... 27 09 2009 14 03 2010 15 06 2010 15 06 2010 damping elastic constants mechanical stability rings (structures) seals (stoppers) shock absorbers Squeeze film fluid inertia grooved oil seal force coefficients SFDs comprise of an annular thin film...

... on stability for high-speed small-bore journal bearings is verified experimentally. flow control lubricating oils lubrication machine bearings mechanical stability journal bearing stability theoretical analysis starved lubrication supply oil quantity oil control mechanism Journal...

...Kyosuke Ono; Masami Yamane 16 06 2009 mechanical stability vibrations (1) Equation 4 should be rewritten as 4 c f = 2 ζ f M k f , c r = 2 ζ r M k r (2) In Table 1, the parameter values should be rewritten as follows: M...

... and their customers. PMR (perpendicular magnetic recording) HDD magnetostriction scratch head-disk interface (HDI) atomic force microscopy disc drives hard discs indentation magnetic force microscopy mechanical stability perpendicular magnetic recording transmission electron microscopy...

..., but the power dissipated due to viscosity is the penalty. If air is used as lubricant, the losses due to viscosity are much lower. A major concern of fluid film bearings is whirl instability. gas bearings O-ring supports stability threshold bushings damping machine bearings mechanical...

...) damping vibrations hydrodynamics rotors mechanical stability foil bearing microturbomachinery orbit simulations stability Oil-lubricated rolling element bearings have been widely used to support the rotors in gas turbines. In microturbomachinery ( < 200 kW...

...-disk interface slider hysteresis molecularly thin liquid lubricant films lubricants disc drives hard discs sliding friction mechanical stability surface roughness design engineering 07 04 2006 10 01 2007 2007 American Society of Mechanical Engineers ...

... are listed in Table 2 . Load capacity, in either axial or radial direction, is more than adequate in common applications. However, m critical is too small for comfort. 04 05 2006 09 01 2007 machine bearings rotors mechanical stability rotation lubrication gas...

... eigenvalues and eigenfunctions rotors mechanical stability linear stability analysis dynamic coefficients tilting-pad Because tilting-pad journal bearings are more stable and efficient than conventional bearings, they have been commonly applied to many rotating machinery applications...

.... 0742-4787 10.1115/1.1398290 , 124 , pp. 281 – 287 . mechanical stability vibrations magnetic heads mechanical contact adhesion springs (mechanical) design hard discs disc drives nanotribology head disk interface slider dynamics unstable bouncing vibration asperity contact...

..., clearance ratio, rotating speed, and bearing load. fluid-film journal bearings optimization clearance configuration stability machine bearings mechanical stability Fourier series design engineering 28 04 2006 14 08 2006 2007 American Society of Mechanical Engineers ...

... machine bearings turbomachinery micromechanical devices finite element analysis rotors mechanical stability Considering that large bearing clearance can be achieved with smaller pad radial stiffness, a selection of lower limit of possible pad stiffness (from Fig. 6 ) is desirable. Small pad...

... supercritical bifurcation instability threshold speed bifurcation map bifurcation rotors liquid films machine bearings mechanical stability 12 10 2005 16 03 2006 2006 American Society of Mechanical Engineers ...

... mechanical stability Navier-Stokes equations numerical analysis 25 02 2004 22 10 2005 The H i j data shows a small degree of nonlinear frequency dependency which cannot be accounted for with the linear model of Eq. 1 . However, this paper shows that for this FPTP bearing...

... on the instability threshold in hydrodynamic journal bearings. 17 08 2005 11 10 2005 rotors machine bearings hydrodynamics mechanical stability Since this discovery was reported, volumes of archival research activities were devoted to the understanding of the dynamic characteristics...

... . Manuscript received by the Tribology Division October 21, 2004; revised manuscript received November 17, 2004. Review conducted by: J. Tichy. 21 October 2004 17 November 2004 13 06 2005 brakes discs (structures) friction mechanical contact elasticity micromechanics mechanical...

... 25 November 2004 13 06 2005 discs (structures) brakes sliding friction mechanical contact impact (mechanical) mechanical stability vibrations finite element analysis Friction Instabilities Contact Dynamic Finite Element Whatever the language or country...

... in this parametric study to characterize the effect of the Hamaker constant, suspension preload and pitch angle on the dynamic stability/instability of the HDI due to intermolecular forces. van der Waals forces machine bearings disc drives hard discs elasticity mechanical stability 24 02 2004...

... disc storage hard discs disc drives intermolecular forces mechanical stability elasticity hysteresis These forces, like gravitational forces, act between all atoms and molecules, even if they are neutral. The attractive forces acting between two neutral molecules postulated by van der...

... frictionally excited TEI, pre-stressed in-plane the solution of the resulting eigenvalue problem is obtained numerically. Some results are discussed and compared to the literature. plates (structures) thermoelasticity mechanical stability friction thermal stresses brakes clutches eigenvalues...