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

Vessel rigging analysis, Impact Factor on Vessel rigging analysis? Unle...

Impact Factor on Vessel rigging analysis? Unless otherwise specified by the user, a minimum impact factor of 1.5 shall be applied to the lift weight for designing the lifting d

List and explain the five stages of change, List and explain the five stage...

List and explain the five stages of change. What stage are you at in regards to your own exercise program and explain why? (50-100 words) Refer to page 4 of The Essential Guide to

Torsion, diameter = 100mm length = 470mm power = 4000 w radians = 78 shear ...

diameter = 100mm length = 470mm power = 4000 w radians = 78 shear modulus 60000 n/mm^2 determin the maximum shear stress and angle of twist

Cantilever beam - shear force diagrams, Cantilever beam - shear force diagr...

Cantilever beam - shear force diagrams: Illustrate the shear force & bending moment diagrams for the cantilever beam illustrated in Figure. Figure Solution

Crankshaft-basic components of engine , Crankshaft : It converts the recip...

Crankshaft : It converts the reciprocating motion of the piston into useful rotary motion. In the crankshaft of a single cylinder engine, there is a pair of crank arms and balance

Age-hardening of aluminium alloys, Age-hardening of Aluminium Alloys I...

Age-hardening of Aluminium Alloys In specific alloys precipitation from a single phase may arise. The precipitate phase might be in form of determine sub-microscopic particles

Dry saturated steam - thermodynamics, Dry Saturated Steam - thermodynamics:...

Dry Saturated Steam - thermodynamics: A dry saturated steam is single phase medium. It does not have any water particle. It can be obtained on complete evaporation of water at

Two wheeler engines, Two Wheeler Engines: Engine is a unit of motorcycle t...

Two Wheeler Engines: Engine is a unit of motorcycle that runs the motorcycle by converting fuel energy to mechanical power. This power comes from the burning of fuel inside the cy

Law of belting, if motion of the belt is reversed, how the law of the belti...

if motion of the belt is reversed, how the law of the belting shall be violated??

Equipment for resistance welding, EQUIPMENT FOR RESISTANCE WELDING The ...

EQUIPMENT FOR RESISTANCE WELDING The equipment for resistance welding is different from that for arc welding for the following reasons: Resistance welding machines are complica

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