State the planning the foundation for reciprocating engines, Mechanical Engineering

Assignment Help:

State the Planning the foundation for reciprocating engines

i)  The eccentricity of  the common centre of gravity of machine and foundation referred to the centroid of base area should not exceed 5% of  the corresponding base dimension of  the foundation.

ii)  To decrease the transmission of vibrations to adjacent structures, it is necessary  to provide an air gap around the foundation. Where the elastic under layers such as spring casings are provided below the foundation, the latter should be placed in a reinforced concrete trough and due provision made to give access to  the under lying layers for periodical inspection of replacement.

iii)  In order to reduce the horizontal amplitudes, the height of foundation should be selected as small as possible. A  larger base dimension is selected in the direction of the rock moment if any, acting on the foundation.

iv)  If  several machines are located close-by in the same machine hall, a common foundation may be recommended for all of  the machines, particularly when the underlying soil is soft. However,  the analysis of  vibrations of the foundation for such a group of machines, is complicated. For practical purposes, the common foundation may be considered as broken up to sections corresponding to individual foundations and the computations carried out as if  they were separate foundations. The permissible amplitudes may be increased to 0.25 mm.

 


Related Discussions:- State the planning the foundation for reciprocating engines

Components vs. Parts, What is the difference between a mechanical component...

What is the difference between a mechanical component and a mechanical part?

Evaluation of the internal energy of steam - thermodynamics, Evaluatio n o...

Evaluatio n of the Internal Energy of Steam: It is actual heat energy stored in steam above the freezing point of water. We know enthalpy = internal energy + pressure ener

Elevator, These are differentiated from hoists by the fact that the opera...

These are differentiated from hoists by the fact that the operator rides with the load. There are many different types of drives for such elevators but in general electric

Electric discharge phenomenon, ELECTRIC DISCHARGE PHENOMENON The flow of ...

ELECTRIC DISCHARGE PHENOMENON The flow of electricity through metallic solids, or through liquid metals is called Conduction. The electricity  flow through ionic solutions

Interference, construction and working of michelsons interferometer

construction and working of michelsons interferometer

Newtons ring, a plano concave lens is used instead of plano convex lens in ...

a plano concave lens is used instead of plano convex lens in newtons ring

Objectives registration scheme entrepreneurship development, Objectives of ...

Objectives of the Registration Scheme They are summarized as follows: To enumerate and maintain a roll of small industries to which the package of incentives and suppor

Ladder slip, ladder slip: A uniform ladder having length of 7m rests ...

ladder slip: A uniform ladder having length of 7m rests against vertical wall with which it makes an angle of 45º, coefficient of friction between ladder and wall is 0.4 and

Calculate net force on the piston, A vertical petrol engine 100mm diameter ...

A vertical petrol engine 100mm diameter and 120mm stroke has a connecting rod 250mm long. The mass of the  piston is 1.1kg. The speed is 2000 r.p.m. On the expansion stroke with a

Metallurgy, what is mean by precipitation hardening?

what is mean by precipitation hardening?

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