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Improving the performance of a shoe-manufacturing plant | |
Author | Jiao, Yi-guang |
Call Number | AIT Thesis no.IE-94-34 |
Subject(s) | Production management |
Note | A thesis submitted in partial fulfilment 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-94-34 |
Abstract | The study is focused on the improvement of manufacturing performance processed on a shoe manufacturing factory (RFIII), especially on two main manufacturing divisions. Mass-density and frequently changed product models and worker constructions are prominent features of the manufacturing of this company. According to these features, intensive tests of operation times for different operations has been done using carefully chosen DTSIS time study policy. The time test results both on standard operation time and their variance. On the basis of time study, effects of operation times on line performance are researched and suitable line balancing techniques are tested by means of line balancing. Line balancing is done in two steps. A software from Storm which is the realization of HOFFMANN Branch & Bound algorithm are used in first step of line balancing treating operation times as constants. After that BENJAAFAR model are used to evaluate the solutions treating operation times as stochastic variables. BENJAAF AR has modeled flow lines as M/M/k multiserver queue systems. On consideration of frequently changed situations in workers, work assignment flexibility is advised to the company. Ranked positional weight(RPW) line balancing technique is also utilized to the aim of comparing the line performance with operation groups and without operation groups in manufacturing flow lines. The result gained from RPW and those from close study to expected waiting time both indicate a large advantage of using groups. The line balancing techniques used in this study are shown better than that of company used now. Satisfied line balancing solutions for chosen assembly lines and stitching lines are also achieved in this study. |
Year | 1994 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IE-94-34 |
Type | Thesis |
School | School of Engineering and Technology (SET) |
Department | Department of Industrial Systems Engineering (DISE) |
Academic Program/FoS | Industrial Engineering (IE) |
Chairperson(s) | Pandey, P. C. |
Examination Committee(s) | Tabucanon, Mario T. ;Kuehn, -Ing. Wolfgang |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |