Abstract
The present work studies the analysis of a non recessed hole entry conical hybrid/hydrostatic journal bearing adjusted for constant flow valve (CFV) restriction. The paper provides effectiveness between the conical bearings with hole entry operating in hybrid and hydrostatic mode. The Reynolds formulae, for the flow of fluid through the mating surfaces of a conical journal and bearing, are numerically worked out in both the modes considering the finite element analysis (FEA) and the necessary boundary preconditions. Holes in double row are marked on conical bearing circumference to accommodate the CFV restrictors, the angular distance between two holes are 30o apart from the apex. Qualitative features of the conical journal bearing system with hole entry have been elaborated to analyze bearing performance for radial load variation Wr = 0.25-2. Numerical results obtained from the present study indicate that load carrying capacity of conical bearing, operating in hydrostatic mode, is enhanced by the maximum pressure, direct fluid film damping and direct film stiffness coefficients vis-a-vis corresponding hybrid mode. 
Highlights
Frequent use of journal bearing in various machines led to the development of new and advanced journal bearing so as to give enhanced, more accurate and precise performance
They found that the minimum fluid film thickness, fluid film stiffness and bearing flow are quite significant in case of hybrid mode corresponding to the conical bearing in hydrostatic mode
Static performance curve and dynamic performance curve of non-recessed conical journal bearing with hole entry adjusted for constant flow valve in hydrostatic/hybrid modes are found out by soft skill coding in Fortran 77
Summary
Frequent use of journal bearing in various machines led to the development of new and advanced journal bearing so as to give enhanced, more accurate and precise performance. Khakse et al Analytical study of non-recessed conical hole entry hybrid/hydrostatic journal bearing with constant flow valve restrictor. Khakse et al [24] presented a hole entry, hybrid, non-recessed conical journal bearing analysis using capillary restrictor for variable load They concluded that the conical hybrid bearings were indicating better pressure performance for 5o and 10o semi cone bearings. Khakse et al [25] extended their study to investigate the semi cone bearing angle influence on non recess conical bearing system with hole entry adjusted for orifice restriction They found that the minimum fluid film thickness, fluid film stiffness and bearing flow are quite significant in case of hybrid mode corresponding to the conical bearing in hydrostatic mode.
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