In bearing characteristic number in a hydrodynamic bearing depends on
Option (A)
It s closer to real life situation
Option (B)
It leads to a safer design
It leads to cost effective design
No other assumption is possible
Correct Option:
Question Solution:
Bearing characteristic number in corporate BCN = (mns/p) where p = (w/Ld)
L = Length of bearing
d = dia of journal
w = axial load
it has combination of such variables which incorporates the variables which are directly in control of designer. Speed, quality of lubricant and bearing pressure (load and dimension)