本文選題：MDOE　切入點(diǎn)：非參數(shù)模型　出處：《空氣動(dòng)力學(xué)學(xué)報(bào)》2016年01期

【摘要】：MDOE風(fēng)洞實(shí)驗(yàn)方法能夠用相對(duì)于傳統(tǒng)實(shí)驗(yàn)方法更少的吹風(fēng)次數(shù),獲得更高精準(zhǔn)度的數(shù)據(jù)。為了解決現(xiàn)有基于參數(shù)模型的MDOE方法獲取較強(qiáng)非線(xiàn)性氣動(dòng)規(guī)律能力的不足,需要發(fā)展基于非參數(shù)模型的MDOE方法。本文對(duì)基于非參數(shù)模型的MDOE的形式實(shí)驗(yàn)設(shè)計(jì)方法進(jìn)行研究。通過(guò)"虛擬"風(fēng)洞實(shí)驗(yàn)的方法,對(duì)兩種常用的"空間填充設(shè)計(jì)"——拉丁超立方設(shè)計(jì)和均勻設(shè)計(jì)應(yīng)用于風(fēng)洞實(shí)驗(yàn)的適用性進(jìn)行對(duì)比,并在此基礎(chǔ)上發(fā)展了幾種對(duì)均勻設(shè)計(jì)的優(yōu)化改進(jìn)方法,可以進(jìn)一步提高樣本點(diǎn)設(shè)計(jì)質(zhì)量,使其滿(mǎn)足風(fēng)洞實(shí)驗(yàn)的要求。研究表明:均勻設(shè)計(jì)較拉丁超立方設(shè)計(jì)更為穩(wěn)健、均勻,更適合基于非參數(shù)模型的風(fēng)洞MDOE方法;在均勻設(shè)計(jì)方法基礎(chǔ)上,根據(jù)風(fēng)洞實(shí)驗(yàn)的特點(diǎn)發(fā)展了優(yōu)化方法,包括邊界點(diǎn)補(bǔ)充、樣本點(diǎn)密度調(diào)整和重復(fù)點(diǎn)設(shè)計(jì),能夠?qū)⒁延械?先驗(yàn)信息"應(yīng)用于實(shí)驗(yàn)設(shè)計(jì)中;所發(fā)展的形式實(shí)驗(yàn)設(shè)計(jì)方法所需的測(cè)量點(diǎn)要少于OFAT方法的測(cè)量點(diǎn)(如示例中所用的測(cè)量點(diǎn)數(shù)僅為OFAT方法的66.7%),且能夠充分和準(zhǔn)確地對(duì)較劇烈的非線(xiàn)性變化規(guī)律進(jìn)行采樣。本文對(duì)風(fēng)洞MDOE的形式實(shí)驗(yàn)設(shè)計(jì)方法的研究結(jié)果,為后續(xù)發(fā)展基于非參數(shù)模型的風(fēng)洞MDOE方法奠定了基礎(chǔ)。
[Abstract]:The MDOE wind tunnel experimental method can obtain more accurate data with less blowing times than the traditional experimental method. In order to solve the shortage of the existing MDOE method based on parameter model to obtain strong nonlinear aerodynamic laws. It is necessary to develop MDOE method based on nonparametric model. In this paper, the formal experimental design method of MDOE based on nonparametric model is studied. This paper compares the applicability of two common "space filling design"-Latin hypercube design and uniform design in wind tunnel experiments, and develops several optimization and improvement methods for uniform design. The design quality of sample points can be further improved to meet the requirements of wind tunnel experiments. The results show that the uniform design is more robust and uniform than the Latin hypercube design and is more suitable for the MDOE method based on non-parametric model. On the basis of uniform design method, the optimization method is developed according to the characteristics of wind tunnel experiment, including boundary point supplement, sample point density adjustment and repeated point design, which can be applied to the experimental design. The developed formal experimental design method requires fewer measuring points than the OFAT method (for example, the measurement points used in the example are only 66.7 points of the OFAT method, and can be fully and accurately applied to the more severe nonlinear variation laws.). Sampling. The research results of the formal experimental design method of wind tunnel MDOE in this paper, It lays a foundation for the further development of wind tunnel MDOE method based on nonparametric model.
【作者單位】： 中國(guó)航天空氣動(dòng)力技術(shù)研究院;
【分類(lèi)號(hào)】：V211.74
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本文編號(hào)：1685941