Calibration of an instrument to calibrate accelerometers

The purpose of this research was to calibrate an instrument with which an accelerometer could be calibrated accurately. The instruments used were a piezoelectric shaker and a modified Michelson interferometer together with necessary electronic equipment. This equipment was used to calibrate a Kistler Model 808A accelerometer. Weight was added to the shaker in the second part of this experiment in order to determine its effect on the amplitude and frequency of oscillation of the shaker. Results show that this instrument may be used to calibrate an accelerometer quite accurately. The weight added to the shaker will effect only the amplitude of vibration and not the frequency of oscillation --Abstract, page ii

A study of the dynamic loading of hydrodynamically lubricated journal bearings

The analytical and experimental investigation presented here examined the response of a full journal bearing to a unidirectional dynamic load. Frequency response of the bearing at different eccentricity ratios was investigated. It was concluded that the response of the bearing varies with eccentricity. The experimental data obtained was compared to an analytical model which considered inertial, damping, and elastic characteristics of the lubricant film. An investigation of film pressure revealed that the pressure due to journal center acceleration is smaller than the hydrodynamic and squeeze-film pressures --Abstract, page 1