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| Vibration reduction performance of damping sandwich transformer core |
| YAN Banshan1, WANG Xiaopeng1, XI Yanhui1, YE Qin2 |
1.School of Mechanical Engineering, Xian Jiaotong University, Xi’an 710049, China;
2.Wuxi Putian Iron Core Co., Ltd., Wuxi 214195, China |
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Abstract The vibration of transformer core seriously affects its production quality and service life.Here, aiming at the core vibration problem, a method to add elastic damping interlayer between adjacent transition layers of core was proposed.The finite element method was used to do modal analysis and harmonic response analysis of the core before and after adding damping interlayer, respectively.Vibrations of the core under excitation forces with different frequencies before and after adding damping interlayer were simulated numerically and verified with tests adding damping interlayer.Simulation and test results showed that adding damping interlayer can effectively reduce bending vibration of iron core caused by magnetostriction of silicon steel sheets; increasing thickness and layer number of damping interlayer can make the core vibration reduction effect more obvious; the study results provide a reference for guiding enterprises to produce iron cores with lower vibration.
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Received: 18 November 2019
Published: 15 May 2021
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［1］SNELL D.Measurement of noise associated with model transformer cores［J］.Journal of Magnetism and Magnetic Materials,2008,320(20):e535-e538.
［2］WIAK S, NAPIERALSKA-JUSZCZAK E, KUBIAK W, et al.Vibration analysis of small power transformer［J］.The International Journal for Computation and Mathematics in Electrical and Electronic Engineering,2010,29(4):1116-1124.
［3］SNELL D.Noise generated by model step lap core configurations of grain oriented electrical steel［J］.Journal of Magnetism and Magnetic Materials,2008,320(20):e887-e890.
［4］HILGERT T, VANDEVELDE L, MELKEBEEK J.Comparison of magnetostriction models for use in calculations of vibrations in magnetic cores［J］.IEEE Transactions on Magnetics, 2008, 44(6):874-877.
［5］HSU C H, LEE S L, LIN C C, et al.Reduction of vibration and sound-level for a single-phase power transformer with large capacity［J］.IEEE Transactions on Magnetics, 2015, 51(11): 1-4.
［6］祝丽花，杨庆新，闫荣格,等．电力变压器铁心等效磁致伸缩力的数值计算［J］．变压器，2012，49(6)：9-13．
ZHU Lihua, YANG Qingxin, YAN Rongge, et al.Numerical calculation of equivalent magnetostrictive force of power transformer core ［J］.Transformer, 2012, 49(6): 9-13.
［7］鲁殿国．优化和控制大型变压器铁心夹紧力降低本体噪声［J］．变压器，2012，49(3)：25-27．
LU Dianguo.Optimize and control large transformer core clamping force to reduce body noise ［J］.Transformer, 2012, 49(3): 24-27.
［8］韩芳旭.基于流固耦合方法的电力变压器电磁振动与噪声问题研究［D］.沈阳: 沈阳工业大学, 2016
［9］申丹.配电变压器的噪声控制技术研究与应用［D］.淄博: 山东理工大学, 2018
［10］孔庆奕, 李艳超, 安国庆,等.基于产品级铁心模型的变压器工艺系数研究［J］.变压器, 2018, 55(2):52-57.
KONG Qingyi, LI Yanchao, AN Guoqing, et al.Research on transformer process coefficient based on product grade core model ［J］.Transformer, 2018, 55(6): 52-57.
［11］陆玉婷.船用齿轮箱阻尼减振设计及其优化［D］.哈尔滨:哈尔滨工程大学, 2011.
［12］王婷.夹层阻尼圆锯片减振降噪研究［D］.天津:河北工业大学, 2013.
［13］杨阳.黏弹性阻尼材料及夹层板阻尼结构动态力学性能研究［D］.青岛:青岛理工大学.
［14］王康乐.黏弹性阻尼夹层板结构的声振特性研究［D］.镇江：江苏科技大学, 2014.
［15］王慧彩.黏弹性阻尼夹层板动力特性分析及模态实验研究［J］.船舶, 2005(5):11-16.
WANG Huicai.Dynamic characteristics analysis and modal experiment of viscoelastic damping sandwich plate ［J］.Ship, 2005(5): 11-16. |
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