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 in16 inGear C10-in D.20°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

Section: Chapter Questions

Problem 1.1MA

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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 FA 20° 16 in Gear C 10-in D. 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.
given that the specific weight of the spring material is 56.6 kN/m3, find the lowest critical frequency of the spring. Express your answer in rpm,
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 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
3. Figure 4 shows a simplified schematic of the drive system of joint 4 of the PUMA 560. The torsional stiffness of the couplings is 200 Nt-m/radian each, that of the shaft is 400 Nt-m/radian, and each of the reduction gear pairs has been measured to have output stiffness of 2000 Nt-m/radian with its input gears fixed. Both the first and second reductions have n=4. Assuming the structure and bearing are perfectly rigid, a) What is the effective stiffness of gear 1 if the electric motor's shaft is locked? b) What is the effective stiffness of gear 3 if the electric motor's shaft is locked? c) What is the stiffness of the joint (i.e., when the motor's shaft is locked)? In other words, find out the effective stiffness of the output gear 4. - Electric motor -#1 Coupling Connecting rod #2 Coupling -#1 Gear 42 Gear #3 Gear - #4 Gear Figure 4: Simplified version of the driven train of joint 4 of PUMA 560.
A 50 mm transmission shaft transmitting 15 kW power at 200 rpm is supported on two deep grove ball bearings 750 mm apart and two gears are key to it. The pinion and gear have 30 and 100 teeth respectively. The pinion is located at 100 mm to the left of the right bearing, whereas the gear is located at 150 mm to the right of the left bearing The module and pressure angle of gear is 5 and 20o involute. Pinion delivers power horizontally to the right and gear received power in a vertical direction from below as shown in Figure l. The expected life of 15,00 h assumes the torque is the same for both pinion and gear and the bearings are under radial load only. Find the pitch diameters of pinion and gear. The torque transmits by the shaft Find force FC and FD Select suitable deep groove ball bearings at A and B B 150 500 100 Fe N-
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.
Use the general shaft layout given and determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding. Check the slopes at the bearings for satisfaction of the recommended limits in Table 7-2. Assume that the deflections for the pulleys are not likely to be critical. 500 lbf 75 lbf 8-in dia. Bearing at O 500 lb d 10.0" 75 lb Material 1040 Q and T 18 in Use the following shaft layout assuming a pulley transmits torque through a key and keyseat at location A to another pulley at location B. Assume the tensions in the belt at pulley B are T₁ and T2, where T₁ is 15% of T2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 10-in dia. 12 in T₂ T₁ The mean torque is 0 lb-in. The alternating torque is 2125 lb-in. The mean moment is 0 lb-in. The alternating moment is 5000 lb-in. 18.0" pulley diameter = 8.0" Sut 113 kpsi 10.0 B T2 T1 pulley diameter = 10.0" Sy 86 kpsi 12.0"…
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Draw free-body diagrams of the two gears, assuming an input couple M on theOUT X shaft of the larger gear in the direction shown. Include forces at bearings A, B, D and E. M isthe reaction couple at the output shaft - i.e. the resistance to turning of the object being driven.The gears have 48 and 24 teeth respectively. If the input gear (large gear) turns at 100 rpm(= revolutions per minute), the output speed (small gear) is _______rpm.Wil OUT X IN Xl M be larger or smaller than M ?
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.

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