Abstract: A theory of kinematic stabilization of rolling cylinders is developed for high-speed cylindrical roller bearings. This stabilization requires race and roller crowning to produce changes in the ...

Abstract: The vibration in a cam driven mechanism due to drive system windup can be a serious problem at high speeds. A single degree of freedom model of this source of vibration shows that it is ...

Abstract: The design of four-bar crank mechanisms to have prescribed maximum and minimum angular velocity ratios is treated. The mechanisms are optimized by minimizing their maximum pressure angles. Two ...

Abstract: This paper describes the compressor research program conducted at the NACA Langley Laboratory and highlights the significant developments obtained prior to the discontinuance of this program in ...

Abstract: A study was completed to compare flow parameters over a standard ogee-crested spillway using a physical model, numerical model, and existing literature. The physical model was constructed of Plexiglas and placed in a test ...

Abstract: Data obtained from two physical models were compared to the results obtained from numerical model investigations of two ogee-crested spillways. In 2001, Savage and Johnson investigated ogee-crested spillways without the ...

Abstract: A reliability model is presented for planetary gear trains in which the ring gear is fixed, the sun gear is the input, and the planet arm is the output. The input and output shafts are ...

Abstract: A reliability model is presented for bevel gear reductions with either a single input pinion or dual input pinions of equal size. The dual pinions may or may not have the same power applied ...

Abstract: Planetary-gear transmissions are compact speed reductions which use parallel-load paths to transmit high power. The range of possible reduction ratios is bounded from below and above by limits ...