Dynamic modeling of magnetic suspension isolator using artificial neural network: a modified genetic approach

Song, Chunsheng; Hu, Yefa; Xie, Shane; Zhou, Zude

doi:10.1177/1077546311433608

Cited by 6 publications

(5 citation statements)

References 19 publications

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“…Magnetic suspension is now very good candidate for non-contact object manipulation, automated assembly process, material handling, pure material processing, measure viscosity, mixed waste separation process in recent time. Some optimization study is based on controller optimization for different systems [1,2]. With the advancement and availability of computers FEM (Finite Element Methods) are used increasingly in designing electromagnetic suspension systems [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

Hasan¹,

Tushar²,

Rahman³

et al. 2019

Acta electron. Malays.

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An electromagnet and a float are needed to be designed for a magnetic suspension system. In this paper an optimized design of an electromagnet is being carried out based on minimum flux leakage and maximum amount of force that can be imparted on the float. This paper also compares different designs to find out advantages and disadvantages of these designs. Design starts from a simple and naïve design of electromagnet and then gradually improved until a satisfactory design is obtained. Different shapes of floats were also considered for an optimum design of float. Electromagnetic analysis is carried with commercial FEM (Finite Element Method) software to calculate different parameters of design. Later the result from the FEM software is verified by analytical calculation.

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Section: Introductionmentioning

confidence: 99%

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

Hasan¹,

Tushar²,

Rahman³

et al. 2019

Acta electron. Malays.

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“…Authorized by the US Navy, magnetic suspension vibration isolators were applied to floating raft isolation system, and active theories and control simulation experiments were studied, with good active vibration isolation effect [14,15]. Theoretical electromagnetic force model of the magnetic suspension vibration isolator with single excitation source according to measured data was modified [16].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is difficult to build a mathematical model which meets the requirements with the analysis method. Experimental data include all information of the model and the use of model identification method in the experimental data is an effective way to solve such issues [16,17]. The least-squares method is the method which determines the parameter of system model by minimizing square and function of the generalized error.…”

Section: Introductionmentioning

confidence: 99%

PID Control of Multisources Complex Excitations Active Vibration Isolation System: An Improved Particle Swarm Optimization Algorithm

Song

Jiang

Zhang

2016

Shock and Vibration

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Active vibration isolation technology is the key technique to solve the vibration isolation problems related to the multisources complex excitations vibration isolation system. The electromagnetic actuators-based multisources complex excitations active vibration isolation system is built. Additionally, in view of the complex structure and strong coupling of the system, the least-squares method to identify and obtain the mathematical model of the vibration isolation system is adopted. Furthermore, this paper also sets up the acceleration feedback-based PID control model for multisources complex excitations active vibration isolation system, proposes an improved particle swarm optimization (PSO) algorithm of dynamic inertia weight factors used to optimize parameters of the built PID control model, and conducts simulation analysis. The simulation results show that, compared with the passive system before the control, the multisources complex excitations active vibration isolation system under the PID control has the far less peak-to-peak amplitude of acceleration which is transmitted to the foundation and has the much better vibration isolation effect. Finally, the paper conducts experimental verification, which demonstrates that active vibration control effect is identical to the simulation results and the vibration control effect is significantly improved.

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“…Another good application of the magnetic levitation system is the magnetic actuator [10]. The magnetic actuator can generate non-contact force to reduce the vibration transmission no matter it is high frequency vibration or low frequency vibration, so it can be well used for vibration isolation [9] [10]. However, the magnetic levitation systems are quite unstable and nonlinear in the open-loop [2].…”

Section: Introductionmentioning

confidence: 99%

Stability enhancement of magnetic levitation ball system with two controlled electomagnets

2015

2015 Australasian Universities Power Engineering Conference (AUPEC)

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Magnetic levitation ball system is a highly nonlinear and unstable system. If the system is linearised at the equilibrium point, the achievable balance range of the magnetically levitated ball is very short with one electromagnet. This paper presents an improved magnetic levitation ball system, that contains two electromagnets, where one electromagnet is set above the magnetic ball for pulling, and another one is set under the magnetic ball for pushing. In addition, this paper applies a 2-DOF (degree-of-freedom) PID (proportional-integral-derivative) controller instead of 1-DOF PID for the control of the two electromagnets so that they can work corporately to make the magnetic ball levitate in the air. These improvements not only increase the balance range of the ball, but also make the magnetic levitation ball system more stable. The effectiveness of the proposed system is further validated by both numerical simulations and real experiments. Abstract-Magnetic levitation ball system is a highly nonlinear and unstable system. If the system is linearised at the equilibrium point, the achievable balance range of the magnetically levitated ball is very short with one electromagnet. This paper presents an improved magnetic levitation ball system, that contains two electromagnets, where one electromagnet is set above the magnetic ball for pulling, and another one is set under the magnetic ball for pushing. In addition, this paper applies a 2-DOF (degree-of-freedom) PID (proportional-integral-derivative) controller instead of 1-DOF PID for the control of the two electromagnets so that they can work corporately to make the magnetic ball levitate in the air. These improvements not only increase the balance range of the ball, but also make the magnetic levitation ball system more stable. The effectiveness of the proposed system is further validated by both numerical simulations and real experiments.

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Dynamic modeling of magnetic suspension isolator using artificial neural network: a modified genetic approach

Cited by 6 publications

References 19 publications

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

PID Control of Multisources Complex Excitations Active Vibration Isolation System: An Improved Particle Swarm Optimization Algorithm

Stability enhancement of magnetic levitation ball system with two controlled electomagnets

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