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《開(kāi)關(guān)閥用超磁致伸縮致動(dòng)器磁場(chǎng)與伸長(zhǎng)量仿真分析》由會(huì)員上傳分享,免費(fèi)在線(xiàn)閱讀,更多相關(guān)內(nèi)容在工程資料-天天文庫(kù)。
1、2014年4月機(jī)床與液壓Apr.2014第42卷第7期MACHINET0OL&HYDRAULICSVo1.42No.7DOI:10.3969/j.issn.1001—3881.2014.07.027開(kāi)關(guān)閥用超磁致伸縮致動(dòng)器磁場(chǎng)及伸長(zhǎng)量的仿真分析張磊,李冬偉,楊朝舒,張文泉(1.軍械工程學(xué)院,河北石家莊050003;2.武漢軍械士官學(xué)校,湖北武漢430000)摘要:為滿(mǎn)足開(kāi)關(guān)閥行程要求,提出一種帶位移傳遞機(jī)構(gòu)的致動(dòng)器結(jié)構(gòu),研究其在不同頻率下的磁感應(yīng)強(qiáng)度分布和伸長(zhǎng)量。建立了電磁學(xué)計(jì)算模型,然后用AN
2、SYS軟件進(jìn)行仿真,并將數(shù)據(jù)導(dǎo)入MATLAB中進(jìn)行處理,得到不同頻率下磁場(chǎng)分布圖像;采用新方法平均徑向磁場(chǎng)并計(jì)算伸長(zhǎng)量。最后得到:隨電流頻率增加,渦流效應(yīng)增強(qiáng),棒和筒的磁感應(yīng)強(qiáng)度會(huì)降低;平均強(qiáng)度分布上棒兩端低中間高,筒上強(qiáng)度在遠(yuǎn)離輸出端處較低;棒的伸長(zhǎng)量始終高于筒。所得結(jié)論對(duì)于器件結(jié)構(gòu)設(shè)計(jì)具有指導(dǎo)意義。關(guān)鍵詞:開(kāi)關(guān)閥;超磁致伸縮致動(dòng)器;位移傳遞機(jī)構(gòu);磁感應(yīng)強(qiáng)度;伸長(zhǎng)量中圖分類(lèi)號(hào):TP391.9文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1001—3881(2014)7—099—4SimulationAnalysis
3、oftheMagneticFieldandElongationofGiantMagnetostrictiveActuatorforSwitchingValveZHANGLei,LIDongwei,YANGZhaoshu‘,ZHANGWenquan(1.OrdnanceEngineeringCollege,ShijiazhuangHebei050003,China;2.WuhanOrdnanceNon-commissionedOfficersSchool,WuhanHubei43o000,Chin
4、a)Abstract:Anewgiantmagnetostrictiveactuatorwithdisplacementtransmissionmechanismwaspresenttomeettherequirementsoftheswitchingvalvestroke.Thedistributionofmagneticinductionintensityandelongationofthegiantmagnetostrictiveactuatorunderdifferentfrequenc
5、ieswerestudied.Electromagneticcomputationalmodelwasestablished,andthenthedataobtainedbyANSYSsoft—waresimulationwereimposedintoMATLABforprocessingtheimagesofdifferentfrequencymagneticfield,andtheaverageradialmagneticfieldwasgottenbynewwaytocalculateth
6、eelongation.Theconclusionsare:theeddycurrentefectincreasesandthemag—neticinductiondensityoftherodandcylinderwillbereducedwiththecurrentfrequencyincreases;theaverageintensityoftherodatbothendsislowandthemiddleishigh,whilethecylinderislowwhenawayfromth
7、eoutput;theelongationoftherodisalwayshigherthanthatofcylinder.Theseconclusionsareofguidingsignificanceduringdevicedesign.Keywords:Switchingvalve;Giantmagnetostrictiveactuator;Displacementtransmissionmechanism;Magneticinductionintensi—ty;Elongation超磁致
8、伸縮材料隨外界磁場(chǎng)改變而尺寸變化,基大機(jī)構(gòu)以放大其位移,施加放大機(jī)構(gòu)后的致動(dòng)器雖放于超磁致伸縮材料的致動(dòng)器具有響應(yīng)快、頻帶寬等優(yōu)大了位移,但減小了輸出力、增大了尺寸,且柔性鉸勢(shì),工程上已用于制作微進(jìn)給裝置、微型馬達(dá)和平面鏈的疲勞強(qiáng)度有待考證。揚(yáng)聲器等”,新型產(chǎn)品擁有不同于以往產(chǎn)品的特文中研究的是開(kāi)關(guān)閥用驅(qū)動(dòng)器,為保證輸出位征。國(guó)內(nèi)外很多專(zhuān)家也研究了超磁致伸縮材料驅(qū)動(dòng)的移,設(shè)計(jì)一種位移傳遞機(jī)構(gòu),它可以疊加棒和筒上的液壓閥。該類(lèi)閥繼承了GMM應(yīng)變大、輸出力大和位移,并保證尺寸較小。超磁致伸縮材料的制