de
en
Schliessen
Detailsuche
Bibliotheken
Projekt
Impressum
Datenschutz
de
en
Schliessen
Impressum
Datenschutz
zum Inhalt
Detailsuche
Schnellsuche:
OK
Ergebnisliste
Titel
Titel
Inhalt
Inhalt
Seite
Seite
Im Dokument suchen
Optimizing production and outbound distribution decisions with fixed departure times : static and dynamic scheduling approaches / vorgelegt von David Bachtenkirch, M.Sc. Wuppertal, März 2021
Inhalt
List of Figures
List of Tables
List of Algorithms
List of Abbreviations
List of Symbols
Introduction
Categorization
Purpose of the Study
Outline
Selected Topics of Operations Research and Scheduling
Operations Research
Optimization Problems
Complexity Theory
Optimization Methods
Deterministic Scheduling
Framework and Notation
Complexity Hierarchy
Scheduling Algorithms
Dynamic Scheduling
Integrated Production and Outbound Distribution Scheduling with Fixed Delivery Departure Dates
Considering Fixed Delivery Departure Dates
A Classification Scheme for IPODS-FD
A Review of Models with Fixed Departure Dates
Models with Predetermined Deliveries
Models with Equidistant Deliveries
Models with Arbitrary Delivery Departure Dates
Models with Multiple Customers
Models with Batch Deliveries
Conclusion
The Current State of Research
Research Gaps and Opportunities
The Scheduling Problem with Flexible Definable Departure Dates
Problem Description and Application Areas
Problem Definition and Notation
A Mixed-Integer Linear Programming Formulation
Computational Complexity
Conclusion
The Developed Branch and Bound Algorithm
Principles of Branch-and-Bound Algorithms
Search Strategy
Branching Strategy
Pruning Rules
Search Space and Solution Properties of the SFDDHT
Schedule Representation
Canonical Schedules
Canonical Search Space
Decomposition of the Canonical Search Space
Structural Analysis of Canonical Schedules
Dominance Relations and Procedures
Dominating Permutations
Efficient Comparison of Permutation Schedules
Permutation Dominance Procedure
Production Block Dominance Procedure
Delivery Batch Dominance Procedure
Dominance Table
Application Order of the Dominance Procedures
Preprocessing Procedures
Precedence Constraints
Position Constraints
Dynamic Feasibility Testing
Branching Strategy
Lower Bounds
Linear Assignment Bound
Bounding the Number of Additional Transports
Parallel Machine Bound
Partition Bound
Discussion of the Lower Bounds
Algorithm Execution
Conclusion
The Developed Greedy Randomized Adaptive Search Procedure
Principles of the Solution Method
Construction Phase
Selection Order of Jobs
Construction Moves
Reducing the Set of Construction Moves
Outline of the Construction Procedure
Repair and Improvement Phase
Reinsertion Moves
Reducing the Set of Reinsertion Moves
Path relinking
Elite Pool and Implementation
Conclusion
The Developed Real-Time Control Approach
The Considered Dynamic Scheduling Problem
The Real-Time Control Approach
Update Handling
Simulation of the Current Anticipation Horizon and Static Instance Generation
Solving Static Instances
Adaption of the Stored Theoretical Schedules
Integration of Order Requests
Workload-Balancing Techniques
Expected Workload Balancing
Calculation of the Required Utilization
Rescheduling
Conclusion
Evaluation of the Developed Optimization Approaches
Instance Generation
Static Instance Generator
Dynamic Instance Generator
Recommended Workloads
Setup of the Computational Experiments for the SFDDHT
Comparison of the Proposed Lower Bounds
Comparison of the CPLEX Solver and the SFDDHT-B&B
Evaluation of the SFDDHT-GRASP
Setup of the Computational Study for the D-SFDDHT
Comparison of the Real-Time Control Workload-Balancing Methods
Initial Analysis of the Results
Analysis with Different Performance Indicators
Comparison with Static Schedules
Analysis for Flexible and Inflexible Environments
Comparison of Different Real-Time Control Time Settings
Evaluation of the Real-Time Control Approach Executed on Instances with an Increased Number of Dynamic Job Arrivals
Evaluation of the Optimization Performance
Conclusion
Summary and Outlook
Summary and Research Findings
Limitations and Future Research
Bibliography
Additional Results