Accession Number : AD0282809

Title :   THE PROBABILITY OF INTERMITTENT CONTACT OF EXTERNALLY PRESSURIZED GAS BEARINGS EXCITED BY STOCHASTICALLY DEFINED FORCING OF THE BEARING SUPPORTS

Corporate Author : UNION COLL SCHENECTADY N Y

Personal Author(s) : MODREY,JOSEPH

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : Gas bearings, lacking protective boundary films, will be more susceptible (than oil bearings) to damage occasioned by the randomly extreme loadings which vehicles (ships, missiles, aircraft, ground vehicles) encounter in field operations. Since the loadings which a vehicle will sustain during its service life can only be defined in a probabilistic manner the eccentricity of the bearing journal must necessarily be stated in probabilistic language. The analytics necessary to express the reliability of gas bearings in terms of the probability of damage due to the random vibration of bearing supports encountered in a service environment are described. The case of a flexible rotor supported on externally pressurized gas bearings is specifically referred to. Both the linear and non-linear bearing stiffness examples are investigated. (Author)

Descriptors :   *GAS BEARINGS, *JOURNAL BEARINGS, INTEGRAL EQUATIONS, LOADING, MATHEMATICAL ANALYSIS, PRESSURE, PROBABILITY, RELIABILITY, STRESSES, VIBRATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE