本文關(guān)鍵詞：對(duì)置往復(fù)式摩擦磨損試驗(yàn)機(jī)研制及其試驗(yàn)，由筆耕文化傳播整理發(fā)布。

網(wǎng)友2982835315近日為您收集整理了關(guān)于對(duì)置往復(fù)式摩擦磨損試驗(yàn)機(jī)研制及其試驗(yàn)的文檔，希望對(duì)您的工作和學(xué)習(xí)有所幫助。以下是文檔介紹：Development of aContraposition Reciprocating Test Rig forTribological Study and Friction&Wear TestA thesis Submitted toDalian Maritime UniversityIn partial fulfillment of the requirements for the degree ofMaster of EngineeringByZhu Feng(Vehicle Operation Engineering)Thesis Supervisor:Professor Jiujun XuJune 2011帥3哪0㈣5Ⅲ5㈣9刪8川……●●ⅢY母:,耘大連海事大學(xué)學(xué)位論文原創(chuàng)性聲明和使用授權(quán)說明原創(chuàng)性聲明本人鄭重聲明:本論文是在導(dǎo)師的指導(dǎo)下,獨(dú)立進(jìn)行研究工作所取得的成果,撰寫成博/碩士學(xué)位論文==撾置往復(fù)述麈拯磨拯這殮扭硒劍區(qū)墓這驗(yàn)=:。除論文中已經(jīng)注明引用的內(nèi)容外,對(duì)論文的研究做出重要貢獻(xiàn)的個(gè)人和集體,均已在文中以明確方式標(biāo)明。本論文中不包含任何未加明確注明的其他個(gè)人或集體已經(jīng)公開發(fā)表或未公開發(fā)表的成果。本聲明的法律責(zé)任由本人承擔(dān)。學(xué)位論文作者簽名:盆葷學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者及指導(dǎo)教師完全了解大連海事大學(xué)有關(guān)保留、使用研究生學(xué)位論文的規(guī)定,即:大連海事大學(xué)有權(quán)保留并向國(guó)家有關(guān)部門或機(jī)構(gòu)送交學(xué)位論文的復(fù)印件和電子版,允許論文被查閱和借閱。本人授權(quán)大連海事大學(xué)可以將本學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索,也可采用影印、縮印或掃描等復(fù)制手段保存和匯編學(xué)位論文。同意將本學(xué)位論文收錄到《中國(guó)優(yōu)秀博碩士學(xué)位論文全文數(shù)據(jù)庫(kù)》(中國(guó)學(xué)術(shù)期刊(光盤版)電子雜志社)、《中國(guó)學(xué)位論文全文數(shù)據(jù)庫(kù)》(中國(guó)科學(xué)技術(shù)信息研究所)等數(shù)據(jù)庫(kù)中,并以電子出版物形式出版發(fā)行和提供信息服務(wù)。保密的論文在解密后遵守此規(guī)定。本學(xué)位論文屬于: 保密口在——年解密后適用本授權(quán)書。不保密日(請(qǐng)?jiān)谝陨戏娇騼?nèi)打“√")……:樣…名:乏杯日期:幺一,年7月,日中文摘要摘要缸套一活塞環(huán)是內(nèi)燃機(jī)中最重要的摩擦副之一,其工作性能直接決定內(nèi)燃機(jī)效率和可靠性。隨著人們對(duì)節(jié)能減排的呼聲愈來愈高,對(duì)內(nèi)燃機(jī)的效率和可靠性提出了更高的要求。因此深入研究缸套.活塞環(huán)的摩擦磨損規(guī)律,降低該摩擦副的摩擦功耗,減少其磨損量,對(duì)提高內(nèi)燃機(jī)效率,延長(zhǎng)內(nèi)燃機(jī)使用壽命都具有重要意義。本文針對(duì)缸套.活塞環(huán)摩擦學(xué)系統(tǒng),依據(jù)磨損形式.條件一致的原則,研制了對(duì)置往復(fù)式摩擦磨損試驗(yàn)機(jī),選擇PVD活塞環(huán)與硼磷合金鑄鐵缸套、松孔鍍鉻缸套,研究載荷、轉(zhuǎn)速、溫度對(duì)摩擦系數(shù)和磨損量影響規(guī)律,取得主要結(jié)論如下:1.研制的對(duì)置往復(fù)式摩擦磨損試驗(yàn)機(jī)可模擬缸套.活塞環(huán)典型工作環(huán)境,可在0---500r/min轉(zhuǎn)速內(nèi)無級(jí)可調(diào),長(zhǎng)時(shí)間加載穩(wěn)定,微量供油準(zhǔn)確可調(diào),試驗(yàn)結(jié)果重復(fù)性好。2.PVD活塞環(huán)與硼磷合金鑄鐵缸套及松孔鍍鉻缸套配對(duì)副的摩擦系數(shù)隨載荷的增大變化不明顯;隨轉(zhuǎn)速、溫度的升高,摩擦系數(shù)均下降。PVD活塞環(huán)與松孔鍍鉻缸套配對(duì)副摩擦系數(shù)高于合金鑄鐵配對(duì)副,鑄鐵磨損量高于松孔鍍鉻。3.硼磷合金鑄鐵缸套的磨損機(jī)理是珠光體首先黏著磨損脫落,磨損產(chǎn)物轉(zhuǎn)化為磨粒,磨損形式由黏著磨損轉(zhuǎn)化為磨粒磨損和黏著磨損的混合磨損;松孔鍍鉻缸套的磨損機(jī)理主要是應(yīng)力作用下的疲勞磨損。關(guān)鍵詞:摩擦磨損試驗(yàn)機(jī);缸套;活塞環(huán)英文摘要ABSTRACTCylinder-Piston ring is one of the most important friction pairs in bustion engine,which determines the efficiency and reliability.With the voice ofrising energy conservation,efficiency and reliability of the IC engine have been put on ahigher demand.Therefore,studying Cylinder-Piston ring friction law and wearmechanism has great significance in reducing the power consumption,improving theefficiency and extending engine life.In this paper,a contraposition Reciprocating Test Rig for Tribological Study hasbeen developed,by the principle of consistency of wear form-conditions.PVD pistonring,boron—phosphorus alloy cast iron cylinder and loose-hole coated chrome cylmderwere chosen to be studied in different loads,speeds,temperatures on the frictioncoefficient and wear.The main conclusions are as follows:1)The contraposition reciprocating test rig Can simulate the work conditions ofcylinder-piston ring system,revolving speed Can be adjusted smoothly at0--500r/min,load stable during long running time,precise micro-adjustable oil.2)The frietion coefficient of the two friction pairs did notchange significantly with theincreasing load,but the revolving speed and temperature decreased significantly.The friction coefficient of the pair of PVD piston rin爭(zhēng)曲∞me cylinder is higherthan the other pair,the wear of the alloy cast iron cylinder is higher.3)The wear mechanism of boron—phosphorus alloy cast iron cylinder is pearliticadhesion at first,then the wear products e abrasive,the

12>

  本文關(guān)鍵詞：對(duì)置往復(fù)式摩擦磨損試驗(yàn)機(jī)研制及其試驗(yàn)，由筆耕文化傳播整理發(fā)布。