Modelling and simulation study, Mechanical Engineering

Assignment Help:

A city owns and operates a garage in which maintenance and repair work is performed on city-owned vehicles. Included among these vehicles are motor-pool cars, heavy-duty trucks, and so on. City officials are receiving pressure from the police force to keep the police cars operational and they are considering extending the 8 hour work day of the garage by hiring a part time mechanic to work on the vehicles after the regular mechanic has finished his work day.

Project Goal

Determine the effect of extending the work day by 2, 4, 8, and 10 hours to see the effect on keeping the police cars available.

Output

To measure the performance of the garage, output of interest includes

• the average number of police cars serviced in a day and

• the average time a police car resides in the garage from arrival to completion of the servicing.

SUI Details

The city is not large; as a result, the garage is equipped with only one service bay, and employs only one mechanic. This means that service can be performed on only one vehicle at a time. All of the city-owned vehicles are regularly scheduled to come in to the garage for maintenance work. Vehicles scheduled to come in on a given day are all left at the garage at the end of the preceding day. They are therefore already waiting at the garage when each work day begins. A work day itself consists of 8 hours.

Under certain conditions, regularly scheduled maintenance work which is in-progress can be interrupted, so that the service bay can be used for a more important purpose. In particular, the city attempts to keep a full fleet of police cars operating at all times. The police cars are in use 24 hours per day, under demanding conditions. Whenever there is a problem with one of these cars, the car is brought immediately to the garage for unscheduled service. If another vehicle is undergoing scheduled maintenance at the time, the just-arrived police car is permitted to preempt the service bay, so that its repair can begin without delay. However, a police car in need of unscheduled repair is not permitted to preempt another police car on which unscheduled repair is in progress. Of course, if the garage is not open when they arrive, they must wait until 8 am before servicing can begin.


Related Discussions:- Modelling and simulation study

Point of inflexion, Point of inflexion: Define the term point of cont...

Point of inflexion: Define the term point of contraflexure or point of inflexion. Also define point of zero shear force?  Sol.: The points (other than extreme ends of beam)

Thermodynamics, why there is heat is not completely converted into work in ...

why there is heat is not completely converted into work in ideal case?

What is isometric drawing, It is a 3-D drawing used by draftsmen, architect...

It is a 3-D drawing used by draftsmen, architects etc

Telescopic hydraulic fork , Telescopic Hydraulic Fork: This type of suspen...

Telescopic Hydraulic Fork: This type of suspension system is used to serve for front part of motorcycle. Figure (Front Suspension Fork) shows detailed view of front fork assembly.

Problems on structural design of combined footings, Problems on Structural ...

Problems on Structural Design of Combined Footings a. Two columns 50 cm x 50 cm in size support service loads of 1200kN and 800kN.The centre to centre spacing between columns

Welder performance qualifications, WELDER PERFORMANCE QUALIFICATIONS ...

WELDER PERFORMANCE QUALIFICATIONS Requirement of Welder Qualification In performance qualification, the basic attempt is to establish the ability of the welder to dep

Explain working of steam sampling, Q. Explain working of Steam Sampling? ...

Q. Explain working of Steam Sampling? Sample coolers shall be supplied by the Vendor. A common sample spillage trough shall also be provided by the Vendor, with a cover screen

Gravitation, What is the clear difference between gravitational potential a...

What is the clear difference between gravitational potential and gravitational potential energy ? Ans) A body A of mass m is placed in the gravitational field of a body B of mass

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