Frictional heating of elliptic contacts

J. Bos; H. Moes

doi:10.1016/S0167-8922(08)70334-1

Frictional heating of elliptic contacts

J. Bos, H. Moes

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic

10 Citations (Scopus)

Abstract

Wherever friction occurs mechanical energy is transformed into heat. The maximum surface temperature associated with this heat generation can have an important influence on the tribological behaviour of the mating components. For band contacts and circular contacts this temperature has already been studied extensively. However for elliptic contacts only approximate solutions exist.

In this work a fast numerical algorithm is presented to calculate the steady state solution for the flash temperature for elliptic contacts with arbitrary entrainment angle. The heat generation may be due to either a uniform or a semi-ellipsoidal shaped heat source distribution, more or less representing EHL conditions and dry or boundary lubrication conditions, respectively. The asymptotic solutions for large and small Peclet numbers and numerical solutions will be presented. Function fits for the flash temperature will be proposed that are more reliable than the function fits in current use, even for circular contacts. Aspect ratios of the contact ellipse in the range of 0.20 - 5.0 are covered. Within this range the fits were found to be accurate within 5%.

Original language	English
Title of host publication	Dissipative processes in Tribology
Subtitle of host publication	Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993
Editors	D. Dowson, C.M. Taylor, T.H.C. Childs, M. Godett, G. Dalmaz
Place of Publication	Amsterdam
Publisher	Elsevier
Pages	491-500
ISBN (Print)	0-444-81764-6
DOIs	https://doi.org/10.1016/S0167-8922(08)70334-1
Publication status	Published - 1994
Event	20th Leeds-Lyon Symposium on Tribology 1993 - Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, Villeurbanne, France Duration: 7 Sept 1993 → 10 Sept 1993 Conference number: 20

Publication series

Name	Tribology Series
Publisher	Elsevier
Volume	27

Conference

Conference	20th Leeds-Lyon Symposium on Tribology 1993
Country/Territory	France
City	Villeurbanne
Period	7/09/93 → 10/09/93

Access to Document

10.1016/S0167-8922(08)70334-1

Cite this

Bos, J., & Moes, H. (1994). Frictional heating of elliptic contacts. In D. Dowson, C. M. Taylor, T. H. C. Childs, M. Godett, & G. Dalmaz (Eds.), Dissipative processes in Tribology: Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993 (pp. 491-500). (Tribology Series; Vol. 27). Elsevier. https://doi.org/10.1016/S0167-8922(08)70334-1

Bos, J. ; Moes, H. / Frictional heating of elliptic contacts. Dissipative processes in Tribology: Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993. editor / D. Dowson ; C.M. Taylor ; T.H.C. Childs ; M. Godett ; G. Dalmaz. Amsterdam : Elsevier, 1994. pp. 491-500 (Tribology Series).

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title = "Frictional heating of elliptic contacts",

abstract = "Wherever friction occurs mechanical energy is transformed into heat. The maximum surface temperature associated with this heat generation can have an important influence on the tribological behaviour of the mating components. For band contacts and circular contacts this temperature has already been studied extensively. However for elliptic contacts only approximate solutions exist.In this work a fast numerical algorithm is presented to calculate the steady state solution for the flash temperature for elliptic contacts with arbitrary entrainment angle. The heat generation may be due to either a uniform or a semi-ellipsoidal shaped heat source distribution, more or less representing EHL conditions and dry or boundary lubrication conditions, respectively. The asymptotic solutions for large and small Peclet numbers and numerical solutions will be presented. Function fits for the flash temperature will be proposed that are more reliable than the function fits in current use, even for circular contacts. Aspect ratios of the contact ellipse in the range of 0.20 - 5.0 are covered. Within this range the fits were found to be accurate within 5%.",

author = "J. Bos and H. Moes",

year = "1994",

doi = "10.1016/S0167-8922(08)70334-1",

language = "English",

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pages = "491--500",

editor = "D. Dowson and C.M. Taylor and T.H.C. Childs and M. Godett and G. Dalmaz",

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Bos, J & Moes, H 1994, Frictional heating of elliptic contacts. in D Dowson, CM Taylor, THC Childs, M Godett & G Dalmaz (eds), Dissipative processes in Tribology: Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993. Tribology Series, vol. 27, Elsevier, Amsterdam, pp. 491-500, 20th Leeds-Lyon Symposium on Tribology 1993, Villeurbanne, France, 7/09/93. https://doi.org/10.1016/S0167-8922(08)70334-1

Frictional heating of elliptic contacts. / Bos, J.; Moes, H.
Dissipative processes in Tribology: Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993. ed. / D. Dowson; C.M. Taylor; T.H.C. Childs; M. Godett; G. Dalmaz. Amsterdam: Elsevier, 1994. p. 491-500 (Tribology Series; Vol. 27).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic

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AU - Moes, H.

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N2 - Wherever friction occurs mechanical energy is transformed into heat. The maximum surface temperature associated with this heat generation can have an important influence on the tribological behaviour of the mating components. For band contacts and circular contacts this temperature has already been studied extensively. However for elliptic contacts only approximate solutions exist.In this work a fast numerical algorithm is presented to calculate the steady state solution for the flash temperature for elliptic contacts with arbitrary entrainment angle. The heat generation may be due to either a uniform or a semi-ellipsoidal shaped heat source distribution, more or less representing EHL conditions and dry or boundary lubrication conditions, respectively. The asymptotic solutions for large and small Peclet numbers and numerical solutions will be presented. Function fits for the flash temperature will be proposed that are more reliable than the function fits in current use, even for circular contacts. Aspect ratios of the contact ellipse in the range of 0.20 - 5.0 are covered. Within this range the fits were found to be accurate within 5%.

AB - Wherever friction occurs mechanical energy is transformed into heat. The maximum surface temperature associated with this heat generation can have an important influence on the tribological behaviour of the mating components. For band contacts and circular contacts this temperature has already been studied extensively. However for elliptic contacts only approximate solutions exist.In this work a fast numerical algorithm is presented to calculate the steady state solution for the flash temperature for elliptic contacts with arbitrary entrainment angle. The heat generation may be due to either a uniform or a semi-ellipsoidal shaped heat source distribution, more or less representing EHL conditions and dry or boundary lubrication conditions, respectively. The asymptotic solutions for large and small Peclet numbers and numerical solutions will be presented. Function fits for the flash temperature will be proposed that are more reliable than the function fits in current use, even for circular contacts. Aspect ratios of the contact ellipse in the range of 0.20 - 5.0 are covered. Within this range the fits were found to be accurate within 5%.

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DO - 10.1016/S0167-8922(08)70334-1

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Bos J, Moes H. Frictional heating of elliptic contacts. In Dowson D, Taylor CM, Childs THC, Godett M, Dalmaz G, editors, Dissipative processes in Tribology: Proceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993. Amsterdam: Elsevier. 1994. p. 491-500. (Tribology Series). doi: 10.1016/S0167-8922(08)70334-1

Frictional heating of elliptic contacts

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