【正文】 畢業(yè)設(shè)計(jì) (論文 )有關(guān)外文翻譯 院 系： 機(jī)械 工程學(xué)院 專 業(yè)： 11 接本 （ 2）班 姓 名： 學(xué) 號： 104611252077 指導(dǎo)教師： 完成時(shí)間： 2021 年 05 月 1 日 1 緒論 選題的背景及意義 隨著汽車發(fā)動機(jī)轉(zhuǎn)速和功率的不斷提高，熱負(fù)荷也愈來愈大，對冷卻系統(tǒng)的要求也越來越高，人們對包括散熱器在內(nèi)的冷卻系統(tǒng)的研 究愈加重視，新技術(shù)、新材料不斷涌現(xiàn)。汽車鋁散熱器產(chǎn)品的優(yōu)勢體現(xiàn)在輕量化、可靠性高、價(jià)格低以及生產(chǎn)環(huán)保，整車廠采用鋁水箱替代原有銅水箱是汽車散熱器技術(shù)發(fā)展的必然趨勢。目前，汽車散熱器正朝著輕型、高效、經(jīng)濟(jì)的方向發(fā)展，國內(nèi)乘用車產(chǎn)品90%以上采用的是鋁散熱器，在商用車上的使用近年也陸續(xù)采用并有擴(kuò)大的趨勢。 因此如何提高散熱器的傳熱效能是一個(gè)綜合性的經(jīng)濟(jì)效益問題，應(yīng)通過技術(shù)經(jīng)濟(jì)比較后確定。在提高散熱器的散熱效率的情況下同時(shí)考慮降低散熱器的散熱阻力，合理選擇使用板片材質(zhì)和橡膠密封墊材質(zhì)，使用正確的安裝方法，才可保證 設(shè)備安全運(yùn)行，延長設(shè)備的使用壽命。通過計(jì)算機(jī)的模擬，可以使管帶式熱器性能更為優(yōu)越，結(jié)構(gòu)更加合理，經(jīng)濟(jì)性更強(qiáng)。另一方面，現(xiàn)代計(jì)算機(jī)技的快速發(fā)展和進(jìn)步也為管帶式散熱器的優(yōu)化設(shè)計(jì)提供了強(qiáng)大的技術(shù)支持，所以管帶式散熱器的優(yōu)化設(shè)計(jì)對于現(xiàn)代諸多工業(yè)的可持續(xù)發(fā)展有著深遠(yuǎn)的意義。 1 Introduction Background and Significance topics Power continues to increase, more and more large heat load on the cooling system requirements are also increasing , people including the radiator cooling system pay more attention to research , new technologies , new materials emerging. The advantages of automotive aluminum radiator products is reflected in the lightweight , high reliability , low prices and the production of environmentally friendly vehicle plant to replace the original copper aluminum radiator auto radiator tank is the inevitable trend of technological development . Currently, the auto radiator is moving light , efficient and economic direction, more than 90% of domestic passenger car is aluminum radiator, in recent years, the use of mercial vehicles have gradually adopted and is growing . Therefore, how to improve the heat transfer performance of the heat sink is a prehensive economic issues , through technical and economic parison OK. Improve the efficiency of the heat sink in the case of taking lower radiator cooling resistance , a reasonable choice to use Plate material and rubber gasket material, using the correct installation method can ensure the safe operation of equipment , extend equipment life . Through puter simulation, you can heat the pipe band performance is more superior, more rational structure , economy stronger .On the other hand , the rapid development of modern puter technology and progress but also for the optimization of the radiator pipe belt design provides a strong technical support, so pipe radiator with the optimal design for the modern sustainable industrial development has a number of farreaching significance . 車用散熱器的分類 能滿足某種規(guī)定工藝的要求使得熱量從熱流體到冷流體傳遞的裝置被稱為換熱器。換熱器的分類方法有很多，最基本的是按照工作原理來分：通?？煞譃榛?zé)崾?、混合式和間壁式三大類?；?zé)崾綋Q熱器多用于空氣預(yù)熱。一般是將金屬和磚類物體做成流道，熱流體和冷流體交替地流過同一個(gè)通道，并盡量避免混合。在混合式換熱器中全部流體均勻地處于同溫同壓下離開換熱器 。這種換熱器雖然換熱效率高，但因兩種流體的相互混合，故其在應(yīng)用上受到一定的限制。間壁式換熱器中，高溫流體和低溫流體由壁面間隔分別位于壁面的兩側(cè)，熱量通過壁面進(jìn)行傳遞。 Classification of car radiator To meet the requirements of a process that provides the heat from the hot fluid to the cold fluid transfer device is called the heat exchanger. Classification of heat exchangers there are many ways , the most basic working principle is based on points : usually divided into a heat recovery , hybrid and partitioned three categories. Recuperative heat exchanger used for air preheating . Generally is made of metal and brick like object flow channel , alternately hot and cold fluids flow through the same channel , and try to avoid mixing .In a hybrid heat exchanger fluid evenly in all the same temperature and pressure leaving the heat exchanger . While this heat exchanger efficiency is high, but the two fluids are mixed , so its application subject to certain restrictions . Recuperative heat exch