基于hyperworks汽車車架有限元分析外文翻譯-汽車設(shè)計(jì)-資料下載頁
2025-05-12 13:16本頁面
【導(dǎo)讀】何使用有限元方法分析和評(píng)估小型貨車的身體結(jié)構(gòu)。包括靜態(tài)，動(dòng)態(tài)，疲勞，抗撞性分析，優(yōu)化和靈敏度等等。在本文中，作者用的計(jì)算在強(qiáng)。度和剛度彎扭工況?？偨Y(jié)了強(qiáng)度和剛度評(píng)定標(biāo)準(zhǔn)小型貨車。然后進(jìn)行正常的模型。分析，以考慮輪胎的影響不平衡和發(fā)動(dòng)機(jī)怠速激發(fā)。計(jì)算和分析、驗(yàn)證、測(cè)試。像CAE這種前期分析方法的廣泛應(yīng)用是為了保證產(chǎn)品的全面質(zhì)量。眾所周知，汽車車身結(jié)構(gòu)非常復(fù)雜。該主體的關(guān)鍵是汽車零件的組裝。足夠的強(qiáng)度，以確保其疲勞壽命，還必須有足夠的強(qiáng)度以確保組裝和使用。當(dāng)具有合適的有合理動(dòng)態(tài)特性，用來控制震動(dòng)和噪音。此外，能夠縮短研發(fā)研發(fā)周期，降低成本。制變形值，我們必須考慮曲線過度和邊緣的變形值。動(dòng)態(tài)特性的研究目的是使主體結(jié)構(gòu)和主體模態(tài)最優(yōu)化。汽車車輪的激震頻率由行車速度決定。汽車的設(shè)計(jì)目的是在不同的約束下的最佳效果。優(yōu)化設(shè)計(jì)分析是一種正式的計(jì)劃或算法，用來尋找一個(gè)“最佳”的設(shè)計(jì)?？梢噪S時(shí)修改而增加不必要的成本。
【正文】 to achieve an optimum in passive safety, . to protect the car passengers during a crash as well as possible. This goal leads to increasing safety design efforts in the early development phases, synonymous with an increasing use of numerical simulation tools. The successful car body crashworthiness simulations lead to a new partnership between test and analysis teams with the goal to reduce cost and delay of new car model design. Except simulate front and side crash, extended simulation, such as occupant, airbags, steering wheel design, seat and seat belt design, kneebolster design, bumper design, etc. In our pany, we have simulated full frontal rigid barrier. Sensitivity and Optimization The aim of the car design is to get an optimal construction under different constraints. Design sensitivity analysis putes the rates of change of structural responses with respect to changes in design parameters. These design parameters are usually referred to as design variables and can be used to represent shell thickness, beam cross sectional dimensions, journal bearing sizes, and so on. Design optimization analysis is a formal plan or algorithm, that is used to search for a “best” design. Such as in automotive chassis design, we may want to investigate changes in cabin resonant frequencies given changes in panel thickness. These 共 5 頁 第 9 頁 rates of change are called design sensitivity coefficients. once these rates of change are known, optimization analysis can find the optimal set of panel thickness which yield the lowest level of cabin resonant frequencies. The other example: one part of vehicle’s frame structure was found to be overstressed. Unfortunately, it is too expensive to redesign that particular frame ponent at this stage in the engineering cycle. However, other structure ponent nearby can be modified without severe cost increases. There are nearly 90 structure design parameters can be manipulated. The design goal is to reduce the magnitude of the stresses by reducing the internal load to the overstressed member. 共 5 頁 第 10 頁 指 導(dǎo) 教 師 評(píng) 語 外文翻譯成績： 指導(dǎo)教師簽字： 年 月 日 注： 1。 指導(dǎo)教師對(duì)譯文進(jìn)行評(píng)閱時(shí)應(yīng)注意以下幾個(gè)方面：①翻譯的外文文獻(xiàn)與畢業(yè)設(shè)計(jì)（論文）的主題是否高度相關(guān)，并作為外文參考文獻(xiàn)列入畢業(yè)設(shè)計(jì)（論文）的參考文獻(xiàn)；②翻譯的外文文獻(xiàn)字?jǐn)?shù)是否達(dá)到規(guī)定數(shù)量（ 3 000 字以上）；③譯文語言是否準(zhǔn)確、通順、具有參考價(jià)值。
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