Active vibration isolation performance of the bistable nonlinear electromagnetic actuator with the elastic boundary

Yang, Kai; Tong, Weihao; Lin, Liquan; Yurchenko, Daniil; Wang, Junlei

doi:10.1016/j.jsv.2021.116588

Cited by 52 publications

(15 citation statements)

References 38 publications

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“…Mbayed [8] took into account factors, such as electromagnetic saturation effect, iron loss and high-order electromagnetic harmonics, and made closed-loop regulation on electromagnetic actuators based on experimental data, but did not consider electromagnetic heating phenomenon and the precision of output force. Yang [9] profoundly studied the broadband active vibration isolation of nonlinear electromagnetic actuator with elastic boundary, and proposed a new feedback control algorithm to control the input current of the actuator, which significantly reduced the broadband vibration transmission rate excited to the actuator. However, the optimization by the control algorithm may only be used as a compensation in electromagnetic actuator structure and is not universal, so it is a must to design and optimize from structure itself.…”

Section: Introductionmentioning

confidence: 99%

Structural Design and Analysis of New Electromagnetic Actuator

Zhang¹,

Sun²,

Zhu³

2023

J. Phys.: Conf. Ser.

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active vibration control can effectively restrain low-frequency line spectrum vibration. As an output end of control force, an electromagnetic actuator has the problem of low precision of output force and zero drift. Therefore, a new type of electromagnetic actuator is designed in this paper. The parametric modeling of the magnetic circuit structure is carried out, and it is verified that the magnetostatic attraction in direct current (DC) magnetic circuit is zero. Then, a calculation method of electromagnetic force in alternating current/direct current (AC/DC) magnetic circuit is deduced. The mechanical-electrical-magnetic-thermal multi-physical coupling field simulation of the electromagnetic actuator is carried out, which shows that the improved magnetic circuit structure effectively solves the zero drift, improves the precision of output force of the actuator, and allows the actuator to have lower electromagnetic heat output and electromagnetic loss.

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Section: Introductionmentioning

confidence: 99%

Structural Design and Analysis of New Electromagnetic Actuator

Zhang¹,

Sun²,

Zhu³

2023

J. Phys.: Conf. Ser.

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“…Hua et al [20] designed a control model for a hybrid isolation system based on a sliding mode variable structure algorithm, where the introduction of nonlinear stiffness effectively reduces vibration transmission rates. Yang et al [21] proposed a new feedback control law to study the broadband active vibration isolation performance of bi-stable nonlinear electromagnetic actuators, and deeply discussed the influence of control law parameters on the active vibration isolation performance.…”

Section: Introductionmentioning

confidence: 99%

Design of a low stiffness magnetic support for the carbon fiber pipe under low-frequency vibration and impulse

Xu,

Zhang,

et al. 2023

Eng. Res. Express

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Carbon fiber pipe of the laser guiding arms are highly sensitive to vibration, and external vibrational excitation can significantly degrade the accuracy of the optical path. Firstly, this paper proposes a carbon fiber optical arm pipe magnetic support system for low-frequency and impulse vibrations. The overall stiffness of the magnetic support is reduced by the cooperation of mechanical springs with positive stiffness and magnetic springs with negative stiffness. Secondly, based on analytical calculations of magnetic forces and finite element simulations, a comprehensive dynamic model of the system is established and solved. Finally, an experimental platform for the equipment is set up, and both frequency sweep response tests and impulse vibration response tests are conducted on the system. The results demonstrate that the proposed magnetic support with low stiffness effectively reduces the interference of low-frequency vibrations on the supported carbon fiber pipe, and the vibration amplitude of the carbon fiber pipe has significantly decreased by 67%.

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“…Zhang et al [48] utilized an optimized and varying sectional profle to improve the performance of a quasi-zero stifness (QZS) isolation system using the nonlinear and negative stifness generated by the snap-through efect of bistable structures. Yang et al [49] proposed a feedback control law to modulate the current input to the actuator of an active vibration isolation system. Te proposed control law greatly attenuated the transmissibility of the bistable nonlinear electromagnetic actuator from the base excitation.…”

Section: Introductionmentioning

confidence: 99%

Development of a Negative Stiffness Bistable Damper for Structural Vibration Control

Fan

Huang

Huo

2022

Shock and Vibration

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Linear dampers have been widely applied for suppressing the dynamic responses of structures to mitigate their damage. However, the primary disadvantage of the classical linear damper is that it is vulnerable to detuning, which has become an issue of great importance recently due to a great reduction in vibration control performance. To overcome the shortcoming, this study develops a negative stiffness bistable damper (NSBD) composed of a simple assembly consisting of a bistable buckling beam with a mass. Energy is dissipated through the transformation between the bistable states. The constitutive equation of the NSBD is derived to analyze the effects of the stiffness ratio, the arch-span ratio, and the damping ratio on its restoring capabilities. The vibration reduction effect of the NSBD is experimentally evaluated under different sinusoidal and seismic excitations in shaking table tests. The obtained results reveal that the NSBD can effectively restrain structural displacements.

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Active vibration isolation performance of the bistable nonlinear electromagnetic actuator with the elastic boundary

Cited by 52 publications

References 38 publications

Structural Design and Analysis of New Electromagnetic Actuator

Structural Design and Analysis of New Electromagnetic Actuator

Design of a low stiffness magnetic support for the carbon fiber pipe under low-frequency vibration and impulse

Development of a Negative Stiffness Bistable Damper for Structural Vibration Control

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