Advanced Calculation Method of the Contact Stress in Roller Follower Valve Train Systems 2002-01-0852
The calculation of the contact stress between cam and cam follower is an important step in the valve train design process. Unacceptably high contact stresses result in excessive wear at the running surfaces.
The established analytical methods for calculation of contact stress are limited by assumptions. The Finite Element Analysis (FEA) offers an advanced tool with fewer limitations than the analytical equations. This paper compares these two calculation methods.
In a first step, the FEA is used to confirm the analytically calculated results with the standard Hertz equations. Then some special cases, which cannot be calculated by the standard equations, are investigated by FEA, like the limited width of one contact partner, or a non-circular roller profile.
Citation: Krepulat, W., Dusik, M., and Korte, V., "Advanced Calculation Method of the Contact Stress in Roller Follower Valve Train Systems," SAE Technical Paper 2002-01-0852, 2002, https://doi.org/10.4271/2002-01-0852. Download Citation
Author(s):
Walter Krepulat, Marius Dusik, Volker Korte
Affiliated:
MAHLE Ventiltrieb GmbH
Pages: 11
Event:
SAE 2002 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
New Developments in Engine Component Technology-SP-1700, SAE 2002 Transactions Journal of Engines-V111-3
Related Topics:
Valve trains
Finite element analysis
Design processes
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