Assembly Line Feeding Methods and Production Downtime
(2020) MTTM10 20201Packaging Logistics
- Abstract
- A key process in a manufacturing system with assembly lines, is the assembly line feeding, i.e. how material needed in the assembly process is supplied at the assembly lines. This has been formulized as the assembly line feeding problem.
The purpose of the thesis project is to give insights into the impact the choice of line feeding method has on production downtime. Moreover, the impact the production batch size has on the relative performance of different line feeding methods is analyzed. The line feeding methods examined are line stoking and kitting, with either dedicated or shared storage locations in the material façade of the assembly lines.
To evaluate the performance of the different line feeding methods, a literature review and... (More) - A key process in a manufacturing system with assembly lines, is the assembly line feeding, i.e. how material needed in the assembly process is supplied at the assembly lines. This has been formulized as the assembly line feeding problem.
The purpose of the thesis project is to give insights into the impact the choice of line feeding method has on production downtime. Moreover, the impact the production batch size has on the relative performance of different line feeding methods is analyzed. The line feeding methods examined are line stoking and kitting, with either dedicated or shared storage locations in the material façade of the assembly lines.
To evaluate the performance of the different line feeding methods, a literature review and a simulation study are carried out. The key finding of the project are summarized below:
1. In the assembly system examined, kitting reduces production downtime compared to line stocking. The difference in performance is largest for small batch sizes. However, kitting outperforms line stocking even for larger batch sizes. Moreover, kitting may outperform line stocking even for small kit sizes, resulting in lower WIP-levels in the assembly lines.
2. The production batch size does not seem to have any clear impact on production downtime of the assembly lines when kitting is used. With line stocking, on the other hand, production downtime increases when the batch size decreases and model changes become more frequent.
3. The use of dedicated or shared storage locations in the assembly line does not have any significant effect on the production downtime. Similarly, the production batch size does have any significant effect on the relative performance of dedicated or shared storage locations.
Additional research is needed into the effect variability has on the performance of different line feeding methods, the effect the choice of line feeding methods has on WIP-levels and AGV-utilization, and the costs associated with different line feeding methods. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9025997
- author
- Ersbo, Simon LU
- supervisor
- organization
- course
- MTTM10 20201
- year
- 2020
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 9025997
- date added to LUP
- 2020-08-12 11:06:49
- date last changed
- 2020-08-12 11:06:49
@misc{9025997,
abstract = {{A key process in a manufacturing system with assembly lines, is the assembly line feeding, i.e. how material needed in the assembly process is supplied at the assembly lines. This has been formulized as the assembly line feeding problem.
The purpose of the thesis project is to give insights into the impact the choice of line feeding method has on production downtime. Moreover, the impact the production batch size has on the relative performance of different line feeding methods is analyzed. The line feeding methods examined are line stoking and kitting, with either dedicated or shared storage locations in the material façade of the assembly lines.
To evaluate the performance of the different line feeding methods, a literature review and a simulation study are carried out. The key finding of the project are summarized below:
1. In the assembly system examined, kitting reduces production downtime compared to line stocking. The difference in performance is largest for small batch sizes. However, kitting outperforms line stocking even for larger batch sizes. Moreover, kitting may outperform line stocking even for small kit sizes, resulting in lower WIP-levels in the assembly lines.
2. The production batch size does not seem to have any clear impact on production downtime of the assembly lines when kitting is used. With line stocking, on the other hand, production downtime increases when the batch size decreases and model changes become more frequent.
3. The use of dedicated or shared storage locations in the assembly line does not have any significant effect on the production downtime. Similarly, the production batch size does have any significant effect on the relative performance of dedicated or shared storage locations.
Additional research is needed into the effect variability has on the performance of different line feeding methods, the effect the choice of line feeding methods has on WIP-levels and AGV-utilization, and the costs associated with different line feeding methods.}},
author = {{Ersbo, Simon}},
language = {{eng}},
note = {{Student Paper}},
title = {{Assembly Line Feeding Methods and Production Downtime}},
year = {{2020}},
}