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METHODS FOR ESTIMATING THE EFFECT OF VARIATIONS IN DESIGN VARIABLES ON THE WEIGHT OF AN AIRCRAFT COMPONENT

机译:估算设计变量中的变化对飞机部件重量的影响的方法

摘要

A method of designing an aircraft component formed by a number of elements (j), that includes a phase to estimate the effect of a variation of a design variable on the component weight comprising the following steps: a) providing the main primary structure basic data of the aircraft component and the Reserve Factors (RFij) associated to its design criteria (i); b) obtaining a breakdown of the component weight by said design criteria (i) using a fictitious weight (mefRFij) calculated taking into account the relative importance of their critical design criteria; c) obtaining the weight effect of a design variable variation, recalculating firstly the new Reserve Factors (RFij) using suitable functions for the variation of said Reserve Factors (RFij) vs. the variation of said design variable and, secondly, recalculating the component weight using suitable functions for the variation of the element (j) dimensions vs. the variation of said Reserve Factors (RFij).
机译:一种设计由多个元素(j)组成的飞机部件的方法,该方法包括一个阶段,用于估计设计变量的变化对部件重量的影响,该步骤包括以下步骤:a)提供主要的主要结构基本数据飞机部件及其与设计标准(i)相关的后备系数(RFij); b)通过考虑到其关键设计标准的相对重要性而计算出的虚拟权重(mefRFij),通过上述设计标准获得部件重量的细分; c)获得设计变量变化的权重效应,首先使用适合于所述储备因子(RFij)变化的函数对所述设计变量的变化重新计算新的储备因子(RFij),其次,重新计算部件重量使用合适的函数来改变元素(j)的尺寸与所述储备因子(RFij)的变化。

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