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METHOD OF SIMULATION OF UNSTEADY AERODYNAMIC LOADS ON AN EXTERNAL AIRCRAFT STRUCTURE

机译：飞机外部结构非定常气动载荷的模拟方法。

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摘要

The invention relates to a method for simulating the unsteady aerodynamic loads being exerted on the external structure of an aircraft, notably in the context of a simulation of the buffeting of a wing surface in an airflow. The method includes a step of measurement of pressure (410) at different points of a grid, a step of calculation of the spectral density at these points (420) followed by extrapolation/interpolation operations to calculate the missing measurements (430), a step of estimation of the pressure coherence (440) for each pair of points of the grid, a step of estimation of the interspectral pressure density (450) for these same pairs of points, from the coherence thus estimated, and a step of calculation of the aerodynamic loads (460) by summing the real part of the interspectral density for the area of the wing surface having a separation of the boundary layer.

机译：本发明涉及一种用于模拟施加在飞机的外部结构上的非稳态空气动力学载荷的方法，特别是在模拟气流中机翼表面的抖振的情况下。该方法包括测量网格不同点的压力（ 410 ）的步骤，计算这些点（ 420 ）的光谱密度的步骤，然后进行外推/插值运算以计算缺失的测量值（ 430 ），估算网格每对点的压力相干性（ 440 ）的步骤，估算的步骤根据这样估算的相干性，对这些相同点对的光谱间压力密度（ 450 ）的计算，以及通过求和得出空气动力学载荷（ 460 ）的步骤机翼表面区域的光谱密度的实部，该边界具有分隔层。 展开▼

著录项

公开/公告号US2014081609A1

专利类型

公开/公告日2014-03-20

原文格式PDF

申请/专利权人 AIRBUS OPERATIONS (SAS);
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申请/专利号US201314023981

发明设计人 RAUL CALDERON;CHRISTOPHE DAVID;
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申请日2013-09-11

分类号G06F17/50;

国家 US

入库时间 2022-08-21 16:07:51

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3. Method of simulation of unsteady aerodynamic loads on an external aircraft structure [P] . 美国专利： US9767229B2 . 2017-09-19

机译：模拟飞机外部结构上非定常空气动力载荷的方法

4. METHOD FOR SIMULATION OF INSTATIONARIAN AERODYNAMIC LOADS ON AN EXTERNAL AIRCRAFT STRUCTURE [P] . 法国专利： FR2995426B1 . 2014-09-05

机译：飞机外部结构气动载荷模拟的方法。

5. METHOD FOR SIMULATION OF INSTATIONARIAN AERODYNAMIC LOADS ON AN EXTERNAL AIRCRAFT STRUCTURE [P] . 法国专利： FR2995426A1 . 2014-03-14

机译：飞机外部结构气动载荷模拟的方法。

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