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

What is suspension system? , (a) What is suspension system? Write down its ...

(a) What is suspension system? Write down its functions. (b) What are the types of suspension system? Write the names of suspension system used in front and rear of two wheelers

Authoe, can i ask who the author of this website is?

can i ask who the author of this website is?

Curvilinear motion of a partical, Consider a particle and its path of trave...

Consider a particle and its path of travel.The position of a particle P at any time t can be described by specifying its: (a)Rectangular coordinates; X,Y,Z (b)Cylindrical coordinat

Determine the tension and reaction in cable - mechanics, Q:  The12m boom A...

Q:  The12m boom AB weight 1 KN, the distance of center of gravity G is 6 m from point A.  For the position given, determine the tension T in cable and reaction at B.

Explain rigid screed extension, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is precipitation, Q. What is Precipitation? Precipitation includes...

Q. What is Precipitation? Precipitation includes rain, snow and hail. The maximum, average, and storm volumes will have an impact on the size and positioning of facilities to c

Thermodynamics, You wish to boil 1.2 kg of water, which has a specific heat...

You wish to boil 1.2 kg of water, which has a specific heat capacity of 4186 J/kg-K. The water is initially at room temperature (293 K). Water boils at 373 K. How much energy must

BEEE, What is alternating quantity?

What is alternating quantity?

State constructive solid geometry, Constructive Solid Geometry (Csg or C-Re...

Constructive Solid Geometry (Csg or C-Rep) A CSG model is based on the topological notion that a physical project object can be divided into a set of primitives that can be com

Engine, maximum rpm at engine

maximum rpm at engine

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