A spring is designed to fire a 2 kg projectile. The outside diameter of the coil is 16 an 18mm wire and a total of 22 coils squared and ground. The spring has a free le mm. When set or loaded, the spring is compressed to a length of 450 mm. Determine the spring index, as well as the active number of coils a.

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter10: Statically Indeterminate Beams
Section: Chapter Questions
Problem 10.5.3P: Solve t he preceding problem by integrating the differential equation of the deflection curve.
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A spring is designed to fire a 2 kg projectile. The outside diameter of the coil is 160 mm with
an 18mm wire and a total of 22 coils squared and ground. The spring has a free length of 650
mm. When set or loaded, the spring is compressed to a length of 450 mm.
a. Determine the spring index, as well as the active number of coils
b. Find the spring deflection and Wahl's factor.
Transcribed Image Text:A spring is designed to fire a 2 kg projectile. The outside diameter of the coil is 160 mm with an 18mm wire and a total of 22 coils squared and ground. The spring has a free length of 650 mm. When set or loaded, the spring is compressed to a length of 450 mm. a. Determine the spring index, as well as the active number of coils b. Find the spring deflection and Wahl's factor.
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