Process planning with genetic algorithms on results of knowledge-based reasoning

1996 ◽  
Vol 9 (2) ◽  
pp. 145-166 ◽  
Author(s):  
M. Horvath
Keyword(s):  
Genetic Algorithms ◽  
Process Planning ◽  
Knowledge Based

scholarly journals Integrated process planning, WSPT scheduling and WSLK due-date assignment using genetic algorithms and evolutionary strategies

2017 ◽  
Vol 8 (1) ◽  
pp. 73-83
Author(s):  
Halil Ibrahim Demir ◽  
Onur Canpolat
Keyword(s):  
Genetic Algorithms ◽  
Process Planning ◽  
Random Search ◽  
Evolutionary Strategies ◽  
Integrated Process ◽  
Due Dates ◽  
Due Date ◽  
Planning And Scheduling ◽  
Due Date Assignment ◽  
Genetic Search

Process planning, scheduling and due-date assignment are three important manufacturing functions in our life. They all try to get local optima and there can be enormous loss in overall performance value if they are handled separately. That is why they should be handled concurrently. Although integrated process planning and scheduling with due date assignment problem is not addressed much in the literature, there are numerous works on integrated process planning and scheduling and many works on scheduling with due date assignment. Most of the works in the literature assign common due date for the jobs waiting and due dates are determined without taking into account of the weights of the customers. Here process planning function is integrated with weighted shortest processing times (WSPT) scheduling and weighted slack (WSLK) due date assignment. In this study unique due dates are given to each customer and important customers gets closer due dates. Integration of these three functions is tested for different levels of integration with genetic algorithms, evolutionary strategies, hybrid genetic algorithms, hybrid evolutionary strategies and random search techniques. Best combinations are found as full integration with genetic search and hybrid genetic search. Integration of these three functions provided substantial improvements in global performance.

Intelligent Process Planning Implemented As an Integrated Module of CIM

1997 ◽  
Author(s):  
Dusan N. Sormaz ◽  
Behrokh Khoshnevis
Keyword(s):  
Process Planning ◽  
Search Algorithm ◽  
Computer Integrated Manufacturing ◽  
Planning System ◽  
Process Selection ◽  
Process Sequencing ◽  
Knowledge Based ◽  
Completion Process ◽  
Integrative Process ◽  
The One

Abstract In this paper we describe an architecture of a new integrative process planning system as a part of computer integrated manufacturing research system. The process planning procedure is comprised of three phases: feature completion, process selection and process sequencing. We applied a knowledge-based approach to feature completion and process selection, and the space search algorithm for process sequencing. Description of these phases is provided and underlying knowledge representation explained. Integration between the process planning, on the one side, and CAD and scheduling, on the other, is discussed. System implementation has been described and several examples of the system execution are shown.

Sign in / Sign up

Export Citation Format

Share Document