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기술보고서

기술보고서 게시판 내용
타이틀	Finite Element Based HWB Centerbody Structural Optimization and Weight Prediction
저자	Gern, Frank H.
Keyword	AERODYNAMIC LOADS;; AIRCRAFT MODELS;; CENTERBODIES;; FINITE ELEMENT METHOD;; INTERNAL PRESSURE;; PREDICTIONS;; PRESSURE DISTRIBUTION;; STRUCTURAL ANALYSIS;; STRUCTURAL WEIGHT;; WEIGHT ANALYSIS
URL	http://hdl.handle.net/2060/20120008184
보고서번호	AIAA Paper 2012-1606
발행년도	2012
출처	NTRS (NASA Technical Report Server)
ABSTRACT	This paper describes a scalable structural model suitable for Hybrid Wing Body (HWB) centerbody analysis and optimization. The geometry of the centerbody and primary wing structure is based on a Vehicle Sketch Pad (VSP) surface model of the aircraft and a FLOPS compatible parameterization of the centerbody. Structural analysis, optimization, and weight calculation are based on a Nastran finite element model of the primary HWB structural components, featuring centerbody, mid section, and outboard wing. Different centerbody designs like single bay or multi-bay options are analyzed and weight calculations are compared to current FLOPS results. For proper structural sizing and weight estimation, internal pressure and maneuver flight loads are applied. Results are presented for aerodynamic loads, deformations, and centerbody weight.