NDLI: Optimization of Air Plane Wing Rib Using Finite Element Analysis

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Dev, Naveen Prakash Goravi Vijaya Satish, Anoop Kumar Koduru Veerapur, Doddabasappa
Copyright Year	2013
Abstract	Ribs are the stiffening members in the wing of air plane. Ribs usually have a thin flat plate shape accommodating cutouts, stiffeners and attachments. Most of the time there is a failure of rib due to critical buckling load even though the component is stressed well below the ultimate stress. Hence the rib is designed to carry maximum buckling load. The objective was to increase the critical buckling strength and reduce the weight of the rib. Linear static and buckling analysis were performed on the idealized configuration using FEM packages. Simply supported rectangular plate with different number of inline holes subjected to compression load was evaluated. The material considered was aluminum alloy. Various parametric studies were carried out to arrive at the optimum rib thickness and cross section. Once the optimum thickness of the plate was found out, reduction in the weight of the plate was done by providing various in line circular holes. From the study it was found that inserting circular hole in the plate enhances the buckling strength of the plate. The buckling strength of the plate was increased as the number of holes increased.
File Format	PDF
ISBN	9780791856178
DOI	10.1115/IMECE2013-62192
Volume Number	Volume 1: Advances in Aerodynamics
Conference Proceedings	ASME 2013 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2013-11-15
Publisher Place	San Diego, California, USA
Access Restriction	Subscribed
Subject Keyword	Compression Flat plates Aluminum alloys Finite element methods Optimization Stress Finite element model Wings Weight (mass) Finite element analysis Shapes Buckling Failure
Content Type	Text
Resource Type	Article

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