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1、華北電力人學(xué)碩十學(xué)位論文摘要風(fēng)電機(jī)組齒輪箱是整個(gè)風(fēng)電機(jī)組中的關(guān)鍵部件,由于安裝環(huán)境和運(yùn)行條件的影響,風(fēng)電機(jī)組齒輪箱成為發(fā)生故障最多的部件,實(shí)際運(yùn)行的壽命遠(yuǎn)達(dá)不到設(shè)計(jì)壽命,其主要原因就是齒輪和軸承等關(guān)鍵部件發(fā)生了疲勞破壞。本文以兩種典型的風(fēng)電齒輪箱為對(duì)象進(jìn)行疲勞特性仿真研究,主要研究?jī)?nèi)容包括:1)分析了風(fēng)電機(jī)組齒輪箱結(jié)構(gòu)特點(diǎn)及齒輪受載特點(diǎn),并探討了JxL電機(jī)組齒輪箱疲勞計(jì)算載荷譜的編制方法;2)以Micon750kW和Gamesa750kW兩種失速型風(fēng)電機(jī)組齒輪箱為對(duì)象,利用RomaxDesigner設(shè)計(jì)軟件建立了其三維實(shí)體模型,并對(duì)齒輪箱嚙合齒輪和軸承在
2、一定輸入載荷譜下的疲勞壽命進(jìn)行了仿真計(jì)算和分析;3)探討了影響風(fēng)電機(jī)組傳動(dòng)齒輪箱中齒輪及軸承壽命的一些主要因素,包括計(jì)算載荷譜、齒輪參數(shù)以及結(jié)構(gòu)尺寸等,并提出了一些提高齒輪箱主要零部件壽命的建議。關(guān)鍵詞:風(fēng)電機(jī)組,齒輪箱,疲勞,載荷譜,RomaxDesignerABSTRACTWindturbinegearboxisthekeycomponentofawindturbine.Becauseofthebadenvironmentandvariableoperatingconditions,windturbinegearboxwouldbethelarges
3、tcomponentofoccuringfailures.Theservicelifeislessthandesignlife.Themainreasonisthefatiguedamageofgearsandbearings.Inthispaper,thefatiguelifeofgearsandbearingsingearboxoftwotypical750kWwindturbineswereresearched,themainresearchcontentsinclude:1)Analyzingthecharacteristicsofwindtur
4、binegearboxes,anddiscussingthecaculationmethodsandproceduresofloadspectrum.2)Establishingthree—dimensionalsolidmodelsofthegearboxesofMicon750kWandGamesa750kWbymeansofRomaxDesigner,andcalculatingandanalyzingthefatiguecharacteristicsofgearsandbearingsofthegearboxesunderthegivenload
5、spectrum.3)Bydiscussingsomefactorsofinfluenceinggearsandbearingslife,includingcalculatingtheloadspectrum,parametersandstructuraldimensions,Iputforwardsomerecommendationsforimprovingfatiguelifeofmaincomponentsofwindturbinegearboxes.HongleiZhang(MechanicalManufacturingandAutomatics
6、)DirectedbyProf.YibingLiuKEYWORDS:windturbine,gearbox,fatigue,loadspectrum,RomaxDesigner華北電力大學(xué)碩士學(xué)位論文目錄中文摘要英文摘要第一章緒論????????????????????????????..11.1課題的研究背景與意義???????????????????????。11.2國(guó)內(nèi)外設(shè)計(jì)與制造現(xiàn)狀?????????????????????21.2.1風(fēng)電機(jī)組整機(jī)設(shè)計(jì)與制造現(xiàn)狀????????????????..21.2.2風(fēng)電機(jī)組齒輪箱設(shè)計(jì)與制造現(xiàn)狀?????
7、???????????.31.3風(fēng)電機(jī)組齒輪箱常見(jiàn)故障及預(yù)防措施????????????????..61.3.1齒面膠合?????????????????????????..61.3.2齒面疲勞??????????????????????????61.3.3齒根斷裂???????????????????????????????..71.3.4軸承損壞???????????????????????????81.3.5斷軸????????????????????????????????????81.4風(fēng)電機(jī)組設(shè)計(jì)標(biāo)準(zhǔn)?????????????????????
8、????????..81.4.1國(guó)際標(biāo)準(zhǔn)????????????????????