摘要
本文分析飞机对大气紊流响应的方法归纳为三大类:离散突风分析、相关函数与频谱分析和最坏确定性输入分析。简要介绍并比较了三类分析中有代表性的方法,即一般离散突风法、功率谱密度法和统计离散突风法。应用最坏确定性输入分析的统计离散突风法,在线性定常及高斯突风输入的情况下与功率谱密度法严格一致,且能处理非定常非线性问题,因此进一步发展这种方法是很有意义的.
In this paper, the methods analyzing the effects of atmospheric turbulence on an aircraft are divided into three groups: discrete gust analysis, related function and spectral analysis and the worst deterministic analysis. The representive methods of each group, i. e. discrete gust method, power spectral density method, and statistical discrete gust methods are briefly discussed. The statistical discrete gust method using the worst de(?)erministic analysis is equivalent to the power spectral density method for constant coefficient linear system and gauss gust inputs. But the former can deal with unsteady, non-gauss even non-linear problems. Therefore, it is worth to develop the worst deterministic analysis further.
出处
《飞行力学》
CSCD
北大核心
1990年第1期82-89,共8页
Flight Dynamics
