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Experimental Identification of the Behavior of Glass Fiber Bushing

Nilsson, Björn (2000) In MSc Theses
Department of Automatic Control
Abstract
Two different techniques exist for glass fiber production, direct melt bushing and marble bushing. The purpose of the project was to study the glass fiber production process and investigate the possibilty of constructing mathematical models from experimental data. This part also included implementation of a DAQ system to obtain the expeimental data. A second objective was to construct an efficent temperature control for a producion unit for glass fiber production. The approach taken is to measure the electrical power supplied to the bushing and the glas temperature.
From the I/O data a model in the form of a high-order transfer function for the process would be
identified. With the model a controller which would minimize process... (More)
Two different techniques exist for glass fiber production, direct melt bushing and marble bushing. The purpose of the project was to study the glass fiber production process and investigate the possibilty of constructing mathematical models from experimental data. This part also included implementation of a DAQ system to obtain the expeimental data. A second objective was to construct an efficent temperature control for a producion unit for glass fiber production. The approach taken is to measure the electrical power supplied to the bushing and the glas temperature.
From the I/O data a model in the form of a high-order transfer function for the process would be
identified. With the model a controller which would minimize process variations would be constructed. The experiments shows that there is a large difference between the two techniques in terms of process disturbances. For the marble melt bushing only approximate models could be constructed. For the direct melt bushing the process disturbances was less important and models with small variances could be constructed.
The approach taken would yeild stable, robust controller. However better control could propably be achieved if some measurable process disturbances like the glass temperature at the entry is incorperated. Another approach would be to use an adaptive controller. This approach would be best suited for the direct melt bushing with it's slowly varying process dynamics (Less)
Please use this url to cite or link to this publication:
author
Nilsson, Björn
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5651
ISSN
0280-5316
language
English
id
8848376
date added to LUP
2016-03-20 18:09:20
date last changed
2016-03-20 18:09:20
@misc{8848376,
  abstract     = {{Two different techniques exist for glass fiber production, direct melt bushing and marble bushing. The purpose of the project was to study the glass fiber production process and investigate the possibilty of constructing mathematical models from experimental data. This part also included implementation of a DAQ system to obtain the expeimental data. A second objective was to construct an efficent temperature control for a producion unit for glass fiber production. The approach taken is to measure the electrical power supplied to the bushing and the glas temperature.
From the I/O data a model in the form of a high-order transfer function for the process would be
identified. With the model a controller which would minimize process variations would be constructed. The experiments shows that there is a large difference between the two techniques in terms of process disturbances. For the marble melt bushing only approximate models could be constructed. For the direct melt bushing the process disturbances was less important and models with small variances could be constructed.
The approach taken would yeild stable, robust controller. However better control could propably be achieved if some measurable process disturbances like the glass temperature at the entry is incorperated. Another approach would be to use an adaptive controller. This approach would be best suited for the direct melt bushing with it's slowly varying process dynamics}},
  author       = {{Nilsson, Björn}},
  issn         = {{0280-5316}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{MSc Theses}},
  title        = {{Experimental Identification of the Behavior of Glass Fiber Bushing}},
  year         = {{2000}},
}