Q5: The gear forces shown act in planesparallel to the yz plane. The force on gear Ais 300 lbf. Consider the bearings at O and Bto be simple supports. For a static analysisand a factor of safety of 3.5, use distortionenergy to determine the minimum safediameter of the shaft. Consider the materialto have a yield strength of 60 kpsi.Gear A24-in D.20 inFA20°16 inGear C10-in D.10 inFc20°

Answered: Q5: The gear forces shown act in planes…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Q5:The gear forces shown act in planes parallel to the yz plane. The force on gear A is 300 lbf. Consider the bearings at O and B to be simple supports. For a static analysis and a factor of safety of 3.5, use distortion energy to determine the minimum safe diameter of the shaft. Consider the material to have a yield strength of 60 kpsi. Gear A 24-in D. 20 in 16 in Gear C 10-in D. 20° 10 in Fc 20°
19 The figure shows a countershaft carrvino two V-helt pulleys and mounted in bearings at O and C. Fulley A receives power from a motor through a belt wwith the belt tension shown. The power is transmitted through the shaft and delivered to the belt on pullev B. Assume the belt tension on the c) For static analysis using a design factor ng = 2.8, use distortion energy theory to determine the loose side at B is 15 percent of the tension on the right side. The shaft is to be made of AISI 1035 CD steel. a) Determine the tensions in the belt on pulley B, b) Find the reaction forces, minimum safe diameter of the shaft at point A. 250 mo 450 mm 300 mm 2 kN 0.3 kN 200-mm dia. find dia. 250-mm dia.
The picture shows the rear swivel axle bearing design of a 4-wheel wagon. It is known that the speed of the wagon wheels is n = 37 rpm. The total radial load carried by the wagon is given as Fr= 16060 Newtons. In addition, due to road conditions, Fa axial load is applied to the wagon. If the axial load on the A bearing is 10% of the radial (vertical) load on this bearing, calculate the dynamic load number (C) of the bearing in the A bearing in Newtons for 18616 hours of life. fo*Fa/Co = 0.345 Pi=3.14
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A steel shaft of 2.5 inch diameter rotates at 500 rev/min and transmits 120 hp through a gear. Select an appropriate square key for the gear, while the key material having yield strength of 60 kpsi. Assume a factor of safety of 2.0.. Draw sketch and show all calculations.
A single disc clutch with both sides effective is required for a vehicle. The power for initial estimation of the clutch is 100 kW at 4000 rpm. Determine the radial dimensions (inner and outer radius) and the actuating force (W). Base the design on the uniform wear assumption. Assume maximum pressure (pmax) as 1.6 MN/m2 and ?2?1= 1√2where ‘r2’ and ‘r1’ represent inner and outer radius of the friction surface. Take µ = 0.35. Find also the minimum pressure (pmin).
. The mean diameter of the driving pulley for a vec-belt drive with two belts is 110 mm. The pulley groove angle is 40° and the drive transmits 4.4 kW at a speed of rotation of 1500 rev/min. The coefficient of frietion between belt and pulley 0.32, and the angle of lap is 160°. Determine the driving torque and the maximum stress in the belt material if the cross-sectional area of each belt is 120 mm.
A stone crusher machine working 8 hours a day is driven by an electric motor with a narrow-V belt-pulley mechanism. The transmitted power is P = 18.5 kW, the speed of the motor is n1 = 1450 RPM, and the required rotational speed for the stone machine is n2 = 690D / d. Sizing of the narrow-V belt-pulley mechanism is required according to the given. Recommended value for the axle spacing a = k. (dw1 + dw2) k = 0.9
There are two pairs of closed soft tooth surface spur gears A and B,Parameters of A: modulus m = 2mm, number of teeth Z1 = 40, Z2 = 90 , width of teeth b = 60mm.Parameters of B : modulus m = 4mm, number of teeth Z1 = 20, Z2 = 45 , width of teeth b = 60mm.The accuracy of the two pairs of gears is grade8, and other conditions are the same. Try to compare the contact fatigue strength and bending fatigue strength of the two pairs of gears? And explain the reason.
The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of AISI 1035 CD steel. Using distortion-energy theory with a design factor of 2, determine the minimum shaft diameter to avoid yielding.
h Thoist, hoist 1₁ m mg G=5 Gear box Pshaft Ishaft, Pshaft Electrical machine 400 V 50 Hz Tower crane, which is driven by an electrical motor hoists a certain mass load on the height of 60 m. Electric motor produces 15000 W shaft power to lift this load and it is connected to the load via an ideal reduction (decreases speed) gear box with G = 5 gear coefficient, the radius of the hoist gear is ₁ = 0.2 m. Find, how long does it take to lift the load and the mass of the load. Electrical machine is supplied with 50 Hz, and it has 3 pole pair. Assume that motor accelerates instantaneously and there is no rotor inertia. Time, spent on lifting: Mass of the load:
The induced nominal stress in a machine member is 28 N/mm? and the value of maximum stress near the irregularities is 61N/mm?, the value of stress concentration factor is SCF, K = Bearings are designated by a standard number internationally, the first digit in the bearing number 6409 represents type of the bearing. Select one: O True O False The value of curvature correction factor k; will be . if the spring index is 6. O a. 1.33 O b. 1.08 O c.0.,92 O d. 4.00 The figure below shows the components of normal forces, the value of radial force on the gear wheel due to a tangential force of 642 N is . N, Take pressure angle as 1420. Pitch point P. Gear driven 02 The radial force is

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