slide perkenalan vip-plan opt
TRANSCRIPT
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Pekenalan Software “VIP-PLANOPT”
TI4101 Perancangan Tata Letak Pabrik
Program Studi Teknik Industri Institut Teknologi Bandung
2010
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Outline
Program Studi Teknik Industri ITB
VIP-PLANOPT
Introduction
Terminology
How to Use?
Performance
Comparison to Other Software
Conclusion
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INTRODUCTION
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Introduction (1)
Program Studi Teknik Industri ITB
• VIP-PLANOPT (Visually Interfaced
Package of floor-PLAN layout
OPTimization)
What?
• 20-50% of operating cost relates to material handling
• US business spend about trillion dollar on new facilities
Motivation
(Productivity and
profitability)
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Introduction (2)
Program Studi Teknik Industri ITB
• Guaranteed superiority on other algorithm for low-cost layout
• Has a record of UNBEATEN PERFORMANCE with a money back guarantee
Filling the Gap
• User-specified pick-up and drop-off points
• Allow any number facilities to be “anchored”
• Specify the shape and the size
• Module Padding
• Forbidden Area Module
• No-Flow Modules
Unmatched Functonality
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Introduction (3)
Program Studi Teknik Industri ITB
• Better than all GA’s, SA’s and the conventional analytical or heuristic techniques
• Has not been published
• Introduced double precision arithmetic
• Introduce new techniques to reduce dependence the user-specified
• Introduction Penalty functions using boundary shape
Optimization Algorithm
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TERMINOLOGY
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Terminology (1)
Program Studi Teknik Industri ITB
MODULE
Representing
departments,
machines,
rooms,
cells, or
spaces
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Terminology (2)
Program Studi Teknik Industri ITB
• Module Aspect Ratio Ri = Wi/Li
• Module Area Ai = Wi * Li
• Module Type Hard vs Soft
• Module Placement (x, y)
• Module Position Movable vs Anchored
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Terminology (3)
Program Studi Teknik Industri ITB
• Forbidden Area Module (FAM) Not Fuctional Facility
• Module Orientation Fixed vs May Flipped
• Module Padding Empty Space
(ex : Allowance)
• Pick-up & Drop-off Points Centroid or No
• Boundary Shape Restriction of Facility
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Terminology (4)
Program Studi Teknik Industri ITB
ENCLOSURE
Bounding rectangle enclosing the modules in a layout
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Terminology (5)
Program Studi Teknik Industri ITB
•Flow Matrix Number of material flow
•Unit Cost Matrix Cost of transporting
a “unit load” per unit distance
•Cost Matrix Total Cost each material flow
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How To Use ? (In PTLP 2011)
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How To Use? (1)
Program Studi Teknik Industri ITB
Define The Modules
Input Flow Matrix
Input Cost Matrix per Unit
Making Boundary Shape
Placement Anchored Modules
Optimize the Problem
Search Optimal Solution
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How To Use? (2)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 15
Define The Modules
1 • Define
Dimension
2 • Define Module
Type
3 • Define Module
Orientation
4 • Define Module
Position
1
2
3 4
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How To Use? (3)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 16
Input Flow Matrix & Cost Matrix Per Unit
5
6
7
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How To Use? (4)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 17
Making Boundary Shape
8
9
10
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How To Use? (5)
Program Studi Teknik Industri ITB
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Placement Anchored Modules
11
12
13
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How To Use? (6)
Program Studi Teknik Industri ITB
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Optimize the Problem
14
15
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How To Use? (6)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 20
Search Optimal Solution
16
17
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PERFORMANCE
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Performance (1)
Program Studi Teknik Industri ITB
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No Number of Modules
Conditions Calculation Time/Solution
1 3 Symetric cost matrix 0.004 seconds
2` 8 8 Hard modules of unequal areas Symetric cost matrix
0.008 seconds
3 20 20 unequal areas Optimal solution 1157!
Best published solution 1264
0.059 seconds
4 50 2.383 seconds
5 100 11.91 seconds
6 125 29.664 seconds
Calculation Time
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Performance (2)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 23
Example of Layout Solution (20 Modules)
Iteration #3 Iteration #40
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Performance (2)
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 24
Example of Layout Solution (125 Modules)
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COMPARISON TO OTHER SOFTWARE
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Comparison to Other Software
Program Studi Teknik Industri ITB
TI4101 Perancangan Tata Letak Pabrik 26
VIP-PLANOPT vs Craft (PTLP Case)
CRITERIA VIP-PLANOPT (PTLP 2011) CRAFT (PTLP 2010)
Input Facilities Dimension, Unit Cost Matrix, Flow Matrix,
Unit Cost Matrix, Flow Matrix, Initial Layout Coordinate,
Number of iteration 41 (0-40) Not specified
Boundary Shape composite square
Facilities Shape Square, 1 facilities = 1 square
Square, Letter L 1 facilities > 6 squares
Facilities Form Location, machine Location
Solution Range 100-200 million rupiahs 90-140 million rupuiahs
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Conclusion
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Conclusion
Program Studi Teknik Industri ITB
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Conclusion
1
• VIP-PLANOPT has been proved that could give better solution in many problems compared with any other approach.
2
• But, VIP-PLANOPT give worse solution in PTLP case. That is because the lack of experience in using this powerful software.
3
• Also user must define the PTLP case more detail when using the software. It is because VIP-PLANOPT provides more parameter which is very relevant with the real system.
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Production Planning and Control System