【摘要】：傳統(tǒng)的結(jié)構(gòu)優(yōu)化設(shè)計方法不能結(jié)合各個學(xué)科的優(yōu)勢,也存在各種不確定性影響設(shè)計結(jié)果。目前柴油機(jī)連桿的優(yōu)化設(shè)計研究還主要應(yīng)用的是單學(xué)科的優(yōu)化分析技術(shù),對柴油機(jī)連桿使用多學(xué)科設(shè)計優(yōu)化的方法進(jìn)行研究的還比較少。 多學(xué)科設(shè)計優(yōu)化(Multidisciplinary Design Optimization-MDO)的設(shè)計思想和目的與現(xiàn)代柴油機(jī)設(shè)計的要求是完全吻合的,它可以提高產(chǎn)品質(zhì)量、降低成本、縮短設(shè)計周期。因此,運用多學(xué)科設(shè)計優(yōu)化方法在柴油機(jī)及其零部件設(shè)計中的前景是很可觀的,具有重要的現(xiàn)實意義和較高的學(xué)術(shù)價值。 本文以法國熱機(jī)學(xué)會(SEMT)研發(fā)的大功率四沖程16PA6STC艦用柴油機(jī)連桿為研究對象,利用結(jié)構(gòu)線性有限元理論分析連桿在最大壓縮工況和最大拉伸工況下連桿的受力狀態(tài),并在此基礎(chǔ)上結(jié)合多學(xué)科設(shè)計優(yōu)化理論對連桿進(jìn)行結(jié)構(gòu)優(yōu)化,采用ISIGHT多學(xué)科設(shè)計優(yōu)化軟件集成現(xiàn)在市場上多款流行的分析設(shè)計軟件包括ANSYS、Pro/Engineer、Nastran對連桿進(jìn)行約束靜力、模態(tài)條件下的結(jié)構(gòu)優(yōu)化,探索多學(xué)科設(shè)計優(yōu)化思想在柴油機(jī)零部件方面的應(yīng)用,并為連桿的進(jìn)一步改進(jìn)設(shè)計提供參考。
[Abstract]:The traditional structural optimization design method can not combine the advantages of various disciplines, and there are various uncertainties affecting the design results. At present, the research on the optimization design of diesel engine connecting rod is mainly based on the single subject optimization analysis technology, but there are few researches on the multi-disciplinary design optimization method of diesel engine connecting rod. The design idea and purpose of multidisciplinary design optimization (Multidisciplinary Design Optimization-MDO) is completely consistent with the requirements of modern diesel engine design. It can improve the product quality, reduce the cost and shorten the design period. Therefore, the prospect of applying multidisciplinary design optimization method in diesel engine and its parts design is considerable, which has important practical significance and higher academic value. In this paper, the connecting rod of a high-power four-stroke 16PA6STC marine diesel engine developed by the French Institute of Heat engine (SEMT) is taken as the research object. The structural linear finite element theory is used to analyze the stress state of the connecting rod under the maximum compression condition and the maximum tensile condition. On this basis, the structural optimization of the connecting rod is carried out by combining the multidisciplinary design optimization theory. The ISIGHT multidisciplinary design optimization software is used to integrate many popular analytical and design software, including ANSYS,Pro/Engineer,Nastran, to constrain the connecting rod. The structural optimization under the modal conditions explores the application of multidisciplinary design optimization in diesel engine parts and provides a reference for the further improvement of the design of connecting rod.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH112.1

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 孫喜龍;汽車被動安全性的模塊化建模方法與多目標(biāo)優(yōu)化研究[D];吉林大學(xué);2013年

相關(guān)碩士學(xué)位論文 前2條

1 張慶山;基于ISIGHT的集成技術(shù)的研究及在吊艇架上的應(yīng)用[D];華南理工大學(xué);2012年

2 何仕永;橋（門）式起重機(jī)小車架結(jié)構(gòu)輕量化設(shè)計與研究[D];西南交通大學(xué);2013年

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本文編號：2412076