Aircraft Structural Sizing and Weight Estimation Using FE-based Preliminary Design Tool
In this paper,an automated preliminary design tool,DIAMOND/AIRCRAFT,is introduced for aircraft structural sizing and weight estimation.This tool can address the fidelity and computational efficiency issues together by combining an FE-based solver with parameterized structural designs.DIAMOND/AIRCRAFT consists of three sub-modules; Fuselage Generator,Wing generator,and Empennage Generator.In consideration of structural layout through user inputs key-in or CSV file format for required parameters,this tool can automatically generate finite element meshes for wing,fuselage,tail,and control surfaces of an aircraft.Structural sizing for entire aircraft is performed in DIAMOND/AIRCRAFT.In order to minimize the weight of primary structure,thicknesses of structure members such as skins,stringers,spars,and ribs,and cross sectional dimensions of stringers are selected as design variables and optimized for sizing process.Various sizing criteria can be applied such as margin of safety from buckling analysis,material strength,and user defined formulation for the sizing process.Buckling analysis can be selectively calculated through either analytic or numerical approach.Here,multi-level optimization algorithm is applied based on augmented Lagrangian decomposition method.For weight estimation,DIAMOND/AIRCRAFT can also provide the results of weight estimation by empirical approaches as well as FE-based approach.
DIAMOND/AIRCRAFT FE-Based Design Tool Automated Mesh Generation Structural Sizing,Buckling Analysis
Danbi Hong Wanggu Kang Hae-Chang Lee Dae Sung Lee Seung Jo Kim
Korea Aerospace Reasearch Institute,169-84 Gwahangno,Yuseong-gu,Daejeon 305-608,Korea Seoul National University,1 Gwanak-ro,Gwanak-gu,Seoul 151-742,Korea
国际会议
2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)
上海
英文
1-5
2014-09-24（万方平台首次上网日期，不代表论文的发表时间）