Design a muff coupling to connect two shafts transmitting 40 kW at 120 r.p.m. The permissible shear nd crushing stress for the shaft and key material (mild steel) are 30 MPa and 80 MPa respectively. "he material of muff is cast iron with permissible shear stress of 15 MPa. Assume that the maximum orque transmitted is 25 per cent greater than the mean torque.

Design a muff coupling to connect two shafts transmitting 40 kW at 120 r.p.m. The permissible shear nd crushing stress for the shaft and key material (mild steel) are 30 MPa and 80 MPa respectively. "he material of muff is cast iron with permissible shear stress of 15 MPa. Assume that the maximum orque transmitted is 25 per cent greater than the mean torque.

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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2. Design a muff coupling to connect two shafts transmitting 40 kW at 120 r.p.m. The permissible shear and crushing stress for the shaft and key material (mild steel) are 30 MPa and 80 MPa respectively. The material of muff is cast iron with permissible shear stress of 15 MPa. Assume that the maximum torque transmitted is 25 per cent greater than the mean torque
7. Design a muff coupling for joining shafts transmitting 8 kW at 400 rpm. The shaft and the key are made of steel with 45 MPa and 80 MPa allowable stresses in shear and crushing, respectively. The material of the sleeve is CI, with allowable shear stress 10 MPa. Service factor KS =1.2.
Design a muff coupling to connect shaft transmitting 40kw at 120rpm .the permissible shear and crushing stresses for the shaft and the key material are 30Mpa and 80Mpa respectively .the material for muff is cast iron with permissible shear stress is 15Mpa .assume that maximum torque transmitted is 25 percent greater than mean torque.
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Design a typical rigid flange coupling for connecting a motor and a centrifugal pump shafts. The coupling needs to transmit 15 KW at 1000 rpm. The allowable shear stresses of the shaft, key and bolt materials are 60 MPa, 50 MPa and 25 MPa respectively. The shear modulus of the shaft material may be taken as 84GPa. The angle of twist of the shaft should be limited to 1 degree in 20 times the shaft diameter. Note: show complete handwritten solution
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