(a) Show by dimensional analysis of the variables that govern the friction in a journal bearing (friction force F f , oil viscosity p, bearing diameter D b , length L b , mean clearance I;, shaft...

(a) Show by dimensional analysis of the variables that govern the friction in a journal bearing (friction force F_f, oil viscosity p, bearing diameter D_b, length L_b, mean clearance I;, shaft rotational speed N) that

What additional physical assumptions are then required to obtain an equation of the form of (13.20)?

(b) Under what conditions can Eq. (13.23), an empirically developed relation for engine bearing fmep, be obtained from Eq. (13.20)?