10-49. The turbine develops 150 kW of power, which istransmitted to the gears such that C receives 70% and Dreceives 30%. If the rotation of the 100-mm-diameter A-36steel shaft is w - 800 rev/min., determine the absolutemaximum shear stress in the shaft and the angle of twist ofend E of the shaft relative to B. The journal bearing at Eallaws the shaft to turn freely about its axis

Write the formula for power developed in terms of the torque transmitted by the shaft. P=2πωT60…

Answered: 10-49. The turbine develops 150 kW of…

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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The steel shaft DF consists of three concentric tubes and is supported by smooth bearings at D and E. It is coupled to a motor at F, which delivers 15 kW of power to the shaft while it is running at 55 rev/ sec. The gears A, B, and C remove 4 kW, 5 kW, and 6 kW, respectively. The shaft is free to turn in its support bearings D and F. Determine the shearing stress developed in segments BC and CE
the solid steel sheft DF has a diameter of 25 mm and is supported by smooth bearings at D and E. It is coupled to a motor at F. which delivers 12kw of bower to the shift while turning at 50 rev/s if gears A ,B and C remove 3kw,4kw,5kw respectively . determine the maximum shear stress developed in the shift within Regions CF and BC. the shaft is free to turn in its support bearings D and F
The motor A delivers 7500 kW to the shaft at 3600 rev/min, of which 2500 kW is removed by gear B and 5000 kW is removed by gear C. Determine (a) the maximum shear stress in the shaft; and (b) the angle of twist of end D relative to end A. Use G = 83 GPa for steel, and assume that friction at bearing D is negligible. Show complete solution, and the free body diagram.
10-47. The shaft is made of A992 steel with the allowable shear stress of Tal- 75 MPa. If gear B supplies 15 kW of power, while gears A, C and D withdraw 6 kW, 4 kW and 5 kW, respectively, determine the required minimum diameter d of the shaft to the nearest millimeter. Also, find the corresponding angle of twist of gear A relative to gear D.The shaft is rotating at 600 rpm. Sdo mm
FI0-12. Aseriesofgearsare mountedonthe 40-mm-diameter steel shaft. Determine the angle of twist of gear E relative to gear A. Take G = 75 GPa. G00 N-m 900 N-m SO0 Nm zio mm 300 N-m 200 mm S00 N-m 200 mm 200 mm
The motor produces a torque of T = 20 N # m on gear A. If gear C is suddenly locked so it does not turn, yet B can freely turn, determine the angle of twist of F with respect to E and F with respect to D of the L2-steel shaft, which hasan inner diameter of 30 mm and an outer diameter of 50 mm. Also, calculate the absolute maximum shear stress in the shaft. The shaft is supported on journal bearings at G at H.
The turbine develops 150 kW of power, which is transmitted to the gears such that C receives 70% and D receives 30%. The rotation of the 100-mm-diameter A-36 steel shaft is a 750 rev/min. The journal bearing at E allows the shaft to turn freely about its axis. The shear modulus of elasticity for A-36 steel is 75 GPa. (Figure 1) Figure 1 of 1 Part A Determine the absolute maximum shear stress in the shaft. Express your answer to three significant figures and include the appropriate units. Tax Value Submit Part B $8/0 Submit Request Answer Determine the angle of twist of end E of the shaft relative to B Express your answer using three significant figures. Provide Feedback VAX Units Request Answer ? Ivec 4 ? rad
10-18. The motor delivers a torque of 5ON-m to the shaft AB. This torque is transmitted to shaft CD using the gears at E and F. Determine the equilibrium torque T' on shaft CD and the maximum shear stress in each shaft. The bearings B, C, and D allow free rotation of the shafts S0m 30 mm 35 mm 125 mm
The turbine develops 150 kW of power, which is transmitted to the gears such that C receives 70% and D receives 30%. If the rotation of the 100-mm-diameter A-36 steel shaft is v = 800 rev>min., determine the absolute maximum shear stress in the shaft and the angle of twist of end E of the shaft relative to B. The journal bearing at E allows the shaft to turn freely about its axis.
10-57. The tubular drive shaft for the propeller of a hovereraft is 6 m long. If the motor delivers 4 MW of power to the shaft when the propellers rotate at 25 rad's, determine the required inner diameter of the shaft if the outer diameter is 250 mm. What is the angle of twist of the shaft when it is operating? Take Ta-90 MPa and G = 75 GPa.
The turbine develops 150 kW of power, which is transmitted to the gears such that C receives 70% and D receives 30%. If the rotation of the 100-mm-diameter A-36 steel shaft is w = 800 rev/ min., determine the absolute maximum shear stress in the shaft and the angle of twist of end E of the shaft relative to B. The journal bearing at E allows the shaft to turn freely about its axis. D 3 m E 4 m 2 m
The motor A delivers 3000 hp to the shaft at 1500 rev/min, of which 1000 hp is moved by gear B and 2000 hp is removed by gear C. Determine (a) the maximum shear stress in the shaft; and (b) the angle of twist of end D relative to end A. Use G = 12 x 106 psi for steel, and assume that friction at bearing D is negligible

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