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A novel concept of modular bistable electromagnetic actuator in valve operation is numerically analysed, designed and experimentally tested. The actuator takes advantage of permanent magnets for assuring stable positions of the valve body and field coils for control of the valve operation. The paper presents the basic concept of the actuator together with its numerical investigation for the case of...
Simulation of the planar magnetic actuation of ferromagnetic bodies is proposed and experimentally verified in the framework of the system for precise positioning of miniature passive robots with two degrees of freedom. Major goal of presented development is to balance computational effort of the simulation with complexity of computational problem. Proposed methodology is developed for efficient simulation...
The paper deals with a model-based approach to fault detection in the framework of electromagnetic actuator in valve operation and with its experimental validation. The forward uncertainty propagation for the mathematical model of the actuator is tested to determine probability of faultless operation under aleatoric and epistemic uncertainties. Afterwards, the six sigma approach is used by the control...
Bayesian optimization approach to electromagnetic design under uncertainty is addressed. Latin hypercube sampling is used as experimental design criterion for initial set of samples. This set of training samples is used in order to build a suitable surrogate model and also to estimate observed noise variance strongly affecting simulation and optimization results, especially in the case of stochastic...
A mathematical model of a machine based on the Parallel Path Magnetic Technology (PPMT) is presented. Its main goal is to find the optimal arrangement of the machine with respect to reaching its maximal torque and minimal rippling of its angular velocity. The optimization is based on the conjugate gradient method and is carried out iteratively. The solution of magnetic field required in each step...
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