Design and Multiobjective Optimization of Magnetorheological Damper considering the Consistency of Magnetic Flux Density

Dong, Zhiwei; Feng, Zhimin; Chen, Yuehua; Yu, Kefan; Zhang, Gang

doi:10.1155/2020/7050356

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…that is, if one objective function was improved, another objective function reduction is required as the cost; hence, solutions A and B of the multiobjective optimization problem were called noninferior solutions or Pareto optimal solutions. e Pareto optimal solution was a set in which each Pareto optimal solution was only a noninferior solution, and the multiobjective optimization problem searched for these Pareto optimal solutions [47].…”

Section: Optimal Layout Methods For Mr Dampersmentioning

confidence: 99%

Study on the Semiactive Control and Optimal Layout of a Hydropower House Based on Magnetorheological Dampers

Yan

et al. 2021

Mathematical Problems in Engineering

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With the continuous development of hydropower stations, the capacities and the heads of hydro generator units are increasing, and the plant vibration problem is becoming more and more serious. A numerical simulation method for the vibration reduction control of magnetorheological (MR) dampers suitable for large-scale complex structures was proposed. The method is simple and easy to implement, and the semiactive control of the MR damper could be achieved by adjusting the current switch and size. On the basis of a numerical simulation, a mathematical model for the optimal layout of an MR damper device was established. The objective function was the vertical velocity and the vertical acceleration response of the generator floor. The results showed that the proposed semiactive control numerical simulation method could be applied to the vibration control of the hydropower plant structure, and the vertical velocity and vertical acceleration were reduced by 10.96% and 12.90%, respectively, compared with those without structural vibration control. At the same time, the proposed optimized layout method was effective and feasible, and the damping effect of the MR damper could be effectively improved through the optimized layout.

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Section: Optimal Layout Methods For Mr Dampersmentioning

confidence: 99%

Study on the Semiactive Control and Optimal Layout of a Hydropower House Based on Magnetorheological Dampers

Yan

et al. 2021

Mathematical Problems in Engineering

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“…response surface method [16][17][18], tolerance constraints [19], dynamical system constraints [20], and b-spline constraints [21]), and slower convergence (e.g. genetic algorithms [22][23][24][25] and their derivative algorithms NSGA-II [26] and NSGA-III [27,28]). These constraints increase processing complexity and make satisfying asymmetry and other performance measures difficult.…”

Section: Introductionmentioning

confidence: 99%

Structural design and multi-objective optimization of a novel asymmetric magnetorheological damper

Liang,

Fu,

et al. 2024

Smart Mater. Struct.

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The MRD with continuously adjustable damping, small compression, and large extension for asymmetric output may improve all-terrain vehicle (ATV) impact resistance and vibration reduction performance in a variety of conditions. A novel conical flow channel asymmetric MRD (CFC-MRD) is proposed to solve the structure complexity stroke sacrifice, and lack of failure protection concerns in currently studied asymmetric MRD structures. In the design, the non-parallel plate magnetic circuit characteristics of CFC-MRD are investigated, including theoretical analysis and finite element modeling, and the correctness of the model is proved by testing. Considerations in multi-objective optimization include special performance imposing extra restrictions, and making the work more complicated and prone to local optima. To address this, the Nelder-Mead approach is utilized, which decreases the complexity of the optimization model while simultaneously managing performance conflicts. A collaborative optimization strategy employing Comsol and Matlab tools is applied to improve optimization efficiency. The greatest difference between theoretical optimized values and real values is less than 6.77% in the experiments, showing the efficiency of the CFC-MRD structure design and optimization process.

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“…In order to improve the mechanical performance of multicoil MR damper, the damping force and dynamic range were the optimization goals, and the external geometric 1 size of the damper was used as a constraint variable to optimize the internal geometrical size of the MR damper. 7,8 Zhang et al 9 proposed a new type of pumped MR damper, and used a fast multi-objective genetic algorithm to optimize the structural parameters. The results showed that the optimized MR damper can improve dynamic performance and heat dissipation performance.…”

Section: Introductionmentioning

confidence: 99%

Study on the integrated structure/control design method of magnetorheological damper for improving vehicle posture

Deng

Wei

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part K:

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In order to achieve a good match between magnetorheological (MR) damper and vehicle Noise Vibration and Harshness (NVH) quality and improve vehicle posture while driving, an integrated design method of MR damper structure/control for vehicle vibration suppression was proposed considering the coupling effect between MR damper structure parameters and controller parameters. A controller was designed to control the damping force generated by the tapered channel MR damper. Furthermore, the damping force expression of the tapered flow mode MR damper was derived, and the damping force was introduced into the vehicle dynamics model. In order to improve the vehicle posture, an integrated structure/control platform combining response surface model, current controller and vehicle dynamics model was established. Based on integrated platform, the vehicle dynamics model and Fourier transform were adopted to extract the time-frequency characteristics of the design objective under different working conditions. In the optimization process, the damper structure was optimized by taking the time domain values as the constraints and the frequency domain values as the optimization goals. The results show that the proposed integrated design method of MR damper can obtain its global optimal structural parameters under different driving conditions. The acceleration root mean square (RMS) values and frequency domain values of vehicle were both reduced to varying degrees, achieving the purpose of improving the vehicle posture.

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Design and Multiobjective Optimization of Magnetorheological Damper considering the Consistency of Magnetic Flux Density

Cited by 11 publications

References 22 publications

Study on the Semiactive Control and Optimal Layout of a Hydropower House Based on Magnetorheological Dampers

Study on the Semiactive Control and Optimal Layout of a Hydropower House Based on Magnetorheological Dampers

Structural design and multi-objective optimization of a novel asymmetric magnetorheological damper

Study on the integrated structure/control design method of magnetorheological damper for improving vehicle posture

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