Open coiled helical spring, Mechanical Engineering

Assignment Help:

Open coiled helical spring:

In an open coiled helical spring along with α = 38o, if the inclination of the coil is ignored, determine the percentage by which the axial extension is under estimated.

E = 200 GPa, G = 80 GPa.

Solution

Δ= (64 W R3 n / d 4 cos α)( (cos2 α/G)+(2 sin 2 α /E))

            = K/ cos α[cos2 α/G     +2 sin 2 α/E]

α= 38o , Δ = K × (0.115/0.866) × 10- 4  = K × 0.0147

If α is neglected,

α= 0, Δ2  = K × 0.0125

% Error = ((Δ1 - Δ2 ) / Δ1 )× 100

= (0.0147 - 0.0125/0.0147) × 100 = 14.96%


Related Discussions:- Open coiled helical spring

Alignment of piping flanges, Q. Alignment of piping flanges? Alignment ...

Q. Alignment of piping flanges? Alignment of piping flanges shall be in accordance with ASME B16.5. This code specifies that: • Flange centerline misalignment must be within

What do you understand by inversion of mechanism, (a) What do you understan...

(a) What do you understand by Inversion of Mechanism ? Describe in detail the following : (i) Crank and Lever mechanism (ii) Double crank Mechanism (b) What are the condit

CAMS, COMPARISON WITH CAM MECHANISMS WITH LINKAGES

COMPARISON WITH CAM MECHANISMS WITH LINKAGES

Strength of materials, sir/madam, i would like to teach online how can i ha...

sir/madam, i would like to teach online how can i have to proceed

Motion of the particle takes place in plane, A particle is acted upon by a ...

A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane, then wha

Types of culverts - causeway and bridges, Types of Culverts: Culverts ...

Types of Culverts: Culverts are constructed with various materials and to different designs. The popular forms are : (a) Temporary stone scuppers (b) Stone slab culverts

Spot welding-resistance welding processes, SPOT WELDING In this type of...

SPOT WELDING In this type of welding, after proper cleaning of the surfaces, the metals to be welded are kept one above the other and two copper electrodes are kept on both sid

Effect of the wet and dry curing methods on the strength, Effect of curing ...

Effect of curing conditions on strength, porosity, absorptivity, and shrinkage of concrete in hot and dry climate Abstract This term paper will study the effect of the wet a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd