汽油機進氣歧管設(shè)計研究word

1、中北大學(xué)2013屆畢業(yè)設(shè)計說明書C14DVVTC14DVVT汽油機進氣歧管設(shè)計研究汽油機進氣歧管設(shè)計研究摘要進氣歧管是發(fā)動機進氣系統(tǒng)最關(guān)鍵的零部件，由于塑料進氣歧管的成本低、質(zhì)量輕等優(yōu)點，已逐漸取代了傳統(tǒng)的鋁合金鑄件歧管。為了提高發(fā)動機的效率和扭矩，改善發(fā)動機的性能，提高汽車的動力性和燃油經(jīng)濟性，針對C14DVVT發(fā)動機的進氣歧管進行設(shè)計研究。采用先進的計算機技術(shù)進行設(shè)計、計算及分析。先通過CATIA進行三維建模，然后導(dǎo)出進氣歧管內(nèi)部氣

2、流的計算域，再用商業(yè)化CFD軟件FIRE對進氣歧管內(nèi)部的氣體流動進行分析計算并提出改進意見，最后完成進氣歧管的設(shè)計。關(guān)鍵詞：進氣歧管設(shè)計，塑料，F(xiàn)IRE分析優(yōu)化中北大學(xué)2013屆畢業(yè)設(shè)計說明書第I頁共II頁第一章緒論...............................................................11.1引言...........................................

3、...................11.2進氣歧管綜述......................................................11.2.1進氣歧管的功用...............................................11.2.2進氣歧管的總成結(jié)構(gòu)以及組成...................................21.2.2.1汽油機進氣歧管........

4、.....................................21.2.2.2柴油機進氣歧管.............................................31.3發(fā)動機進氣歧管的發(fā)展現(xiàn)狀及趨勢....................................41.3.1進氣歧管發(fā)展現(xiàn)狀.............................................41.3.2塑料進

5、氣歧管的優(yōu)勢...........................................51.3.3塑料進氣歧管的材料及產(chǎn)品要求.................................61.3.4塑料進氣歧管制造工藝的選擇...................................71.4本課題研究意義及主要研究內(nèi)容......................................7第二章進氣歧管

6、的設(shè)計流程概述.............................................92.2概念設(shè)計.........................................................92.2.1概念設(shè)計階段輸入.............................................92.2.2概念設(shè)計階段輸出..............................

7、...............92.3布置設(shè)計..........................................................92.4詳細設(shè)計.........................................................10第三章進氣歧管結(jié)構(gòu)尺寸設(shè)計.............................................113.1設(shè)計原則.....

8、....................................................113.2參數(shù)選定.........................................................113.2.1穩(wěn)壓腔容積的選定............................................113.2.2歧管長度的選定.............................

9、.................123.2.3歧管直徑的選定..............................................12第四章進氣歧管的三維建模................................................144.1三維軟件CATIA介紹...............................................144.2CATIA建模......