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Low friction sliding door seal

Johansson, Olof LU and Svensson, Ted (2019) MMKM05 20182
Product Development
Abstract
This is a project in product development made for ASSA ABLOY Entrance Systems which is a manufacturer of sliding doors among other products. The objective of this project is to come up with a solution which offers an improved air sealing capability for a set of sliding doors all while the friction remains either the same or lower compared to before. The development process began with collecting information of already existing products and solutions internally within ASSA ABLOY as well all externally. The sealing used today is made of two types of brushes and a couple of polymer profiles. The polymer profiles seal off the area between the door leaves when they’re closed while the brushes act on all other areas.
The specifications for the... (More)
This is a project in product development made for ASSA ABLOY Entrance Systems which is a manufacturer of sliding doors among other products. The objective of this project is to come up with a solution which offers an improved air sealing capability for a set of sliding doors all while the friction remains either the same or lower compared to before. The development process began with collecting information of already existing products and solutions internally within ASSA ABLOY as well all externally. The sealing used today is made of two types of brushes and a couple of polymer profiles. The polymer profiles seal off the area between the door leaves when they’re closed while the brushes act on all other areas.
The specifications for the current solution were formed after doing a background research combined with data obtained from tests done on brushes. These tests along with information gathered from ASSA ABLOY’s database made it easier to know what to focus on when generating and developing the concepts. A number of concepts were brought forth whereof a select few were chosen for further development after doing an initial screening. Groups of concepts, called systems, were then formed out of these which together were pitched against each other in a concept selection matrix. This resulted in two system concepts whereof one was designed so that it could potentially be implemented at once while the other needed a longer time span before implementation. The reason being the different complexity grade for the two of them.
Focus was then shifted from generating to developing concepts and two prototypes of the long-term concept were then built as a part of this process. The first one was very simple because its only purpose was to demonstrate the basic principle of the concept. The second one was called a functional prototype because it was built to give a deeper insight into the results when it was subjected to actual load cases. This gave an understanding of how strong the springs in the final product needed to be. These physical prototypes were supplemented by a CAD-model of the entire construction along with an animation and strength calculations for the most critical component.
Trelleborg AB brought forward a design proposal for the short-term concept while the long-term concept was developed simultaneously by the group.
The result of this project was a short-term and a long-term solution for an improved airtightness all while the friction isn't worsened. (Less)
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author
Johansson, Olof LU and Svensson, Ted
supervisor
organization
course
MMKM05 20182
year
type
H2 - Master's Degree (Two Years)
subject
keywords
ASSA ABLOY, sliding doors, air-tight, sealing, low friction.
language
English
id
8972807
date added to LUP
2019-03-13 08:59:40
date last changed
2019-03-13 08:59:40
@misc{8972807,
  abstract     = {This is a project in product development made for ASSA ABLOY Entrance Systems which is a manufacturer of sliding doors among other products. The objective of this project is to come up with a solution which offers an improved air sealing capability for a set of sliding doors all while the friction remains either the same or lower compared to before. The development process began with collecting information of already existing products and solutions internally within ASSA ABLOY as well all externally. The sealing used today is made of two types of brushes and a couple of polymer profiles. The polymer profiles seal off the area between the door leaves when they’re closed while the brushes act on all other areas.
The specifications for the current solution were formed after doing a background research combined with data obtained from tests done on brushes. These tests along with information gathered from ASSA ABLOY’s database made it easier to know what to focus on when generating and developing the concepts. A number of concepts were brought forth whereof a select few were chosen for further development after doing an initial screening. Groups of concepts, called systems, were then formed out of these which together were pitched against each other in a concept selection matrix. This resulted in two system concepts whereof one was designed so that it could potentially be implemented at once while the other needed a longer time span before implementation. The reason being the different complexity grade for the two of them.
Focus was then shifted from generating to developing concepts and two prototypes of the long-term concept were then built as a part of this process. The first one was very simple because its only purpose was to demonstrate the basic principle of the concept. The second one was called a functional prototype because it was built to give a deeper insight into the results when it was subjected to actual load cases. This gave an understanding of how strong the springs in the final product needed to be. These physical prototypes were supplemented by a CAD-model of the entire construction along with an animation and strength calculations for the most critical component.
Trelleborg AB brought forward a design proposal for the short-term concept while the long-term concept was developed simultaneously by the group.
The result of this project was a short-term and a long-term solution for an improved airtightness all while the friction isn't worsened.},
  author       = {Johansson, Olof and Svensson, Ted},
  keyword      = {ASSA ABLOY,sliding doors,air-tight,sealing,low friction.},
  language     = {eng},
  note         = {Student Paper},
  title        = {Low friction sliding door seal},
  year         = {2019},
}