Check Shigley$$s Mechanical Engineering Design $10$th edition textbook chapter $12$ for the tables Q$-1$ A journal bearing has a shaft diameter of $75\mathrm{.}00$ mm with a unilateral tolerance of $-0\mathrm{.}02$ mm $.$ The bushing bore has a diameter of $75\mathrm{.}10$ mm with a unilateral tolerance of $0\mathrm{.}06$ mm $.$ The bushing is $75\mathrm{.}0$ mm long and supports a radial load of $6\mathrm{.}0$ kN $.$ The journal speed is $\backslash (900\backslash$mathrm$\{$rev$\}/\backslash$mathrm$\{$min$\}\backslash ).$ For the minimum clearance assembly and for an inlet film temperature of $\backslash (45^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ),$ and making use of Raymondi and Boyd charts, evaluate the performance of the bearing, i$.$e$.,$

a$)$ Determine the minimum film thickness, $\backslash ($ h$\_\{0\}\backslash ),$ the heat loss rate, $\backslash ($ H$\_\{$f$\}\backslash ),$ and the maximum lubricant pressure, temperature rise, $\backslash (\backslash$Delta T$\_\{$c$\}\backslash ),$ average oil temperature, $\backslash (\backslash$mathrm$\{$T$\}\_\{\backslash$text $\{$ave $\}\}\backslash ),$ and the maximum lubricant temperature, $\backslash ($ T$\_\{\backslash$max $\}\backslash ),$ the maximum film pressure, $\backslash (\backslash$mathrm$\{$P$\}\_\{\backslash$max $\}\backslash ),$ and side flow, $\backslash ($ Q$\_\{\backslash$mathrm$\{$s$\}\}\backslash ),$ for the case when SAE$20$ oil is used as a lubricant;

$[24$ pts$.]$

b$)$ Repeat the solution for a pressure$-$fed bearing having the same I and d dimensions, and with a central groove of$,\backslash (\backslash$mathrm$\{$w$\}=5\backslash$mathrm$\{$~mm$\}\backslash ),$ a supply pressure of$,\backslash (\backslash$mathrm$\{$Ps$\}=270\backslash$mathrm$\{$kPa$\}\backslash ),$ and with other things being equal.

$[24$ pts$.]$

c$)$ Compare and evaluate both of these results found in parts $($a$)$ and $($b$)$ above. based on Trumpler's criteria

d$)$ Present your results in a Table with their correct units.

e$)$ Repeat case $($a$)$ analyzing the given bearing for minimum friction,

f$)$ Repeat case $($a$)$ analyzing the given bearing for maximum load capacity, $[15$ pts$.]$