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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(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

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

Hi pls help me with the solutio. Of this problem exercise. The answer is already attached in bold. your will would be much appreciated

Q2: The gear of epicyclic involve a planet wheel which have 28 teeth, sun wheel which has 24 teeth, and an internal toothed annulus which is held stationary. Neglecting friction, if the sun wheel rotates at 700 rev/min, determine the torque required to hold the annulus at rest when 9 kW is being transmitted. What is the diameter of the circle traced out by the centers of the planet wheels, if the teeth have a module of 4.

3. A flat annular steel flywheel of outer radius 0.5 m and inner radius 0.125 m with p = 7800 kN*s?/m* and v = 0.3 is to be shrunk fit around a solid steel shaft. The shrinking allowance is 0.1 mm. Both materials are the same type of steel with E = 210 GPa. Determine the RPM when the shrink fit loosens as a result of rotation.