The bumper springs of a railway carriage are to be made of square section wire. The ratio of mean diameter of spring to the side of wire is nearly equal to 6. Two such springs are required to bring to rest a carriage weighing 20 kN moving with a velocity of I.5 m/s with a maximum deflection of 200 mm. Design the spring if the allowable shear stress is not to exced 300 MPa and G=84 kN/mm2. 2.4 W.D 5.59 W.D'n For square wire, ; and & = GA Side of the wire section, where D = Mean diameter, Number of coils, and H = Load on each spring.

The bumper springs of a railway carriage are to be made of square section wire. The ratio of mean diameter of spring to the side of wire is nearly equal to 6. Two such springs are required to bring to rest a carriage weighing 20 kN moving with a velocity of I.5 m/s with a maximum deflection of 200 mm. Design the spring if the allowable shear stress is not to exced 300 MPa and G=84 kN/mm2. 2.4 W.D 5.59 W.D'n For square wire, ; and & = GA Side of the wire section, where D = Mean diameter, Number of coils, and H = Load on each spring.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.11.3P: A thin-walled aluminum tube of rectangular cross section (sec fig me) has a centerline dimensions b...

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