0.4 m 0.6 m Fig. P3.48 0.3 m PROBLEM 3.48 The electric motor exerts a torque of 800 Nm on the steel shaft ABCD when it is rotating at constant speed. Design specifications require that the diameter of the shaft be uniform from A to D and that the angle of twist between A and D should not exceed 1.5°. Knowing that zmax S 60 MPa and G 77 GPa, determine the minimum diameter shaft that may be used. [Ans. 42.1 mm] PROBLEM 3.52

0.4 m 0.6 m Fig. P3.48 0.3 m PROBLEM 3.48 The electric motor exerts a torque of 800 Nm on the steel shaft ABCD when it is rotating at constant speed. Design specifications require that the diameter of the shaft be uniform from A to D and that the angle of twist between A and D should not exceed 1.5°. Knowing that zmax S 60 MPa and G 77 GPa, determine the minimum diameter shaft that may be used. [Ans. 42.1 mm] PROBLEM 3.52

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

See similar textbooks

Similar questions

. Determine the angle of twist for the steel (AISI 4340, OQT 1200 F) hollow shaft with anoutside diameter of 40 mm and an inside diameter of 30 mm when transmitting 28 kWof power at a speed of 45 rad/sec. The shaft length is 400 mm
Design a hallow shaft (Diameter and length) that develops 80 kW of power while rotating at a speed of 4000 rpm. The design constrains are as under:The angle of twist not to exceed 0.200Shear stress is not to exceed 480 MN/m2The outer diameter is to be twice the inner diameter. The shaft length is to be three times the outer diameter. Modulus of rigidity = 79 GN/m2.
Detemine the maximum Torque that can be applied to a hollow circular shaft of 100mm outside diameter and 80mm inside diameter if allowable stress Τ less than or equal to 60mPa and without exceeding a twist of 0.5degrees in a length of 1m.
A solid shaft in a rolling mill transmits 30 hp at 100 rpm. Find the diameter in mm of the shaft so as not to exceed a shearing stress of 42 MPa and an angle of twist of more than 5 degrees in a length of 3 meters. G = 83 GPa
A 5 ft long solid SAE4340 OQT1000 steel shaft is required to transmit a power of 180 HP. The shaft speed is 3,000 rpm. The allowable shear stress is 50 ksi and the allowable angle of twist per foot of length is 0.04 radians. Determine the minimum diameter that meets the design requirements.
What is the minimum diameter of a solid steel shaft that will not twist through more than 4o in a 9 m length when subjected to a torque of 11 kN.m ? if G = 83 GPa
A hollow shaft of outer diameter 40 mm and inner diameter of 20 mm is to be replaced by a solid shaft to trandmit the same torque at the same maximum stress. What should be the diameter of the solid shaft?
(i) An engine shaft running at 4.5r.p.s. is required to drive a machine shaft by means of a belt. The pulley on the engine shaft is of 3.5m diameter and that of the machine shaft is 2m diameter. If the belt thickness is 9mm.Determine the speed of the machine shaft, when 1. There is no slip 2. There is a slip of 3% (ii) A cam, with a minimum radius of 25 mm, rotating clockwise at a uniform speed is to be designed to give a roller follower made of 20mm diameter at the end of a valve rod, motion described below : 1. To raise the valve through 58 mm during 122° rotation of the cam by simple harmonic motion 2. To keep the valve fully raised through next 32° 3. To lower the valve during next 66° by uniform acceleration and retardation. Determine the maximum velocity and…
Determine the diameter of a solid steel shaft which will transmit 112.5 kW at 200 rpm. Also determine the length of the shaft if the twist must not exceed 1.5o over the entire length. The maximum shear stress is limited to 55 N/mm2. Take the value of modulus of rigidity = 8 x 104 N/mm2.
What is the diameter of a solid shaft that will not twist through more than 1.5° in a 200 cm length when subjected to a torque of 120 Nm? Take G = 83000 MPa.
What is the minimum diameter of a solid steel shaft that will not twist through more than 3.18 degrees in a 6 m length when subjected to a torque of 14KN-m. What maximum shearing stress is developed? Use G=83GN/m^2.
A hollow steel (G = 12,000 ksi) shaft has diameters of 6 in. and 4 in. and an allowable shearing stress of 9,000 psi. Determine a. the horsepower transmitted at 25 rad/sec; b. the magnitude of the angle of twist in a length of 10 ft; and c. the required number of 3⁄4-in diameter bolts for a flange coupling in which two-thirds of the bolts are on a 12-in diameter bolt circle and one-third are on a 9-in diameter circle. The allowable shearing stress in the bolts is 12,000 psi.