Question 4 15 Points The large diameter and face of the discs of a multiple disc clutch are 255 mm and 25 mm respectivel

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Question 4 15 Points The Large Diameter And Face Of The Discs Of A Multiple Disc Clutch Are 255 Mm And 25 Mm Respectivel 1 (52.13 KiB) Viewed 59 times

Question 4 15 Points The large diameter and face of the discs of a multiple disc clutch are 255 mm and 25 mm respectively. The helical compression spring used to engage the clutch has 9.5 effective coils of 10 mm diameter steel wire. The outside coil diameter is 80 mm. The free length of the spring is 185 mm, but when in place with the clutch engaged, its length is 130 mm. Assume that there are 10 pairs of contact surface; the motor runs at 1200 rpm; and the coefficient of friction on the contact surface as 0.15. Let the spring modulus of rigidity be 80 GN/m2, determine the power in kW that the clutch can transmit. A 36.6 B 52.4 C) 48.8 D) 24.4