Lecture 11- Structures 1

Lecture 11- Structures 1 - AOE 2104-Aerospace and Ocean...

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AOE 2104--Aerospace and Ocean Engineering Fall 2010 Virginia Tech October 14 2010 Aircraft Structures AOE 2104 Introduction to Aerospace Engineering Aircraft Structures
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AOE 2104--Aerospace and Ocean Engineering Fall 2010 Virginia Tech October 14 2010 Aircraft Structures Understanding Aircraft Structures Aircraft structures are one of the four classic disciplines within the flight vehicle system In structural analysis we need an appreciation of the following: Statics Dynamics Mechanics of materials Mechanics of deformable bodies In this class we will only “scratch the surface” of aircraft structures Lets start at the beginning….
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AOE 2104--Aerospace and Ocean Engineering Fall 2010 Virginia Tech October 14 2010 Aircraft Structures Structures have evolved from truss based fabric covered designs to semimonocoque designs What is a truss? One or more triangular units Straight slender members ends are connected at joints referred to as nodes Example of early truss structures? Wright flyer, Sopwith camel… etc History of Aircraft Structures
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AOE 2104--Aerospace and Ocean Engineering Fall 2010 Virginia Tech October 14 2010 Aircraft Structures Bi-planes dominated design for sometime. Why? History of Aircraft Structures
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AOE 2104--Aerospace and Ocean Engineering Fall 2010 Virginia Tech October 14 2010 Aircraft Structures The biplane era lasted until the 1930’s Up to this point, the construction materials of choice were Bamboo! Replaced by spruce (light wood with straight grain) Tautened fabric (madapolam) Why this form of construction? Light and inexpensive Truss structure provided resistance to airloads Fabric transfers air loads into structure Disadvantages? Fabric had zero compression strength Truss structure left little room for passengers/cargo Overall strength is low compared to an equivalent metal structure History of Aircraft Structures
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AOE 2104--Aerospace and Ocean Engineering Fall 2010
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Lecture 11- Structures 1 - AOE 2104-Aerospace and Ocean...

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