Determine the axial extension along a load, Mechanical Engineering

Determine the axial extension along a load:

An open coiled helical spring is created having 10 turns of a mean radius of 60 mm. The wire diameter is 10 mm and coils make an angle of 38o along a plane perpendicular to the axis of the coil. Determine

 (1) the axial extension along a load of 200 N,

 (2) the angle of rotation of free end.

E = 200 GPa, G = 80 GPa.

Solution

n = 10, R = 60 mm, d = 10 mm, α = 38, E = 200 GPa, G = 80 GPa

(a) Axial Extension

 Δ= 64 W R3 sec α/d4 ( cos2 α/G +2 sin 2 α /E)

=64 (200) (60)3 (10) sec 30 / 104 ((cos2 30/80 × 103)) + (2 sin 2 30 /200 × 103 ))  = 36.7 mm

(a) Angle of Rotation at Free End

φ= 64 W R3 sin α/d4 ((1/G -  2/E))

=64 (200) (60)3 (10) sec 30/104 ( 1/ (80 × 103)  - 2/ (200 × 103)) = 0.0567 radian

Posted Date: 1/21/2013 1:24:15 AM | Location : United States







Related Discussions:- Determine the axial extension along a load, Assignment Help, Ask Question on Determine the axial extension along a load, Get Answer, Expert's Help, Determine the axial extension along a load Discussions

Write discussion on Determine the axial extension along a load
Your posts are moderated
Related Questions
Determine the minimum thickness required: A thin spherical shell of 2 m diameter is subjected to an internal pressure of 1.5 N/mm 2 . If the allowable tensile stress of the ma


HEAT ENGINE - Thermodynamics: HE A T ENGINE. A heat engine is a thermodynamics system that operates in a cycle in which heat can be transferred from heat source to heat si

Define the Side Rake Angle? It measured the slope of top surface of the tool to the side in the direction perpendicular to longitudinal axis it also guides the direction of chi

Q. CSCC in Gas Streams? Due to process upset of FWKO or Treater, there may be chance of chloride carry over into the gas lines. Depending on the chloride contents of formation

Value engineering & Value analysis VA may be defined as looking at an existing product or a product already in production to see if changes in design or process can reduce prod

mostly what aspects trouble mechanical engineers?

(a) Explain safety features of latest vehicles. (b) Discuss the advantages and disadvantages of front wheel drive vehicles over rear wheel drive vehicles.