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

Discover the angle of twist - uniformly varying shaft, Discover the angle o...

Discover the angle of twist - uniformly varying shaft: A uniformly varying shaft of length 2 m is subjected to a torque of 2 kN-m. The diameter at the ends shall be 60 mm and

CAPP, what is MIPLAN system

what is MIPLAN system

Determine tangential and normal stresses, A rectangular block of material i...

A rectangular block of material is subjected to stresses 65N/mm 2 (tensile) in x- direction and 35 N/mm 2 (tensile) in perpendicular direction. It is accompanied by shear stress

Governor, spring combined gravity governor

spring combined gravity governor

Java Language and Virtual Machine Specifications, I need assignment help in...

I need assignment help in Java Language and Virtual Machine Specifications, write short notes on Java Language and Virtual Machine Specifications.

CHEMISTRY, WHAT IS CALGON CONDITIONIMG

WHAT IS CALGON CONDITIONIMG

Other bearing materials, Other Bearing Materials An extensively hard w...

Other Bearing Materials An extensively hard wood of great density, termed as lignum vitae, has been employed for bearing applications. Along with water as cooling and lubrican

Steps of servicing -washing and drying a motorcycle, Steps of servicing   ...

Steps of servicing   Bring the motorcycle in the washing bay. Clean the motorcycle with recommended soap solution and soft sponge. Wash the motorcycle with a jet o

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