General resource models, Mechanical Engineering

Assignment Help:

General Resource Models

In  computer  controlled scheduling,    material,  machine handling  equipment,  tooling  and  buffer  space  should  be comprised. The explicit consideration of these resources conclude in additional decisions to be made  in  the  schedule  and  accordingly  the  problem  difficulty  is  raised.  For illustration,  the  general  thing  in  computer  controlled  systems  is  the  simultaneous need of two or more resources for the execution of a particular activity. An instance is the task of loading a part onto a machine by using a robot. At several point of time in loading operation, the robot should hold the part in position for the machine to secure the part in its machining location. Obviously, the robot and the machine are utilized simultaneously in this operation. In case of tooling, the problem is additionally difficult via the fact that tools may be shared among various machines. Thus, in making sequencing decisions one must schedule both tool movement and part movement; that is tools have part attributes as they will also consume material handling resources.

Assumption A1, A2 and A4 that are mentioned in earlier section should be relaxed to capture the nature of computer controlled scheduling. Mostly A1 is relaxed as if several operators need extra than one resource at the time, then Mr ∩ Ms ≥ 1.  A 2 relaxed since when the loading and unloading are disaggregated from the processing time, the result is that more than one operation in a job requires the same machine, or ¦jk  ∩ Mr¦≥ 1  and A 4 is relaxed since other resources as like: material handlers must be considered. One time the assumption stated above are relaxed, the machine scheduling problem becomes an extra usual Resource-Constrained Scheduling Problem (RCSP).

 

 


Related Discussions:- General resource models

Thermodynamics, Two kg Ammonia (mA) at PA = 300 kPa and TA = -10ºC and 1 kg...

Two kg Ammonia (mA) at PA = 300 kPa and TA = -10ºC and 1 kg Ammonia (mB) at PB = 300 kPa and TB = 100ºC are mixed in a constant pressure and adiabatic process. Find the following:

Illustrate the importance of aesthetic consideration, You as design Enginee...

You as design Engineer, Describe how you would decide a suitable factor of safety for the design of a new mechanical elements. Illustrate the importance of aesthetic considerati

Common rules concerning corresponding option , COMMON RULES CONCERNING CORR...

COMMON RULES CONCERNING CORRESPONDING OPTION:     Let us consider the DATA DIVISION entries as shown below. Now, let us see which data items will be moved if

Micrometer or screw gauge-measuring tools , Micrometer (or Screw Gauge): T...

Micrometer (or Screw Gauge): There are two different types of micrometers - inside and outside micrometers. A micrometer also has two scales - Main scale and Vernier scale (Figure

Compare solid shaft with the hollow, Compare solid shaft with the hollow: ...

Compare solid shaft with the hollow: Compare solid shaft with the hollow shaft, by strength and their weight. Sol.: ( a ) Comparison by strength: Assume that both the s

Manufacturing methods of ceramics, Manufacturing Methods Of Ceramics Th...

Manufacturing Methods Of Ceramics The ceramics manufacturing consists in shaping along with or without pressure and firing to consolidate. The simplest and cheapest process of

Explain degree of freedom - jig and fixture, Explain Degree of Freedom - Ji...

Explain Degree of Freedom - Jig and Fixture The complete location of components inside a jig or fixtures can be understood with the help of figure. The work piece is a

Camshaft-basic components of engine , Camshaft : The camshaft controls th...

Camshaft : The camshaft controls the opening and closing of the two valves. The associated parts are push rods, rocker arms and valve springs. The camshaft is driven by a camchai

Determine the apparent range of the target - radar system, Consider radar w...

Consider radar with a PRF of 5 kHz. What is the maximum unambiguous range R ua of this radar, in km?  If a target is located at a range of 50 miles, how many pulses will the r

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