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航空学报  2013 

中短程客机总体参数敏感性分析

DOI: 10.7527/S1000-6893.2013.0140, PP. 809-816

Keywords: 飞机设计,喷气客机,敏感性分析,方案评估,优化

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Abstract:

总体参数敏感性分析是确定客机总体参数的主要依据之一。以中短程客机作为背景机型,在开发了客机总体设计综合分析程序的基础上,首先应用优化方法确定出初步的总体参数,然后以此参数为基准点,着重分析总体参数对客机性能的影响,包括机翼面积对质量和直接运营成本(DOC)的影响;组合参数(机翼面积与展弦比、机翼面积与后掠角)对质量的影响;发动机推力和机翼小翼的选装对起降性能和设计燃油质量的影响;组合参数(机翼面积与襟翼类型)对起降性能的影响;机身加长对起降性能和设计燃油质量的影响。最后将总体参数敏感性分析的结果以趋势图和地毯图的形式给出,可直观地洞察总体参数对性能指标的影响,为总体参数的调整和最终确定提供依据。

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