The electric motor keeps the aluminum shaft ABCD, with rigidity modulus 27 GPa, operating at a constant speed when torques TB=240 N.m and Tc=390 N.m are respectively exerted at B and C. If the diameter of the shafts are given as dAB= 40 mm, dBc = 50 mm, and dcp=50 mm, determine (a) Angle of twist of A relative to B (b) Angle of twist of C relative to B (c) Angle of twist of C relative to D The magnitude of the internal reaction torque between A and B is The magnitude of the internal reaction torque between B and C is The magnitude of the internal reaction torque between C and D is (N.m) (N.m) (N.m)

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please help solve

The motor A delivers 3000 hp to the shaft at 1500 rev/min, of which 1000 hp is removed by gear B and 2000 hp is removed by gear C.a)Determine the maximum shear stress in the shaft in ksi.b)Determine the angle of twist in degrees of end D relative to end A. Use G = 12 x 106 psi for steel, and assume that friction at bearing D is negligible.

(a) (b) 200 mm (c) A 600 mm B 200 mm с Fig. 3 Fig. 3 shows the layout of a shaft that rotates 500 rev/min and is supported by bearings at O and C. The shaft is carrying two gears at point A and B, in which the pitch diameter of Gears A and B are 500 mm and 250 mm, respectively. The force, PA applied at Gear A is 3.5 kN. The rotating shaft is made from AISI 1030 steel, and the factor of safety is 3. PB PA= 3.5 kN List down 2 assumptions needed in designing the shaft in Fig. 3. Design the minimum allowable diameter for the shaft at its critical location. The bearings at points O and C are required to have a desired life of 25kh at a speed of 500 rev/min. Based on these conditions, select the appropriate bearings for this

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In a broaching machine shown, shaft A carries a pulley 60.96 cm in diameter which is driven by a leather flat belt from 12-inch pulley on the 30 Hp-squirrel-cage, compensator-motor shaft overhead, the latter turning 1200 rpm. Gears 2 & 4 have 12 teeth each, and 3 & 5 have 60 teeth each. Gear 5 is fast to 6, which has 10 teeth and a module of 8.465 mm/tooth and which engages with rack 7 to which is attached the broach. Assuming that there is no slipping between the pulleys and the belt. Determine: a) the speed with which the broach is drawn through the work, in m/s. b) Specify a double ply, medium weight, cemented joint leather flat belt, considering a mildly jerking loads and a center distance of 60 inches. c) Determine the belt tensions of the belt and the F, maximum stress in the straight part of F₁ ALBA belt if = 3 F₂ Gear 5 Gear 6 Gear 2 DEO CEC A HH₂ Rack 030-0=0 Gear 4 Gear 3

The input shaft for the gear train shown rotates at 4500 rpm. Compute the train value and the rotational speed of the output shaft ,knowing that the Number of teeth: NA = 17 , NB = 50 , Nc = 20 , Np = 48 , Ne = 14 , NF = 62 B Input shaft D Output shaft E 3 ! F 4. а. TV = 22.0451 O b. n output = 143.95 rpm O c. noutput = 155.45 rpm O d. TV=31.2605 Ое. TV = 31.2605 f. TV = 36.149 g. n output = 241.88 rpm O h. n output = 123.65 rpm

1. The endurance limit for rotating shaft, if its ultimate strength Su=1600 Mpa is:

Spur gear train is used to transmit the power of 2kW from input gear A rotating at 120 rpm to output gear D through a compound gear BC. The number of teeth on the gear A, B, C and D are 16, 32, 12 and 18 respectively. Given: Module = 4mm, pressure angle=20° The tangential force acting on the gear B is N A D В