Stocks & Flows
M. Haddad
Stocks
Stocks: elements (material, information) of the system
that you can see, count, measure at any given time
o
o
Stocks create accumulations (a historical record in the s
CLD Practice: Real World Systems
M. Haddad
INE599 System Dynamics
Simple Dynamics
Add Polarities, Variables, Links
+
Profits
Attractiveness
of Market
+
+
Number of
R or B ?Competitors
+ or ?
Price
Pr
Elementary Structures:
Modeling Delays in Systems
M. Haddad
INE599 System Dynamics
What are Delays
Delay is a process whose output lags (in time) behind input
Input
Delay
Output
Delays are a critica
Fundamental System Structures
and Behaviors
M. Haddad
Six Fundamental System Behaviors
System Structure 1: Reinforcing Feedback
Example Systems:
Savings Account, Pollution
System Behavior 1: Exponenti
Introduction to Modeling and Simulation
with Vensim
M. Haddad
Model Building Tools
Variable: insert Constants, Auxiliaries and Data
Box Variable: insert Stocks (Levels)
Arrow: insert Information Links
Causal Loop Diagrams
M. Haddad
INE599 System Dynamics
What is Causal Loop Diagramming?
A tool to represent the structure of (complex) systems
Quick capture of the possible causes of dynamics
Captur
Elementary Structures:
Modeling Oscillatory Systems
M. Haddad
INE599 System Dynamics
Oscillatory Systems
Oscillation is:
o
one of the most common dynamic behaviors in the world
o
characterized by man
Elementary Structures:
Modeling Positive-Negative Feedback Systems
M. Haddad
INE599 System Dynamics
Elementary Positive-Negative Feedback Structure
Structure includes both positive and negative feedb
CLD Reference Modes
M. Haddad
INE599 System Dynamics
What is a Reference Mode
A reference mode is a graph of the behaviors of the different
variables in a causal loop diagram (CLD) over time
o
We use
1
2
3
4
5
Control Chart for Fraction Nonconforming
6
Control Chart for Fraction Nonconforming
7
Control Chart for Fraction Nonconforming
Trial Limits
8
9
10
Example 6.1
11
Example 6.1
12
Example 6.1
1
1
2
3
Basic SPC Tools
4
Process Quality
If a product is to meet customers requirements, it should be produced by a
process that is stable and repeatable, i.e., Process should be capable of
operating w
Chapter 10
1
Chapter 10
2
Learning Objectives
Chapter 10
3
Statistical Process Control for Short
Production Runs
Applications occur in Job-Shop manufacturing
systems
Some of the SPC used in this sit
Introduction to Statistical Quality
Control, 6th edition
Douglas C. Montgomery
Arizona State University
Learning Objectives
Definitions and Meaning of Quality
Quality of a product can be evaluated in
1
2
3
Need for Controlling and
4
5
Subgroup Data with Unknown and
6
7
8
9
10
11
Phase I Application of x and R Charts
Eqns 5-4 and 5-5 are trial control limits
Determined from m initial samples
T
1
2
3
Statistics and Sampling Distributions
Statistical inference is concerned with drawing conclusions
about populations (or processes) based on sample data from that
system
Random sample a sample
2
3
Process Capability
Natural tolerance limits are defined as follows:
4
Uses of process capability data:
5
Reasons for Poor Process Capability
Process may have good
potential capability
6
Data colle
Learning Objectives
2
Describing Variation
Stem-and-Leaf Display
Easy to find percentiles of the data
3
Describing Variation
Plot of Data in Time Order
Also called a run chart
Marginal plot
produced
2
3
4
5
6
7
8
9
Tabular Cusum Example
10
Cusum Status Chart (Figure 8-3a)
11
MINITAB Version of Cusum Status
Chart
MINITAB calculates
the lower cusum this
way
12
Tabular Cusum Example
13
Recommendatio
Lebanese American University
School of Engineering
Department of Industrial and Mechanical
Engineering
Green Field Production Ergonomics Study
INE416 Project
Fall 2016
Names and ID:
Kevin Boutros 2014
Lebanese American University
School of Engineering
Department of Industrial and Mechanical
Engineering
Green Field Production Ergonomics Study
INE416 Project
Fall 2016
Names and ID:
Kevin Boutros 2014
Project Name: LE BL CROISSANT TRANSPORTATION SYSTEM
Project Participants: CARL BAROUD, KEVIN BOUTROS, THOMAS DAWAF, EMILIO SAAD
DEFINITION:
Transportation costs at Le Bl Croissant S.A.R.L. are being q
Project Name: PREMIUM ANIMAL BEDDING PRODUCTION LINE
DEFINE:
Green Field Production (GFP) is a company that has several production lines, of which wood animal bedding, under the
name of Premium Animal
"Le Bl Croissant" ARENA Simulation
Boutros,K. ; Dawaf,T. & Saad,E.
Department of Industrial and Mechanical Engineering
Lebanese American University
Byblos, Lebanon
E-Mail: [email protected], thoma
SUPPLY CHAIN MANAGEMENT HOMEWORK #2 SPRING 2017
1. Consider the following financial data from the past year for Midwest Outdoor Equipment
Corporation.
Gross income
Total sales
Total credit sales
Net i
Chapter 1: Strategy Planning, Operation
difference between what the value of the final product is to the customer and the costs the entire
supply chain incurs in filling the customers request.
Supply
INE 542 / 840C
Lebanese American University
School of Engineering and Architecture
Supply Chain Mgmt.
M.W.F. 12:00 12:50
Dept. of Industrial & Mechanical Engineering
3 Lecture Credits
Frem Civic Cente
SUPPLY CHAIN MANAGEMENT HOMEWORK #3 SPRING 2017
1. A manufacturer of cat towers wishes to locate a super assembly facility to meet their cat
tower assembly needs for the next millennium. Currently, ca