本文關(guān)鍵詞： 滾柱式葉片泵 定子曲線 轉(zhuǎn)子槽型 流量脈動(dòng) 側(cè)板材料 降噪　出處：《蘭州理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：通常,汽車(chē)是一個(gè)高速運(yùn)動(dòng)的復(fù)雜組合式噪聲源,汽車(chē)發(fā)動(dòng)機(jī)及其傳動(dòng)系統(tǒng)工作時(shí)產(chǎn)生的震動(dòng)、高速行駛中汽車(chē)輪胎在地面上的滾動(dòng)、車(chē)身與空氣的作用,都是產(chǎn)生汽車(chē)噪音的根本原因。根據(jù)汽車(chē)噪音對(duì)環(huán)境的影響,可將汽車(chē)噪音分為車(chē)外噪音和車(chē)內(nèi)噪音,車(chē)內(nèi)噪音是指通過(guò)汽車(chē)各機(jī)構(gòu)部分噪音輻射到車(chē)外空間的那部分噪音。主要包括發(fā)動(dòng)機(jī)噪音、排氣噪音、輪胎噪音、制動(dòng)噪音和傳動(dòng)系統(tǒng)噪音等。 汽車(chē)發(fā)動(dòng)機(jī)及其傳動(dòng)系統(tǒng)是公認(rèn)典型的噪聲來(lái)源,在國(guó)內(nèi)、國(guó)外對(duì)發(fā)動(dòng)機(jī)的性能都有了深入的研究,許多科研成果也得到實(shí)際應(yīng)用。在這種情況下,作為發(fā)動(dòng)機(jī)系統(tǒng)的供油源頭,電動(dòng)燃油泵的噪聲問(wèn)題在汽車(chē)中變得越來(lái)越突出。本文針對(duì)某發(fā)動(dòng)機(jī)系統(tǒng)的RX361型電動(dòng)燃油泵入手,以這種燃油泵上的滾柱式葉片泵為研究對(duì)象,做到從供油源頭入手控制噪聲。 本文討論了RX361型電動(dòng)燃油泵中的關(guān)鍵元件——滾柱式葉片泵噪聲控制問(wèn)題。針對(duì)電動(dòng)燃油泵,文章首先介紹了國(guó)內(nèi)外對(duì)電動(dòng)燃油泵的研究理論現(xiàn)狀,以及國(guó)內(nèi)外專家在降噪技術(shù)領(lǐng)域所取得的成果。其次,通過(guò)理論分析推導(dǎo)得出滾柱式葉片泵產(chǎn)生噪聲的原因,其噪聲來(lái)源歸結(jié)為機(jī)械噪聲和流體噪聲。其一,機(jī)械噪聲主要是指滾柱和定了間的撞擊噪聲；其二,流體噪聲主要是指輸出流量脈動(dòng)產(chǎn)生的油液脈沖噪聲。 影響滾柱式葉片泵噪聲大小的原因不同,所研究的對(duì)象就不同,本文針對(duì)以下幾點(diǎn)逐一分析：高性能的定子曲線、轉(zhuǎn)子槽的形狀、受泄露影響的實(shí)際輸出流量脈動(dòng)、以及薄弱零件(側(cè)板)的材料優(yōu)選問(wèn)題。 取RX361型滾柱式電動(dòng)燃油泵,借鑒國(guó)內(nèi)外專家針對(duì)葉片泵的研究方法,針對(duì)其上的滾柱式葉片泵,從其定子型線入手,配合改善轉(zhuǎn)子槽的形狀,準(zhǔn)確推導(dǎo)出油泵的實(shí)際輸出流量脈動(dòng),通過(guò)仿真優(yōu)選其上薄弱零件(側(cè)板)的材料。因此,有以下改進(jìn)方案： 1)優(yōu)化定子曲線,從流量均勻性(控制速度突變)、力學(xué)特性(控制加速度突變)和助振作用(控制加速度變化率突變)三方面考慮,得到高次定子曲線； 2)優(yōu)化轉(zhuǎn)子槽型,計(jì)算推導(dǎo)出槽型夾角,改善滾柱受力狀況； 3)推導(dǎo)定子、滾柱及側(cè)板之間的間隙和泄露關(guān)系,在考慮泄露流量的基礎(chǔ)上,得到準(zhǔn)確的實(shí)際流量脈動(dòng)關(guān)系式； 4)仿真分析出滾柱式葉片泵各零件在工作過(guò)程中的應(yīng)力應(yīng)變,優(yōu)化選擇薄弱零件(側(cè)板)材料,通過(guò)控制零件材料剛度來(lái)消除振動(dòng)。 通過(guò)上述一系列的改進(jìn)設(shè)計(jì),得到了光滑無(wú)沖擊的定子曲線；計(jì)算出滾柱滑動(dòng)摩擦力最小所對(duì)應(yīng)的轉(zhuǎn)子槽型夾角；推導(dǎo)出間隙流動(dòng)的流動(dòng)模型公式,有效分析了實(shí)際流量脈動(dòng)及控制方法；仿真分析出各零件應(yīng)力應(yīng)變,針對(duì)應(yīng)力最集中、應(yīng)變最大的側(cè)板,通過(guò)材料優(yōu)選的方法增大其強(qiáng)度,進(jìn)而增大了油泵整體強(qiáng)度。運(yùn)用有限元仿真軟件來(lái)模擬滾柱式葉片泵改型前后效果,其噪聲性能得到較好改善,獲得了理想的結(jié)果。
[Abstract]:in general , that automobile is a complex combined noise source with high - speed movement , the vibration generated during the operation of the automobile engine and the transmission system thereof , the rolling of the automobile tire on the ground , the action of the vehicle body and the air in the high - speed driving are the root cause of the automobile noise . The automobile engine and its transmission system are the typical sources of noise . In the domestic and abroad , the engine performance has been deeply studied , and many research achievements have been applied . In this case , the noise problem of the electric fuel pump becomes more and more prominent in the automobile . In this case , this paper starts with the RX361 type electric fuel pump of an engine system . In this paper , the roller type vane pump on the fuel pump is used as the research object to control the noise from the source of oil supply . This paper discusses the problem of noise control of the key element _ roller vane pump in RX361 type electric fuel pump . According to the electric fuel pump , the paper first introduces the current situation of the research theory of electric fuel pump at home and abroad , and the results obtained by experts at home and abroad in the field of noise reduction . The reason for influencing the noise size of the roller vane pump is different , and the object is different . In this paper , the following points are analyzed one by one : the high performance stator curve , the shape of the rotor groove , the actual output flow pulsation affected by leakage , and the material preference of the weak part ( side plate ) . Taking RX361 roller type electric fuel pump as a reference to the research method of vane pump at home and abroad , according to the roller vane pump at home and abroad , according to the roller type vane pump on it , the actual output flow pulsation of the oil pump is deduced , and the material of the weak part ( side plate ) is accurately derived by simulation . Therefore , the following improvement scheme is provided : 1 ) the stator curve is optimized , and the high - order stator curve is obtained from three aspects of flow uniformity ( control speed mutation ) , mechanical property ( control acceleration mutation ) and vibration - assisted action ( control acceleration change rate mutation ) ; 2 ) optimizing the groove type of the rotor , calculating the included angle of the groove type and improving the stress condition of the roller ; 3 ) deriving the clearance and leakage relation between the stator , the roller and the side plate , and obtaining the accurate actual flow pulsation relation on the basis of considering the leakage flow ; 4 ) The stress strain of each part of the roller vane pump is simulated and analyzed , and the weak part ( side plate ) material is selected , and the rigidity of the part material is controlled to eliminate vibration . Through the series of improved designs , a smooth and non - impact stator curve is obtained ; the included angle of the rotor groove corresponding to the minimum sliding friction force of the roller is calculated ; the flow model formula of the gap flow is calculated ;

【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH31;TB535

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 張生昌;方宏生;鄧?guó)櫽?鄭英臣;林彬彬;;電動(dòng)噴霧器用高效低噪雙作用滾柱轉(zhuǎn)子泵研制[J];排灌機(jī)械;2008年04期

2 楊國(guó)來(lái);王偉健;王連波;張守印;;低噪聲徑向柱塞泵的設(shè)計(jì)與研究[J];液壓與氣動(dòng);2007年02期

3 侯訓(xùn)波;孫玉清;宋昌平;陳紅兵;;葉片泵定子曲線及葉片對(duì)流量脈動(dòng)的影響[J];液壓與氣動(dòng);2008年08期

4 許仰曾;21世紀(jì)液壓泵的發(fā)展趨勢(shì)[J];機(jī)電信息;2001年05期

，

本文編號(hào)：1507425