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时间:2018-10-31
《发动机活塞连杆组—活塞详解毕业论文外文文献翻译及原文》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、毕业设计(论文)外文文献翻译文献、资料中文题目:发动机活塞连杆组一活塞详解文献、资料英文题目:文献、资料来源:文献、资料发表(出版)日期:院(部):专业:班級:姓名:学号:指导教师:翻译日期:2017.02.14毕业设计(论文)外文文献翻译文献、资料中文题目:发动机活塞连杆组一活塞详解文献、资料英文题目:文献、资料来源:文献、资料发表(出版)日期:院(部):专业:班級:姓名:学号:指导教师:翻译日期:2017.02.14Themachinepistonconnectingrodset-detailedexpositionofpis
2、tonThepistonconnectingrodsetiscomposedofthepiston,pistonwreath,pistonpin,connectingrod,connectingrodaxlebush,etc.I.effect:Theeffectofthepistonistobeartheairpressure,andpasstoconnectingrodtodrivethebentaxletorevolvethroughconnectingrodaxlebush,thepistoncopingisstillapa
3、rtoftheburningroom.Theworkcondition:Pistonworksundertheconditionofheat,highpressure,highspeed,andbadlubrication.Pistondirectlycontactswiththeheatair.Thetemperaturecanamounttoabove2500Ksinamoment.Thepistonisheatedseverely,buttheconditionofspreadingthehotisbad.Sowhileth
4、epistonworks,thetemperatureisveryhighandthecopingisuptothe600-700Ks:Andthetemperaturedistributesasymmetrically;Thepistoncopingbearsgreatairpressure,especiallythepressureisgreatestintherouteofdoingefficacy.Thegasolinemachineisuptothe3-5MPas,thedieselengineisuptothe6-9M
5、Pas.Thismakesthepistonproducepound,andbearthefunctionofthesidepressure.Therefore,thepistonshouldhaveenoughheat-proof,trytodecreasetheheatingarea,,strengthenthecoolingofthepiston,tomakethehighesttemperatureofthecopingdescend.Thepistonmovesatveryhighspeed(8-12ms/s)backa
6、ndforthintheaircylinder,andspeedchangesconstantly,Thisproducesverygreatinertialdint,makingthepistonbeargreatadditionalloadworkingundersuchbadcondition,thepistonwillbecomedeformedheatingpower.Atthesametime,itslittersthechemicalcorrosivepoweroftheburninggas.Inordertodes
7、cendtheinertialdintofbackandforth,wemusteasetheweightofthepistonaspossible.Pistonworksundertheconditionoftheheat,highpressure,highspeed(theaveragespeedcanamounttothe101115m/s),anditslubricantconditionisbadandthefricationbetweenthepistonandtheaircylinderwallisverygreat
8、.Inordertodescendthefriction,thesurfaceofthepistonsurfacemustbewear-resistant..Request:(1)Tohaveenoughrigidityandstrength,an
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