Computerized scheduling and control manufacturing systems, Mechanical Engineering

Assignment Help:

Characteristics Computerized Scheduling And Control Manufacturing Systems

Introduction

This section illustrates the unique characteristics of CCS or Computer Controlled Scheduling. The uniqueness is because of the fact that only restricted human intervention is allowed throughout the operation of the system. Usually, main emphasis is specified to the complexity resulting from the explicit consideration of usual resource models, the utilization of programmable and flexible technologies, and also the short-term nature of the decisions.

For a specified set of production needs and physical system configuration, scheduling deals along with the coordination and timing of activities that are competing for general resources. For capable operation of manufacturing systems, scheduling is significant. This commonly corresponds to a complex combinatorial optimization problem, where the objective function contains conflicting and multiple performance criteria. Manufacturing scheduling and control is normally decomposed in a hierarchy of decision levels because of its complexity. This section focuses upon the control and scheduling decisions at the operational level of the hierarchy. At this stage, this is assumed that a supervisory computer is responsible for the automated storage systems, handling systems and auxiliary workstations. The equipment under the control of the supervisory computer may comprise CNC machining centers, automatic storage, conveyors, and retrieval systems, degreasing stations. During the time domain, the control decisions deal along with the instantaneous future and are directly utilized in the execution and coordination of part flow and processing.

The coordination, scheduling and control of the above systems are obviously a complicated task. The lack of a generic scheduling model appropriate to this automated environment is actually an inhibitor to its widespread implementation.  Providentially, the advances in computing and manufacturing technology here make this possible to deal along with this problem in an efficient way.

In this section, section introduction deals along with traditional job shop scheduling. Section of Characteristics of Computer Controlled Scheduling, illustrates the characteristics which make the computer scheduling problem unique.  Section of Dynamic Machine Routing, discusses the scheduling approaches utilized in research and practice aimed at the efficiently use of automated manufacturing systems.


Related Discussions:- Computerized scheduling and control manufacturing systems

Evaluate stress induced in rod, Evaluate stress induced in rod: The t...

Evaluate stress induced in rod: The two copper rods and one steel rod lie in vertical plane and support load of 50kN together as shown in figure given below. Each rod is 25 m

Define the project scope, Q. Define the project scope? The Design Basis...

Q. Define the project scope? The Design Basis Memorandum defines the project scope. This includes basic design concepts and the basis and philosophies upon which the project s

How to create the solid models, Creating 3-d solid models Two basic app...

Creating 3-d solid models Two basic approaches to create solid models are :    (i)  Constructive solid geometry (CSG or c-rep), and (ii)  Boundary representation (b-rep).

Tension in the strings - mechanics, Tension in the strings: Sol.: Wh...

Tension in the strings: Sol.: When weight is attached to string then it will be in tension. The diagrams are shown below to describe this particular concept.

How can we transfer data among cad system, How can we transfer data among C...

How can we transfer data among CAD system The three main reasons for transferring data among CAD systems (or CAE systems or agents etc.) are : (i)  To communicate with remot

Illustrate clay content test, Q. Illustrate Clay content test? Under th...

Q. Illustrate Clay content test? Under this test, the clay content is measured by washing it off the sand sample. The standard dried sand sample (50 gm) is put in a mixing devi

Describe about water disposal system, Q. Describe about Water disposal syst...

Q. Describe about Water disposal system? Disposal water from the Evaporator Package is cooled down to 50°C by the Disposal Cooler and is sent to Disposal Water Tank(s). Disp

Driveshaft design, The  impeller driveshaft  can either be top driven or bo...

The  impeller driveshaft  can either be top driven or bottom driven. Again there are advantages of each and the choice often varies with scale of operation: (a) Top driven (labo

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