Modeling and Simulation of Logistics Flows 3 Discrete and Continuous Flows in 2D/3D

Volume 3 begins with an introduction to which are added four chapters focused on modeling and flow simulation in an environment in 2 or 3 dimensions (2D or 3D). They deal with different cases taken from situations found in the field. A conclusion comes close this third book:

• The different software used in this third volume
• Computer simulation of discrete flows
• Mixed flow simulation
• Flows in 3D and the evacuation simulation
• Flows in 3D for conveying and storage

The conclusion discusses the future developments of the software and their integration into society. At the end of each volume is a bibliography and a list of web links. There is also a glossary explaining some abbreviations, acronyms and some very specific terminology of logistics and operations research.

About This Book ix

Introduction  xv

Chapter 1. Computer Simulation of Discrete Flows 1

1.1. Introduction 1

1.2. Worked example  1

1.2.1. Map of the resort 2

1.2.2. Problem statement and design brief  3

1.3. Setting up the project in the ExtendSim 9 software 5

1.3.1. Definition of the principal parameters 5

1.3.2. Designing the model and inputting constraints 7

1.3.3. Definition of flows  22

1.3.4. Running the simulation 22

1.3.5. Creation and allocation of resources  24

1.3.6. Rerunning the simulation  28

1.3.7. Generating a report and analysis  29

1.3.8. Development, enhancement and improvement  31

1.3.9. Hierarchy  38

1.3.10. Appearance design 40

1.4. Conclusion 44

Chapter 2. Simulation of Mixed Flows  47

2.1. Mixed Flows  47

2.2. An example of modeling mixed flows 48

2.2.1. Problem statement and specifications 48

2.3. Creating and inputting the project in ExtendSim 52

2.3.1. Definition of the principal parameters 52

2.3.2. Soda production and bottling  53

2.3.3. Transport, carbonation and labeling  80

2.3.4. Packaging and storage  85

2.3.5. Maintenance and cleaning  93

2.3.6. Finishing touches 98

2.4. Conclusion 108

Chapter 3. 3D Flows and Evacuation Simulation  109

3.1. 3D flows  109

3.2. The Pathfinder software 110

3.3. Evacuation of a building with PathFinder 111

3.3.1. Importing and formatting the first floor plans  113

3.3.2. Creating the different first floor rooms  117

3.3.3. Creating the first floor doors  120

3.3.4. Populating with occupants 122

3.3.5. Simulation and results for the first floor evacuation  123

3.3.6. Incorporating furniture  126

3.3.7. Importing and formatting the second floor plans  128

3.3.8. Creating rooms, doors and populating with occupants 129

3.3.9. Creating the stairs 130

3.3.10. Simulation and results for evacuation of the whole building 134

3.4. Extensions 146

3.4.1. Moving to SFPE mode  146

3.4.2. Groups of occupants 148

3.4.3. Managing the elevators 148

3.4.4. Creating viewpoints 154

3.4.5. Creating camera tours  156

3.4.6. Further possibilities  158

Chapter 4. 3D Flows, Distribution and Warehousing  159

4.1. Product distribution  159

4.2. The FlexSim software 159

4.3. Basic concepts of the FlexSim software  160

4.3.1. General appearance of FlexSim  160

4.3.2. Libraries  162

4.3.3. Mouse-based functions 164

4.3.4. Connections between objects  165

4.4. Worked example  166

4.4.1. Description of the warehouse  167

4.4.2. Warehouse operation 168

4.4.3. Modeling stage 1 170

4.4.4. Modeling stage 2 178

4.4.5. Modeling stage 3 184

4.5. Detailed flow and task executer management 194

4.5.1. Generation of containers with several types of content 194

4.5.2. A fixed resource for task executers  198

4.5.3. Shared task executers  200

4.5.4. Pulled and pushed flows and more 204

4.5.5. Naming items 210

4.5.6. Timetables, groups and resources 216

4.6. Experimenter  231

4.6.1. Constructing the model 231

4.6.2. Adding the dashboard  232

4.6.3. Configuring the Experimenter 235

4.7. Concluding remarks  239

Conclusion 241

Glossary  245

Bibliography  251

Index 259

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