Systems of bracing employed in triplanes. Design of spar sections. Study of stresses produced during steep dives. Calculation of loads due to lift reactions. Formulae for stresses in a spar. Table showing bending moment, shearing forces, stresses, etc., obtained by different methods; design of spars for bottom wing. Movement of points of support; theory of continuous beams. Calculation of stresses due to lateral bending. Estimating stresses due to bending in each spar. Method of determining dimensions of parallel solid strut. Formula for crippling load of elliptically tapered strut. Design of struts and ribs; results of experiments of parallel spruce struts. Determining failing loads of struts. Hollow tapered wooden struts. Results of tests on tubular steel struts. Theory of composity struts. Euler failing load of symmetrical strut of any taper. Design of short tapered strut. Load curves for ribs. Initial stresses in ribs due to fabric. Torque diagram for aileron spar, and example of aileron calculation. Formulas for computing torsion of spars of various sections. Stresses in spar under combined bending and twisting. Equations of moments in spars. Elastic properties of wood in torsion. (See also - vol. 17, no. 309, Sept. 18, 1919 (beginning on p. 289))
The loads and stresses on aeroplanes
Aeronautics
Aeronautics ; 18 , n 349
1920
Aufsatz (Zeitschrift)
Englisch
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