Question

(A) a flanged coupling having six bolts placed at pitch circle diameter of 180 mm connects two lengths of steel shafting of same diameter the shaft is required to transmit 80 kw at 240 riv/min assuming allowable intensities of shearing stresses in the shaft an bolts are 75 mn/m2 and 55 mn/m2 respectively and the maximum torque is 1.4 times the mean torque find
the diameter of the shaft
the diameter of bolts

Answer 1

N) 80 x 10²x60 2 T1 x 240 3192, cqq nm 2 4456-34 z lxdix55x18 6x 180x103 Given Power Pe 80 kw Speed 2 240 rpm Mean tanque Timeon Manimum, Email Torque 1.4% 3182,098 Tmoje 4456.34 o-m Marinam kargue (Tmand x Tg 16 4 456.34 TIX d? x 75x100 16 d Diameter of the Shaft de 67.13 mm Mamman torque transmitted (T) TY 4 4 TT 13 3 3,026% 10 4 Elt sxemala do O, 013 92m diameter of bells di 13.82mm