QUESTION SEVEN

a$)$ Design a hydrostatic thrust bearing for a telecommunications radar carrying a $600$ kN load and rotating at $\backslash (900\backslash$mathrm$\{$revs$\}/\backslash$mathrm$\{$min$\}\backslash ).$ The fluid viscosity is $\backslash (0\mathrm{.}027\backslash$mathrm$\{$~Pa$\}.\backslash$mathrm$\{$s$\}\backslash )$ and the minimum film thickness should not be less than $0\mathrm{.}11$ mm $,$ while the outer and recess diameters are $500$ mm and $420$ mm respectively.

b$)$ With reference to your results, suggest how this bearing can be optimized.

c$)$ What is meant by the synchronous whirl and half$-$speed whirl in journal bearings?