基于参数化几何建模的飞机结构制造成本与重量权衡方法  

The airframe cost/weight tradeoff method based on the parametric geometry modeling

作　　者：王海强[1] 王敏[1] 吴洋[1] 

机构地区：[1]中国商用飞机有限公司上海飞机设计研究院,上海201210

出　　处：《机械设计与制造工程》2017年第4期30-33,共4页Machine Design and Manufacturing Engineering

摘　　要：重量和制造成本是飞机结构重要却互相矛盾的设计目标,且飞机结构的重量与制造成本在设计初期就被基本确定。为了在结构设计初期就能权衡制造成本与重量,开发了一种用于权衡制造成本与重量的设计平台。该平台具有如下特征:几何建模模块化、结构有限元分析精细化、数据前后处理自动化。利用该平台对某公务机方向舵设计进行研究,结果证明平台可以支持分析不同结构布局对制造成本和重量的影响,通过在设计初期对制造成本和重量进行权衡,降低了方向舵结构的直接使用成本。Weight and manufacturing cost are two conflicting design objectives, which are determined in the early airframe structural design phase. In order to perform a design tradeoff in weight and cost, it introduces a design framework, defines several features such as a flexible and modular modeling system to support the assessment of different structural layouts, a FEA - based structural sizing method, automatic pre/post processing capability. It analyzes a rudder of business jet. The results indicate the platform can rapidly analyze the cost and weight for different structural layouts. This method can be beneficial for the cost/weight tradeoff at the beginning of the airframe structural design.

关 键 词：优化 有限元分析 成本估算 重量估算 

分 类 号：V221.92[航空宇航科学与技术—飞行器设计]