Transcript 1

Chapter 1
Introduction to
Simulation Modeling
T. Altiok and B. Melamed
Simulation Modeling


Paradigm that creates simplified
representations of complex systems
Generates system histories and observes
system behavior and statistics over time

Goals are understanding system performance
and improving system design
Chapter 1 Introduction to
Simulation Modeling
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System vs. Its Model
• Simplification
Real System
• Abstraction
• Assumptions
Chapter 1 Introduction to
Simulation Modeling
Model
3
Model Classification


Physical
(prototypes)

Analytical
(mathematical)

Computer
(Monte Carlo
Simulation)

Descriptive
(performance
analysis)
Prescriptive
(optimization)
Chapter 1 Introduction to
Simulation Modeling
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Physical
(Prototypes)
Chapter 1 Introduction to
Simulation Modeling
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Analytical
(Mathematical)


Single Stage Queuing Model



 n  P( N  n )
  1   
1
W
 
L  W 
Wq  W 

 
Chapter 1 Introduction to
Simulation Modeling
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


    
2
Lq  Wq 
    
6
Computer
(Monte Carlo Simulation)
Chapter 1 Introduction to
Simulation Modeling
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Descriptive
(Performance analysis)
Simulation
vs.
Real World
Chapter 1 Introduction to
Simulation Modeling
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Prescriptive
(Optimization)
Chapter 1 Introduction to
Simulation Modeling
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Typical Uses of Simulation


Estimating a set of productivity measures in production
systems, inventory systems, manufacturing processes,
materials handling and logistics operations.
Designing and planning the capacity of computer systems
and communication networks so as to minimize response
times.

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Conducting war games to train military personnel or to
evaluate the efficacy of proposed military operations
Evaluating and improving maritime port operations, such as
container ports or bulk-material marine terminals (coal, oil or
minerals), so as to find ways of reducing vessel port times.
Improving health care operations, financial and banking
operations, transportation systems and airports, among
many others.
Chapter 1 Introduction to
Simulation Modeling
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