Cavitation Noise Countermeasure Development Approach in Hydromount

2011-28-0091

10/06/2011

Event
16th Asia Pacific Automotive Engineering Conference
Authors Abstract
Content
Hydromount plays an important role in isolating vibration during idling. To meet ideal NVH criteria, a properly tuned Hydromount is required otherwise there will be abnormal noise due to cavitation effect. Cavitation noise is such a noise which is very difficult to identify in initial vehicle development stage. The effects of cavitation in the Hydromount become increasingly important for noise and performance goals. Cavitation is the formation and collapse of vapor bubbles in a working fluid when local static pressure falls below the vapor pressure of the working fluid. Technique to detect cavitation in Hydromount is presented in this paper. The countermeasure technique concentrates on increasing the fluid flow rate betweens fluid chambers. The results for different design countermeasure performance have been measured and the performance is compared in the vehicle. The results of vehicle level tests show the same trends as bench test results.
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DOI
https://doi.org/10.4271/2011-28-0091
Pages
6
Citation
Hazra, S., and Shital, P., "Cavitation Noise Countermeasure Development Approach in Hydromount," SAE Technical Paper 2011-28-0091, 2011, https://doi.org/10.4271/2011-28-0091.
Additional Details
Publisher
Published
Oct 6, 2011
Product Code
2011-28-0091
Content Type
Technical Paper
Language
English