Erratum: “Scaling Laws for Ultra-Short Hydrostatic Gas Journal Bearings” [Journal of Vibration and Acoustics, 2005, 127(3), pp. 254–261]

Abstract

The exponents of the clearance to radius term (C∕R) in the scaling law for damping ratio ζ in Eqs. 19,20 were inadvertently switched between these two equations. Equations 19,20 should read:Display Formulaζ∝(CR)−3(Δppo)−1∕2(ρoρd)−1∕2ΛReCμL2ρdC3(ΩR) (19) andDisplay Formulaζ∝(LD)2(CR)−1(Δppo)−1∕2(ρoρd)1∕2Λ1∕2ReC−1∕2. (20) This correction also pertains to Table 1, where the second term in the last row, with the damping ratio ζ, should read −1 as shown below.Consistently, the second sentence of the fifth paragraph on p. 259, in the section “Design Implications,” should read: “Since the damping ratio ζ scales with (L∕D)2, (C∕R)−1, and …”.