Optimal stationary and renewal policies for multi-level, multi-product production and inventory systems | |
| Author | Wang, Lei |
| Call Number | AIT Thesis no. IE-91-29 |
| Subject(s) | Production planning Inventory control |
| Note | A thesis study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | The optimal production and ordering policies for multi-product multi-level production systems are studied in t\Vo kinds of mathematical models. Stationary and deterministic demands for end products are assumed to be met without backlogging. A fixed order cost and echelon holding cost at each stage are considered. The objective is to 111inimize the average system cost per unit time over an infinite titjie horizon. The renewal models developed assume that there exists a stationary renewal policy or a stationary nested policy for general production systems. The algorithms are developed to find the optimal policy for the system. The power-of-two policies, which have a property tpat the ratio of reorder intervals of any two successive stages is an integer power of two, is presented and is compared with the renewal policies. The stationary nested power-of-two policy is obtaine4 following the heuristic method of MAXWELL & MUCKSTADT (1985). The stationary one is developed by ROUNDY (1986). Programs for solving these models are written and implemented in the Sony NEWS-OS work station. The . optimal lot-size and the optimal reorder interval for each stage in general production systems are obtained and the effectiveness of different policies are discussed. |
| Year | 1991 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Industrial Engineering (IE) |
| Chairperson(s) | Fujiwara, Okitsugu |
| Examination Committee(s) | Sharif, M. Nawaz ;Do Ba Khang |
| Scholarship Donor(s) | Government of Belgium |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1991 |