| Author | Suthad Sinsuesatkul |
| Call Number | AIT Thesis no. IE-94-02 |
| Subject(s) | Scheduling (Management)
Production planning
|
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of
Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ;no. IE-94-02 |
| Abstract | This study concerns with the production planning problem of a multi-product
single-stage system of the Siam-Fibre Cement company. At first, the current
practices of the company related to the production planning, forecasting,
production planning, and scheduling are investigated. Then, practical and
appropriate procedures to improve the efficiency are developed.
Considering data availability and ease of implementation, two types of time
series forecasting models, i.e., Winter's model and ARIMA model, are suggested.
Data of company sale are divided into two data sets. The first data set is used for
model developing and the second data set is used for model validation. Model
evaluation is done by comparing the results of both models with current practice
in terms of forecasting error measures. Both models give better results than those
of current practice.
For production planning, the current practice model uses linear programming
to optimize total cost. All relevant costs are included in the model and the
assumption of linear costs is also reasonable. Thus, it is not necessary to develop a
new model. For the implementation period, the output of model indicates the
products to be produced on a specific machine. Now, the final task is how to
schedule these products on each machine to minimize setup time.
The problem of machine scheduling is analogous to combinatorial problem
known as the traveling salesman problem. This problem can be solved by mixed
integer programming. However, considering ease of implementation, a heuristic is
suggested for ease of solution, and implementation. Both the results of heuristic
and traveling salesman algorithm yield the same optimum results. |
| Year | 1994 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IE-94-02 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Engineering (IE) |
| Chairperson(s) | Nagarur, Nagendra N. |
| Examination Committee(s) | Pastijn, H. ;Kuehn, W.
|
| Scholarship Donor(s) | The Siam Cement Co., Ltd. ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |
