Optimization and Resistance Characteristics of Permanent Magnet Eddy Current Damper under Intensive Impact Load

LI Zi-xuan;YANG Guo-lai;SUN Quan-zhao;WANG Li-qun;YU Qing-bo

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2018, Vol. 39 ›› Issue (4) : 664-671. DOI: 10.3969/j.issn.1000-1093.2018.04.005
Paper

Optimization and Resistance Characteristics of Permanent Magnet Eddy Current Damper under Intensive Impact Load

  • LI Zi-xuan， YANG Guo-lai， SUN Quan-zhao， WANG Li-qun， YU Qing-bo
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Abstract

To study and weaken the demagnetization effect of permanent magnet cylindrical eddy current damper on recoil resistance under intensive impact load, the recoil resistance in different number of permanent magnets is determined using permanent magnet equivalent model according to the working principle of the damper. An eddy current damper dynamic model is established to address the demagnetization effect. The influences of magnetic iron, inner and outer cylinder thicknesses on the resistance characteristics are analyzed. A recoil resistance optimization model is established by segmenting the inner cylinder. Optimized Latin hypercube is designed for experiment. Radial basis function neural network and NSGA-II algorithm are used for multi-objective optimization. The results indicate that platform effect of optimized recoil resistance curve is enhanced. The maximal recoil resistances are reduced by 12.6% and 2.3%, respectively, when demagnetization effect and the recuperator force dominate. The proposed optimization method and objects effectively weaken the demagnetization effect of eddy current damper in the recoil process.Key

Key words

gun / recoilmechanism / eddycurrentrecoilmechanism / intensiveimpactload / demagnetizationeffect / resistancecharacteristic / optimization

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LI Zi-xuan， YANG Guo-lai， SUN Quan-zhao， WANG Li-qun， YU Qing-bo. Optimization and Resistance Characteristics of Permanent Magnet Eddy Current Damper under Intensive Impact Load. Acta Armamentarii. 2018, 39(4): 664-671 https://doi.org/10.3969/j.issn.1000-1093.2018.04.005

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第39卷
第4期2018年4月兵工学报ACTA
ARMAMENTARIIVol.39No.4Apr.2018

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