AIRFRAME STRESS ANALYSIS AND SIZING NIU PDF

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Enroll Now. Most airframes deal with thin-sheets or shells that may have buckling and crippling characteristics. This course provides a comprehensive background in metallic airframe sizing that combines input from both material strength analyses and hands-on design experience. Practical airframe design depends extensively on experimental or test data that must be correlated with analytical procedure. Discussion focuses on the selection of structural configurations and materials that combine to produce an economic design, while at the same time taking into account the effects of static, fatigue, fail-safe requirements, damage tolerance, and repairability.

The sizing methods presented in this course also are intended for those who need rough estimation techniques to support preliminary structural design. Moreover, these methods can give quick and accurate solutions to design problems simply with the aid of a desktop engineering calculator. Homework assignments are given everyday in class. Participants must bring a small desktop engineering calculator. Niu Conmilit Press, , and lecture notes are distributed on the first day of the course.

The notes are for participants only and are not otherwise available for sale or unauthorized distribution. Michael C. As department manager in charge of various structural programs there, he was responsible for the development of innovative metallic and composite structural design concepts applicable to current and future advanced tactical fighters and advanced transports.

He also was involved in conceptual and preliminary airplane design, and was lead stress engineer responsible for the L wide-body aircraft wing and empennage structures. During and he served as stress engineer for the B, B, and other aircraft at The Boeing Company in Seattle. Discussion of preliminary sizing, structural design phases, design criteria and regulations for certification, detail design and stress analysis, design guidelines.

Structural external and internal loads, static and dynamic load, wing and empennage loads, fuselage loads. Preliminary sizing requirements, production stress analysis, formal stress analysis for certification, rigidity requirements, margin of safety MS or reserve factor RF. Beam bending, plastic bending, forced bending, stiffness EI , shear stresses and shear flows, taper effect.

Beam in torsion closed vs. Plates and shells applications, plate pressure bulkheads, shell pressure bulkheads, honeycomb panel application.

Types of joint, fastener selection, under ultimate and fatigue loads, shim and eccentricity effects, lugs and shear pins, tension fittings and bolts, fatigue considerations, design concerns. Column and Instability Buckling Euler column equation, column end restraints, beam-columns, crippling stress, Euler-Johnson curves.

Holes and cutouts, cutout in shear beam, panel with small hole, tension and compression panel with large cutout. Flat skin-stringer panels, integrally-stiffened panels, axial and shear load redistribution, sizing of the panel skin and stringers. Upper panel mainly in compression loads , lower panel mainly in tension loads , spars, ribs, general discussion of design considerations and applications.

Fuselage cabin pressure and flight loads, skin and stringers, frames, floors, general discussion of design considerations and applications. Strain gauges; component tests under compression load, shear load, and tension fatigue load; full-scale airframe static and fatigue test; test considerations.

For more information contact the Short Course Program Office: shortcourses uclaextension. Airframe Stress Analysis and Sizing. Enroll Now March , Most airframes deal with thin-sheets or shells that may have buckling and crippling characteristics.

Prerequisite Some basic understanding of strength of materials is required. Day 1 Overview Discussion of preliminary sizing, structural design phases, design criteria and regulations for certification, detail design and stress analysis, design guidelines. Loads Structural external and internal loads, static and dynamic load, wing and empennage loads, fuselage loads. Structural Analysis Determinate non-redundant structures, indeterminate redundant structures. Sizing Procedures Preliminary sizing requirements, production stress analysis, formal stress analysis for certification, rigidity requirements, margin of safety MS or reserve factor RF.

Simple Beam Beam bending, plastic bending, forced bending, stiffness EI , shear stresses and shear flows, taper effect. Day 2 Box Beam Beam in torsion closed vs.

Plate and Shell Plates and shells applications, plate pressure bulkheads, shell pressure bulkheads, honeycomb panel application. Joints and Fittings Types of joint, fastener selection, under ultimate and fatigue loads, shim and eccentricity effects, lugs and shear pins, tension fittings and bolts, fatigue considerations, design concerns.

Day 3 Column and Instability Buckling Euler column equation, column end restraints, beam-columns, crippling stress, Euler-Johnson curves. Buckling of Thin Sheet Compression loads, shear loads, combined loads. Flat and Curved Shear Panels Shear resistant beams non-buckled web , incomplete diagonal tension beams buckled web. Cutouts Holes and cutouts, cutout in shear beam, panel with small hole, tension and compression panel with large cutout.

Day 4 Compression Panels Flat skin-stringer panels, integrally-stiffened panels, axial and shear load redistribution, sizing of the panel skin and stringers.

Damage-Tolerant Panels In Tension Fatigue design considerations, stress concentration, crack growth and fail-fail. Discussion of Transport Preliminary Wing Sizing Upper panel mainly in compression loads , lower panel mainly in tension loads , spars, ribs, general discussion of design considerations and applications. Discussion of Transport Preliminary Fuselage Sizing Fuselage cabin pressure and flight loads, skin and stringers, frames, floors, general discussion of design considerations and applications.

Structural Test Setup Strain gauges; component tests under compression load, shear load, and tension fatigue load; full-scale airframe static and fatigue test; test considerations.

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Airframe Stress Analysis Sizing by Michael Niu

Enroll Now. Most airframes deal with thin-sheets or shells that may have buckling and crippling characteristics. This course provides a comprehensive background in metallic airframe sizing that combines input from both material strength analyses and hands-on design experience. Practical airframe design depends extensively on experimental or test data that must be correlated with analytical procedure. Discussion focuses on the selection of structural configurations and materials that combine to produce an economic design, while at the same time taking into account the effects of static, fatigue, fail-safe requirements, damage tolerance, and repairability.

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Airframe Stress Analysis and Sizing

Seller Rating:. Light rubbing wear to cover, spine and page edges. Very minimal writing or notations in margins not affecting the text. Possible clean ex-library copy, with their stickers and or stamp s. Seller Inventory

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