Influence of Compressibility on the Helical Viscous Compressor

The pressurization-flow characteristic of a helical viscous compressor is basic to the design of precision air bearings and non-contact gas seals which make use of the spiral-grooved surface feature. The method of Compressible Narrow Groove Analysis (CNGA) makes possible mapping of the pressurization-flow characteristic of a helical viscous compressor for a wide range of the compressibility number. In this manner, design features previously established by Quasi-Incompressible Narrow Groove Analysis (QINGA) are examined with respect to the influence of local compressibility.

[1]  T. X. Wu,et al.  Active vibration control of a railway pantograph , 1997 .

[2]  Coda H. T. Pan.  Compressible Narrow Groove Analysis—Part 1: Derivation , 1998 .

[3]  Coda H. T. Pan.  Compressible Narrow Groove Analysis—Part 2: Computation of Pressure Field in a Spherical Device Rotating in Either Direction , 1998 .

[4]  A. Burgdorfer.  The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings , 1959 .

[5]  D. Pantall,et al.  Principles and Applications of Hydrodynamic-Type Gas Bearings: , 1957 .

[6]  M. M. Reddi,et al.  Finite Element Solution of the Steady-State Compressible Lubrication Problem , 1970 .

[7]  Shigeka Yoshimoto,et al.  Pumping Characteristics of a Herringbone-Grooved Journal Bearing Functioning as a Viscous Vacuum Pump , 2000 .

[8]  Shigehisa Fukui,et al.  A Database for Interpolation of Poiseuille Flow Rates for High Knudsen Number Lubrication Problems , 1990 .

[9]  Bernard Tournerie,et al.  Finite element analysis of grooved gas thrust bearings and grooved gas face seals , 1993 .

[10]  T. A. Stolarski,et al.  Numerical prediction of the performance of gas-lubricated spiral groove thrust bearings , 1997 .

[11]  M. M. Reddi.  Finite-Element Solution of the Incompressible Lubrication Problem , 1969 .

[12]  Dudley D. Fuller,et al.  Theory and Practice of Lubrication for Engineers , 1956 .

[13]  C. H. T. Pan,et al.  Design Studies of an Opposed-Hemisphere Gyro Spin-Axis Gas Bearing , 1968 .

[14]  Ronald Hendri Michel van der Stegen.  Numerical modelling of self-acting gas lubricated bearings with experimental verification , 1997 .

[15]  L. Gümbel,et al.  Reibung und Schmierung im Maschinenbau , 1925 .