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

Pneumatic circuit, fully automatic pnuematic cicuit explanation#Minimum 100...

fully automatic pnuematic cicuit explanation#Minimum 100 words accepted#

Function of heat pump, Function of heat pump: Refrigerator The pr...

Function of heat pump: Refrigerator The primary function of heat pump is to transfer heat from the low temperature system to the high temperature system, this transfer of

Ratio of moment of resistance, (a) For a given material show that the ratio...

(a) For a given material show that the ratio of moment of resistance of a square beam when section is placed with horizontal and vertical sides 41.5%. stronger than the same sectio

Magnitude of a couple - mechanics, Magnitude of a couple: So l.: Fo...

Magnitude of a couple: So l.: For system, magnitude of couple is equal to algebraic sum of the moment about any point If the system reduces to couple, the resultant forc

What is shatter test, Q. What is Shatter test? Shatter test: This tes...

Q. What is Shatter test? Shatter test: This test is measure of toughness of the moulding sand. It indicates the capacity of the moulding sand to with stand rough handling dur

Derive mathematical equation for bernoulls equation, Derive mathmatical equ...

Derive mathmatical equation for Bernoull's equation, what are the application of Bernoull's equation and illustrate any one.

Water jet machining, Water jet machining is an advanced method for cutting ...

Water jet machining is an advanced method for cutting plates using a high-velocity water jet mixed with abrasive powder. The jet comes out of a nozzle A of diameter d and follows t

Globular transfer, Globular Transfer Globular transfer  is characterise...

Globular Transfer Globular transfer  is characterised by a drop size of greater diameter than that of the electrode wire. The large drop is easily acted on by gravity, generall

Heat dissipation -various factors in clutch design , Heat Dissipation : Du...

Heat Dissipation : During clutch application, large amount of heat is generated. The rubbing surfaces should have sufficient area and mass to absorb the generated heat. The proper

Resolving all of the forces normal to the inclined plane, Resolving all of ...

Resolving all of the forces normal to the inclined plane: A body weighing 500 N is resting on an inclined plane making an angle of 30 o with the horizontal. The coefficient 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