Interactive Graphic Simulation of Rolling Element Bearings. Phase I. Low Frequency Phenomenon and RAPIDREB Development.
Abstract
A selective suppression of the very high frequency content of the generalized motion simulated by the original DREB computer program has led to considerable increase in the maximum permissible time step size and hence performance simulations over relatively large time domains (several shaft revolutions) have been economically possible with the updated version RAPIDREB. Capabilities of RAPIDREB are demonstrated for both light load, low speed DMA (Despun Mechanical Assembly) ball bearings and the heavy load, high speed engine type ball bearings. From the simulations obtained over a shaft revolution it is shown that the race guided cage in the DMA bearings is generally stable while the ball guided cage produces relatively noisy and to some extent unstable cage motion. The high speed engine bearing performance is simulated over more than seven shaft revolutions. The steady whirl and continued contact of the cage with the guiding race is simulated under a combined thrust and radial load applied on the bearing. Thus conditions of excessive cage wear and eventual failure are simulated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1981
- Accession Number
- ADA112009
Entities
People
- Pradeep K. Gupta