Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency
941984
10/01/1994
- Event
- Content
- Cavitation thresholds of 5W30 and 10W30 oils were measured in laboratory experiments using electrically-driven disks of piezoelectric ceramic as sources of mechanical excitation. The technique allows the mechanical-wave power density at which cavitation begins to be observed and calculated from electrical quantities and the volume of the oil sample being tested. Both cavitation turn-on and turn-off thresholds have been measured as functions of temperature and frequency. The temperatures ranged from 20 to 100°C and the frequencies ranged from 50 kHz to 4 MHz. The experiments have shown these oils can be made to undergo cavitation at surprisingly low thresholds.
- Pages
- 10
- Citation
- Meitzler, A., and Shu, B., "Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency," SAE Technical Paper 941984, 1994, https://doi.org/10.4271/941984.