Efficient Worst Case 1-Cosine Gust Loads Prediction
Efficient Worst Case 1-Cosine Gust Loads Prediction
复制标题
高效的最坏情况 1-余弦阵风负荷预测
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
H. H. Khodaparast
中科院分区：
文献类型：
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作者：
H. H. Khodaparast
本文介绍了几种方法，旨在显着减少所需的时间来确定飞机的最坏情况阵风载荷。为了确定包含整个飞行包线和不同燃料情况的元模型，采用了一些试验设计、替代建模和优化技术。所有的方法进行了比较的数据从一个简单的，假设的模式，自由的飞机模型与5个“有趣的数量”，并显示，以确定准确的预测最坏的阵风情况下，更少的阵风响应计算比传统的蒙特-卡罗的方法。
This paper describes several approaches aiming to significantly reduce the amount of time required to determine the worst case gust loads for aircraft. A number of Design of Experiments, surrogate modeling and optimization techniques are applied in order to determine meta-models encompassing the entire flight envelope and different fuel cases using only a few test points. All of the methodologies are compared on data from a simple, assumed modes, free-free aircraft model with 5 ”interesting quantities”, and are shown to determine accurate predictions of the worst gust case with far fewer gust response calculations than a conventional Monte-Carlo approach.