L. Hörl, and W. Haas. Proceedings of the 15th International Conference on Fluid Sealing, page 49–56. Bury St Edmunds, Mechanical Engineering Publications, (1997)144.
Abstract
With increasing pressure an O-ring nestles into the rectangular groove. When the pressure decreases again, the O-ring returns to its initial pre-compressed shape. Literature mentiones, that this deformation is accompanied by sliding of the O-ring in its groove and, therefore, may lead to leakage and wear. To check the correctness of this assertion the authors set up a test unit, which allows to observe the contact surface of the O-ring through a glass disc while the pressure pulsates. It turned out that there is actually no sliding of the O-ring but a typical mode of internal flexing. The flexing motion was also simulated with a Finite Element Analysis and veryfied in tests by "freezing" pressurized O-rings in epoxy resin. The wear pattern observed on O-rings after a large number of pressure cycles supports the results of the visual inspection. Finally the results are discussed with regard to practical application of O-rings at pulsating pressure.
%0 Conference Paper
%1 Horl.1997
%A Hörl, Lothar
%A Haas, Werner
%B Proceedings of the 15th International Conference on Fluid Sealing
%C Bury St Edmunds
%D 1997
%E Halligan, B.
%I Mechanical Engineering Publications
%K W_Haas L_Hörl from:thomasherzig dichtungstechnik from:brunomueller from:samuelschwamm ima
%P 49–56
%T O-rings at pulsating pressure
%X With increasing pressure an O-ring nestles into the rectangular groove. When the pressure decreases again, the O-ring returns to its initial pre-compressed shape. Literature mentiones, that this deformation is accompanied by sliding of the O-ring in its groove and, therefore, may lead to leakage and wear. To check the correctness of this assertion the authors set up a test unit, which allows to observe the contact surface of the O-ring through a glass disc while the pressure pulsates. It turned out that there is actually no sliding of the O-ring but a typical mode of internal flexing. The flexing motion was also simulated with a Finite Element Analysis and veryfied in tests by "freezing" pressurized O-rings in epoxy resin. The wear pattern observed on O-rings after a large number of pressure cycles supports the results of the visual inspection. Finally the results are discussed with regard to practical application of O-rings at pulsating pressure.
%@ 9781860580918
@inproceedings{Horl.1997,
abstract = {With increasing pressure an O-ring nestles into the rectangular groove. When the pressure decreases again, the O-ring returns to its initial pre-compressed shape. Literature mentiones, that this deformation is accompanied by sliding of the O-ring in its groove and, therefore, may lead to leakage and wear. To check the correctness of this assertion the authors set up a test unit, which allows to observe the contact surface of the O-ring through a glass disc while the pressure pulsates. It turned out that there is actually no sliding of the O-ring but a typical mode of internal flexing. The flexing motion was also simulated with a Finite Element Analysis and veryfied in tests by "freezing" pressurized O-rings in epoxy resin. The wear pattern observed on O-rings after a large number of pressure cycles supports the results of the visual inspection. Finally the results are discussed with regard to practical application of O-rings at pulsating pressure.},
added-at = {2021-03-25T17:56:18.000+0100},
address = {Bury St Edmunds},
author = {Hörl, Lothar and Haas, Werner},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/25a219f17aba2dae5048f13da02d00125/ima-publ},
booktitle = {Proceedings of the 15th International Conference on Fluid Sealing},
editor = {Halligan, B.},
eventdate = {16.-18. September 1997},
eventtitle = {15th Int. Conf. on Fluid Sealing},
interhash = {04250d4999200f891b194816b6b32bcc},
intrahash = {5a219f17aba2dae5048f13da02d00125},
isbn = {9781860580918},
keywords = {W_Haas L_Hörl from:thomasherzig dichtungstechnik from:brunomueller from:samuelschwamm ima},
note = 144,
pages = {49–56},
publisher = {Mechanical Engineering Publications},
series = {BHR Group conference series},
timestamp = {2021-03-25T16:56:18.000+0100},
title = {O-rings at pulsating pressure},
venue = {Maastricht, Netherland},
year = 1997
}
