本文關(guān)鍵詞：計及結(jié)構(gòu)特征的TEFC感應(yīng)電動機(jī)溫度敏感性研究　出處：《機(jī)械工程學(xué)報》2015年24期 　論文類型：期刊論文

  更多相關(guān)文章： 感應(yīng)電動機(jī) 結(jié)構(gòu)敏感性 三維溫度場 有限體積元法

【摘要】：為研究小型感應(yīng)電動機(jī)溫升分布與其結(jié)構(gòu)特性的數(shù)值關(guān)系,以一臺TEFC(Total enclosed fan-cooled)感應(yīng)電動機(jī)為研究對象,根據(jù)流體力學(xué)和傳熱學(xué)基本理論,并結(jié)合感應(yīng)電動機(jī)定子繞組散下線等結(jié)構(gòu)特點(diǎn),建立包含離心式風(fēng)扇及接線盒等結(jié)構(gòu)部件的三維流動與傳熱耦合數(shù)學(xué)模型及物理模型,采用有限體積元法,對其三維流體場及溫度場進(jìn)行耦合計算,在利用試驗(yàn)數(shù)據(jù)佐證本研究精準(zhǔn)性的基礎(chǔ)上,詳細(xì)地闡明電動機(jī)內(nèi)部溫升隨結(jié)構(gòu)特性的敏感性,結(jié)果表明,機(jī)殼底腳上的橫向拉筋對電動機(jī)內(nèi)部的溫升分布有著較大的影響,導(dǎo)致與其位置對應(yīng)的定子繞組存在溫升二次升高的現(xiàn)象,同時,轉(zhuǎn)子上具有自力性的風(fēng)扇對定子繞組端部表現(xiàn)出良好的散熱效果,以上結(jié)論為中小型電動機(jī)的機(jī)械結(jié)構(gòu)優(yōu)化提供了一定參考。
[Abstract]:In order to study the numerical relationship between the temperature rise distribution and the structural characteristics of small induction motors. A TEFC(Total enclosed fan-cooled induction motor is studied according to the basic theories of fluid mechanics and heat transfer. Combined with the characteristics of the stator winding of induction motor, the mathematical model and physical model of three-dimensional flow and heat transfer coupling including centrifugal fan and junction box are established, and the finite volume element method is used. On the basis of the experimental data to prove the accuracy of this study, the sensitivity of the internal temperature rise with the structure characteristics of the motor is explained in detail. The results show that the coupling calculation of the three-dimensional fluid field and the temperature field of the motor shows that the temperature rise of the motor is sensitive to the structural characteristics. The transverse tension on the bottom foot of the chassis has a great influence on the temperature rise distribution of the motor, which leads to the phenomenon of secondary rise in the stator winding corresponding to the position of the stator, and at the same time. The self-acting fan on the rotor has a good heat dissipation effect on the end of the stator winding. The above conclusion provides a certain reference for the optimization of the mechanical structure of the small and medium-sized motor.
【作者單位】： 哈爾濱理工大學(xué)電氣與電子工程學(xué)院;
【基金】：國家自然科學(xué)基金(51277045) 黑龍江省青年科學(xué)基金(QC2012C109) 黑龍江省普通高等學(xué)校新世紀(jì)人才(1254-NCET006) 黑龍江省教育廳基金(12531112)資助項(xiàng)目
【分類號】：TM346
【正文快照】： 0前言*籠型感應(yīng)電動機(jī)因其具有結(jié)構(gòu)簡單、運(yùn)行可靠以及制造成本低廉等特點(diǎn),所以應(yīng)用非常廣泛。由于軍事艦船需要面對極其復(fù)雜的海上環(huán)境,不僅要求其要有較好的穩(wěn)定性,還要有較高的效率,在動力艙內(nèi),工作空間小、熱源密度大導(dǎo)致電動機(jī)散熱 非常困難,而在電動機(jī)的設(shè)計過程中,常，

本文編號：1362616