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首页> 外文会议>AIAA atmospheric flight mechanics conference;AIAA SciTech forum >Estimating Uncertainty Bounds for Modified Configurations from an Aerodynamic Model of a Nominal Configuration
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Estimating Uncertainty Bounds for Modified Configurations from an Aerodynamic Model of a Nominal Configuration

机译：从标称配置的空气动力学模型估算修改后配置的不确定性范围

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摘要

Two different methods of extending the model form uncertainty bounds from an aerodynamic model of a nominal aircraft configuration to a model of a modified configuration are proposed and examined. The first method is less conservative and neglects additional uncertainty due to the change in configuration, while the second method is more conservative and attempts to account for the effect of tuning the baseline model. A model for the Aerostar aircraft, used as a research aircraft by NAVAIR, was selected to study these methods as it has a range of modified configurations and uncertainties. These methods allow for the approximation of uncertainty bounds for a modified configuration without performing additional flight tests, model tuning or uncertainty quantification on the modified configuration, allowing non-deterministic flight dynamics simulations and airworthiness certification to be performed more quickly.
机译：提出并研究了两种不同的方法来扩展模型形式的不确定性范围，从标称飞机配置的空气动力学模型扩展到修改后的配置模型。第一种方法不太保守，并且由于配置的变化而忽略了其他不确定性，而第二种方法则较为保守，并尝试考虑调整基线模型的影响。由于NAVAIR具有一系列经过修改的配置和不确定性，因此选择了NAVAIR用作研究飞机的Aerostar飞机模型来研究这些方法。这些方法可以在不对修改后的配置执行额外的飞行测试，模型调整或不确定性量化的情况下，对修改后的配置的不确定性范围进行近似估算，从而可以更快地执行不确定性飞行动力学仿真和适航性证明。

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