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請高手幫我翻譯關于柴油機的摘要

較多，幫我翻譯部分也行，謝謝了。原文如下：本文以江蘇某企業YZ4DE型柴油機為具體對象，系統地探討了有限元法在內燃機結構設計中的應用，對該機型的機體組合件進行了全面深入的有限元計算和分析，涉及強度、剛度、接觸、熱應力、熱變形等諸多問題；共分析了兩種工況：預緊工況和工作工況（第2缸爆發）；提出了氣缸套變形的部分評價指標，重點考察了氣缸墊的密封性能。本文對推動有限元分析技術在我國內燃機結構設計中的實際應用將起到一定的促進作用。本文的主要內容和主要結論如下：1. 首先利用PRO/E軟件建立機體組件（機體、氣缸蓋、氣缸墊、氣缸套、主軸承蓋、飛輪殼、齒輪室連接板、水泵殼體、油底殼、左右懸置支架、后軸油封蓋等）的三維實體模型；然后利用Hypermesh軟件劃分有限元網格，保證了良好的網格質量，較好地協調了網格數量和計算精度之間的矛盾；最后利用ANSYS軟件對機體組件進行了有限元分析。2. 預緊工況下，缸蓋螺栓沉孔深度對氣缸套變形影響很大，適當的缸蓋螺栓沉孔深度有利于減小氣缸套變形。機體上氣缸筒鑄造偏心、缸蓋螺栓擰緊力矩等對氣缸套變形影響不是很大。3. 工作工況下，對于第2缸（爆發缸）來說，氣缸套徑向過盈量對氣缸套變形影響很大，減小氣缸套徑向過盈量，有利于減小氣缸套的變形，減小機體頂面不平度，但會增大機體上缸套止口平面的不平度；減小缸蓋螺栓預緊力對氣缸套變形影響很小，可減小機體頂面不平度和機體上缸套止口平面的不平度；適當減小缸蓋螺栓沉孔深可以減小氣缸套的變形，但會造成機體頂面不平度和機體上缸套止口平面不平度的增大。4. 工作工況下，氣缸墊能密封高壓燃氣和潤滑油，但是對冷卻水的密封性能較差，在機體后側推桿室附近可能有滲水現象。5. 工作工況下，第2、3、4對缸蓋螺栓立柱存在較大的y方向拉應力，主軸承蓋上存在較大的z方向拉應力，除此以外沒有發現存在較大拉應力的地方。: 問提問者：網友 | 2017-03-14

最佳回答

Please help me master the summary translation on Diesel Reward points: 30 - from the end of the issue there two days 7 hours More help me translate part also, I would like to thank the. Reads as follows: In this paper, an enterprise in Jiangsu YZ4DE diesel engine for specific targets, systematically explore the finite element method in the structural design of the internal combustion engine application, the body of the aircraft conducted a comprehensive portfolio of in-depth finite element calculation and analysis, involving strength, stiffness, contacts, and thermal stress, thermal deformation, and many other issues ; a total of two conditions: Preload working conditions and working conditions (No. 2 cylinder outbreak); proposed deformation of the cylinder sets of evaluation indicators, mainly inspected the cylinder gasket sealing performance. In this paper, the finite element analysis technology to promote China's internal combustion engine in the structural design of practical applications will play a role in promoting. The main contents and main conclusions are as follows: 1. The first to use PRO / E software components establishment of the body (body, cylinder head, cylinder pad, cylinder liner, the main bearing caps, Flywheel carcasses, gear Connection Board Room, Shell pump, oil pan, about mounting frame, rear axle oil blocks, etc.) 3D solid model; Then use Hypermesh software division finite element mesh to ensure a good grid quality, and better coordination of the grid between quantity and accuracy of contradictions; Finally using ANSYS software components of a body finite element analysis. 2. Preload condition, the cylinder head bolt-hole depth of deformation of the cylinder sets a great impact on the proper cylinder head bolt hole depth Shen cylinder liner to reduce the deformation. Casting on the cylinder body tube eccentric, cylinder head bolt tightening torque, and other deformation of the cylinder liner influence is not very great. 3. Working Conditions, No. 2 cylinder (the outbreak of cylinder), the cylinder sets of radial a surplus deformation of the cylinder sets a great impact on the cylinder liner reduced radial a surplus amount to reduce the deformation of the cylinder sets, the top surface of the body decreases roughness, but it will increase the body on the plane cylinder only mouth the roughness ; Preload reduced cylinder head bolt deformation of the cylinder liner little effect, the body can reduce the top surface roughness and cylinder body on the plane I ended roughness; Shen appropriate reduced cylinder head bolt hole deep can reduce the deformation of the cylinder sets, but will cause the body and the top surface roughness on the cylinder body only I roughness increases Plane . 4. Working Conditions, high-pressure cylinder pad can be enclosed gas and lubricants, but the cooling water sealing performance poor putters in the back room near the body may have leakages. 5. Work condition, the cylinder head bolts column 2,3,4 there is a big y direction of tensile stress, the main bearing canceled with the existence of large z direction tensile stress, there is a big addition found no tensile stress areas.: 回答者：網友

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