TORSION OF SHAFTS-ASSIGNMENT A torque of 10 k N m acts on a 100 mm diameter steel shaft. Determine the maximum shearing stress in the shaft. Also calculate the stresses and strains at 20 mm, 40 mm, 60 mm and 80 mm diameters. Show the stress variation and strain variation. Given G = 80 G […]
INTERVIEW SHORT QUESTION ANSWERS -Torsional moment Q1Find the ratio of the torsional moments of resistance of a solid circular shaft of diameter ‘D’ and a hollow circular shaft having external diameter ‘D’ and internal diameter ‘d’. A. Torsional moment is torque’ T ’. Tsolid = (πD3/16) z Thollow = π(D4—d4)/16 D) z Ratio Tsolid / […]
Mcq: Torsion of shafts Variation of shear stress in a shaft is (a) Parabolic (b) Linear (c) Cubical (d) None (Ans: b) Power in watts in a shaft having N RPM is given by the equation (a) Power = 2π NT/60 (b) Power = 2π N T (c) Power = 2000 π N T/60 (d) […]
Short Interview Question Answers: Torsion Explain each term in the torsion equation and state the assumptions used in deriving torsion equation. T / J = τ / r = G θ / L T = torque acting on the shaft, Nm J polar moment of inertia, m4 τ is the shear stress, N/mm2 G = modulus of […]
Torsion of Shafts – Design of Shafts (i) Only T is acting Torsion equation is used i.e. Tmax / J = τ/r = Gθ/L (ii) When T and M are acting. (a) Find Equivalent torque Teq =( T2 + M2)0.5 Equivalent torque is one which acting alone produces the combined shear effect of T and bending effect of M together […]
TORSION OF SHAFTS–1 Q. VARIOUS FORCES/MOMENTS ACTING ON A SHAFT There are three types of forces acting on a shaft. These are torque, bending moment and axial thrust. All the three acts on a propeller shaft. Torque and bending acts on all other shafts except the propeller shafts. Propeller shafts are those in which a […]