The feasibility of a mathematical/statistical technique for determining the distribution of maximum aerospace vehicle structural and control response from the more advanced presentations of upper-wind climatology (means, standard deviations, and inter-level correlation matrices of orthogonal wind components at equally spaced levels) is investigated. It is concluded that the development of such a technique is feasible but not without some problem areas. The steps of development of such a technique appear to be as follows: First, the development of a reasonable linear system of differential equations that is equivalent (in a special sense) to the dynamical equations of motion and response of the vehicle. Second, the establishment of the relation of response statistics of the vehicle to the wind statistics by means of the preceding differential equations. Third, from the statistics of vehicle response, to determine the statistics of the maximum vehicle response. Some preliminary results in several of the important areas are outlined. (Author)
Final scientific rept. for 1 Jul 64-31 Mar 65
31 MAR 1965
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