Abstract
Traditional linear motor optimization methods typically use analytical models combined with intelligent optimization algorithms. However, this approach has disadvantages, e.g., the analytical model might not be accurate enough, and the intelligent optimization algorithm can easily fall into local optimization. A new linear motor optimization strategy combining an R-deep neural network (R-DNN) and modified cuckoo search (MCS) is proposed; additionally, the thrust lifting and thrust fluctuation reductions are regarded as optimization objectives. The R-DNN is a deep neural network modeling method using the rectified linear unit (RELU) activation function, and the MCS provides a faster convergence speed and stronger data search capability as compared with genetic algorithms, particle swarm optimization, and standard CS algorithms. Finally, the validity and accuracy of this work are proven based on prototype experiments.
Highlights
Linear motors can convert electrical energy into mechanical energy for linear motion
The traditional parameter optimization method for a linear motor is usually an analytical model combined with an intelligent optimization algorithm
(3) The R-deep neural network (R-deep neural network (DNN)) model is trained by an error back propagation algorithm (BP algorithm), Wi and bi are updated by the Stochastic gradient descent method
Summary
Linear motors can convert electrical energy into mechanical energy for linear motion They have advantages in regards to their small size, rapid dynamic response, and high positioning accuracy. They are widely used in industrial automation [1,2,3,4,5]. These parameter optimization methods (based on analytical models and optimization algorithms) have important reference value for the study of linear motor. The effectiveness of the proposed optimization design method is verified, based on experiments
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