| Author | Takeshi, Oga |
| Call Number | AIT Thesis no. IE-92-25 |
| Subject(s) | Inventory control--Mathematical models
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of
Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. IE-92-25 |
| Abstract | A problem of determining optimal planned leadtimes, given a due date for a customer
delivery, in assembly systems with stochastic leadtimes is addressed under the assumption that
early departure is forbidden. The assembly systems dealt with are such that a number of
components are procured and then fed into a serial production system. It is shown in two-stage
and three-stage models that the optimal planned leadtimes are found through a number of
unidirectional searches and that each equation to be solved has at most one root when leadtimes
for procurement of the components are independent and identically distributed and holding costs
are equal at the procurement stage. The bounds of the optimal planned leadtimes are also derived
in two-stage and three-stage problems which might facilitate search for the optimal solution.
Moreover, by solving two-stage and three-stage problems, the first order conditions and solution
methodology in multistage problem are inferred. Furthermore, how to formulate the expected
total cost in an assembly system of general configuration is summarized. |
| Year | 1992 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IE-92-25 |
| 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) | Saeed, Khalid ;Thanet Makjamroen |
| Scholarship Donor(s) | The Government of Japan ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1992 |