Hwang

2020

Applied Sciences

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Three electromagnetic-based linear actuators, namely a solenoid actuator (SA), a moving coil actuator (MCA), and a moving magnet actuator (MMA), are proposed for driving the needle in a jet dispenser. The total resistance force acting on the needle during operation, including the damping force, the friction force, the inertia force, the compression spring force, and the backpressure, are measured by an experimental model. The thrust force required to overcome this resistance force is then predicted for each actuator using finite element analysis (FEA) simulations. Simple two-dimensional models of the SA, MCA, and MMA are constructed using the same coil dimensions in every case in order to facilitate an objective comparison between them. Simulations in ANSYS Maxwell software are then performed to adjust the specific dimensions of each actuator structure in such a way as to generate the thrust force required to drive the needle in the jet dispenser with the minimum excitation current possible. The simulation results show that for a maximum needle driving frequency of 250 Hz and a stroke length of 0.5 mm, the excitation current required to generate the necessary thrust force is equal to 1.8 A and 1.9 A for the MCA and MMA models, respectively, when a return spring is not used, and 2.2 A, 3.8 A, and 4.1 A for the SA, MCA, and MMA models, respectively, when a return spring is employed. It is additionally shown that the thrust force drop of the MCA and MMA models is far less than that of the SA model, about 0.7%, 1.8%, and 61% for three models, respectively. Three preliminary designs for jet dispensers incorporating the proposed actuators are also generated for reference purposes.

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Section: Introductionmentioning

confidence: 99%

Design and Simulation of Electromagnetic Linear Actuators for Jet Dispensers

Tran

Hwang

2020

Applied Sciences

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“…Space mapping was originally applied in microwave engineering [7]- [11], but it has already proven its success in many other areas (e.g., [12]- [15]). Space mapping belongs to a broader family of surrogate-model-based optimization methods [16]- [21]; however, its distinctive feature is that the surrogate model is created through a physically based coarse model, but not by direct approximation of the available fine model data.…”

mentioning

confidence: 99%

Accelerated Microwave Design Optimization With Tuning Space Mapping

Koziel

Meng

Bandler

et al. 2009

IEEE Trans. Microwave Theory Techn.

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Abstract-We introduce a tuning space-mapping technology for microwave design optimization. The general tuning space-mapping algorithm is formulated, which is based on a so-called tuning model, as well as on a calibration process that translates the adjustment of the tuning model parameters into relevant updates of the design variables. The tuning model is developed in a fast circuit-theory based simulator and typically includes the fine model data at the current design in the form of the properly formatted scattering parameter values. It also contains a set of tuning parameters, which are used to optimize the model so that it satisfies the design specification. The calibration process may involve analytical formulas that establish the dependence of the design variables on the tuning parameters. If the formulas are not known, the calibration process can be performed using an auxiliary space-mapping surrogate model. Although the tuning space mapping can be considered to be a specialized case of the standard space-mapping approach, it can offer even better performance because it enables engineers to exploit their experience within the context of efficient space mapping. Our approach is demonstrated using several microwave design optimization problems.Index Terms-Computer-aided design (CAD), engineering optimization, space mapping, surrogate models, tuning.

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Space mapping algorithm with improved convergence properties for microwave design optimization

Koziel

2010

Int J RF and Microwave Comp Aid Eng

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Space mapping is one of the most efficient techniques for microwave design optimization. Still, it is well known that space mapping algorithms may suffer from convergence issues, which are consequences of certain fundamental features. In many cases, the space mapping algorithm quickly finds an acceptable solution, but then falls into oscillations with respect to the design variables and/or the objective function value; as a consequence, there are no clear criteria for terminating the optimization process. In this article, we investigate some techniques for improving the convergence properties of the space mapping algorithm, which are based on the general convergence results for such algorithms. Our approach is verified using several microwave design optimization problems.

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Space Mapping Optimization of a Cylindrical Voice Coil Actuator

Cited by 42 publications

References 6 publications

Design and Simulation of Electromagnetic Linear Actuators for Jet Dispensers

Design and Simulation of Electromagnetic Linear Actuators for Jet Dispensers

Accelerated Microwave Design Optimization With Tuning Space Mapping

Space mapping algorithm with improved convergence properties for microwave design optimization

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