Valve train calculation model with regard to oil film effects
Book
·
OSTI ID:5761722
A mathematical equivalent model to describe the dynamic behaviour of mechanical actuated valve trains has been developed which is based on a multidegrees-of-freedom vibratory system. It could be shown that dampings and stiffnesses efficient in a valve train are influenced by three oil film effects: these are squeeze films between the valve train components, elastohydrodynamic lubrication of cam and follower and the cam shaft bearings. Thus, the effective values for dampings and stiffnesses within the equivalent model are calculated with regard to these different kinds of oil film effects. The accuracy of the model is demonstrated by a comparison to measured forces and accelerations which were taken up on a pushrod-actuated valve train.
- OSTI ID:
- 5761722
- Report Number(s):
- TP-850399
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACCELERATION
ACCURACY
BEARINGS
CALCULATION METHODS
COMPARATIVE EVALUATIONS
CONTROL EQUIPMENT
DAMPING
ELASTICITY
ENGINES
EQUIPMENT
FILMS
FLOW REGULATORS
FLUID MECHANICS
HEAT ENGINES
HYDRODYNAMICS
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICAL VIBRATIONS
MECHANICS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
TENSILE PROPERTIES
VALVES
330100* -- Internal Combustion Engines
ACCELERATION
ACCURACY
BEARINGS
CALCULATION METHODS
COMPARATIVE EVALUATIONS
CONTROL EQUIPMENT
DAMPING
ELASTICITY
ENGINES
EQUIPMENT
FILMS
FLOW REGULATORS
FLUID MECHANICS
HEAT ENGINES
HYDRODYNAMICS
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICAL VIBRATIONS
MECHANICS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
TENSILE PROPERTIES
VALVES