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Stopping a roller coaster train

Pendrill, Ann-Marie LU ; Karlsteen, Magnus and Rödjegård, Henrik (2012) In Physics Education 47(6). p.728-735
Abstract
A roller coaster ride comes to an end. Magnets on the train induce eddy currents in the braking fins, giving a smooth rise in braking force as the remaining kinetic energy is absorbed by the brakes and converted to thermal energy. In this paper an IR camera was used to monitor the temperature of the first braking fin, before, during and after the passage of a train. In addition, the resulting acceleration of the train was modelled and compared to accelerometer data for the Kanonen roller coaster in Liseberg. The results are used to model the distribution of temperature increase over the braking fins. Finally, the cooling of the fins after the passage of the train is analysed and compared to the IR data.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
categories
Higher Education
in
Physics Education
volume
47
issue
6
pages
728 - 735
publisher
IOP Publishing
external identifiers
  • scopus:84868005604
ISSN
1361-6552
DOI
10.1088/0031-9120/47/6/728
project
NRCF (National Resource Center for Physics Education)
language
English
LU publication?
yes
id
060f50e9-7136-4f95-998d-828f0bc022d1 (old id 5051203)
alternative location
http://gup.ub.gu.se/records/fulltext/164272.pdf
date added to LUP
2015-02-18 13:20:39
date last changed
2017-01-01 07:29:18
@article{060f50e9-7136-4f95-998d-828f0bc022d1,
  abstract     = {A roller coaster ride comes to an end. Magnets on the train induce eddy currents in the braking fins, giving a smooth rise in braking force as the remaining kinetic energy is absorbed by the brakes and converted to thermal energy. In this paper an IR camera was used to monitor the temperature of the first braking fin, before, during and after the passage of a train. In addition, the resulting acceleration of the train was modelled and compared to accelerometer data for the Kanonen roller coaster in Liseberg. The results are used to model the distribution of temperature increase over the braking fins. Finally, the cooling of the fins after the passage of the train is analysed and compared to the IR data.},
  author       = {Pendrill, Ann-Marie and Karlsteen, Magnus and Rödjegård, Henrik},
  issn         = {1361-6552},
  language     = {eng},
  number       = {6},
  pages        = {728--735},
  publisher    = {IOP Publishing},
  series       = {Physics Education},
  title        = {Stopping a roller coaster train},
  url          = {http://dx.doi.org/10.1088/0031-9120/47/6/728},
  volume       = {47},
  year         = {2012},
}