(2) Find the critical speed (in rpm) of the steel shaft shown below if the diameter...

 

 

Transcribed Image Text:

(2) Find the critical speed (in rpm) of the steel shaft shown below if the diameter is 1.75 -in and E=30x10 psi. There is only loading at pulley D. There is NO load applied at pulley C. Also, assume the weights of the pulleys are negligible. (Beam deflection chart is on D2L) A D 300 lb 0.5 ft 0.5 ft 3 ft. -2 ft 120 lb B (2) Find the critical speed (in rpm) of the steel shaft shown below if the diameter is 1.75 -in and E=30x10 psi. There is only loading at pulley D. There is NO load applied at pulley C. Also, assume the weights of the pulleys are negligible. (Beam deflection chart is on D2L) A D 300 lb 0.5 ft 0.5 ft 3 ft. -2 ft 120 lb B