Abstract: A stability criterion is presented to evaluate instability phenomena in mechanical systems containing externally pressurized gas bearings. For this criterion, the gas bearing films and the supporting ...

Abstract: The dynamic behavior of externally pressurized gas bearings is described by means of frequency response functions, from which dynamic stiffness and damping coefficients are derived. A numerical ...

Abstract: A feedback loop model is presented us to study instability phenomena in externally pressurized gas bearings. The main features in the theoretical analysis are the compressibility of the fluid ...

Abstract: The NEMO (Naval Experimental Manned Observatory) is the first transparent-hull submersible capable of operation to depths as great as 600 ft. Subsystems such as pressure hull, life support, ...

Abstract: This study was initiated to: (1) perform an analytical structural analysis on an acrylic pressure hull, (2) compare the analytical results with all available experimental results, and (3) present ...

Abstract: In this paper a dynamic model of a flexible robot is built out of a finite element model of each of its links. The number of degrees-of-freedom of these models is strongly reduced by ...