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

Initial structure and requirements, Initial structure and requirements: ...

Initial structure and requirements: In the evening after the panel, various interested parties gathered in a smoke-filled room and asked themselves if a common translator was

Ventilation fan belt assembly, The aim of this assignment is for the studen...

The aim of this assignment is for the student to use the information, data and analysis techniques presented during lectures to design a belt drive transmission for a ventilation f

Newton ring, What is a newton ring excrement

What is a newton ring excrement

Body projected vertically, Qusetion: A body when projected vertically up c...

Qusetion: A body when projected vertically up covers a total distance s, during its time of flight. If we neglect gravity then how much distance, the particle will travel during

Which functions used for coating, Q. Which functions used for coating? ...

Q. Which functions used for coating? • Improves arc stability by providing certain chemical which have this ability, by ionizing the path of arc. • Provides a protective gaseou

Plate clutch warpage-clutch slipping, Plate clutch warpage: Place plate cl...

Plate clutch warpage: Place plate clutch on surface plate and check for warpage. Ensure that0.20 mm feeler gauge does not slide freely.

Fresher openings, I have completed mechanical engineering ..2012 passed out...

I have completed mechanical engineering ..2012 passed out...i need to get job in core companies...how i can get it

Principle stresses, Determine the bending  (o-, ) and shear stress ( Tx), )...

Determine the bending  (o-, ) and shear stress ( Tx), ) at the surface element shown on the solid circular shaft below. Use Mohr's circle to determine the principle stresses, a l

Battery charger-electrical instruments , Battery Charger: As suggested by ...

Battery Charger: As suggested by the name, it is used to charge a battery. The detailed procedure for charging a battery is given in later units. List the uses of following too

Explain the disadvantages of automation, Explain the Disadvantages of Autom...

Explain the Disadvantages of Automation? a) Initial cost is higher providing additional features in machine tools. b) Skilled personnel's are required for maintenance of aut

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