Question

The figure shows a transmission shaft. The steel solid shaft is 200 mm long between self-aligning bearings at A and B. Belt forces in the same horizontal direction) are applied to a 120-mm diameter sheave at C. The left end of the shaft is connected to an electric motor attached to a clutch by means of a flexible coupling. Nothing is attached to the right end (it is free). Assuming the shaft has a constant diameter, d. (a) Perform the necessary stress analysis and draw the critical stress element (6) Using stress element and Mohr circle approach, find the principal stresses and the maximum shear stress. (C) For a factor of safety of 2, and material made of plain carbon steel (AISI 10XX), specify a safe diameter d and a material for the part 100 Free and of shaft 100 2000 N A where is a pully with gred for holding beli The ground where the frame of the where the slows the wineret meve freely mindig whick Share bused to direct cable ortope, bilderwer Source Wikipedia 120 mm She 400 N Connected to et coupling and clutch

Answer 1

07 Given: The figure shows transmission shoft. The steel solid shaft 200 mm long between self-aligning bearing at a and B - Belt forces are applied to a 120mm diameter sheave at c. Assuming the shaft has constant diameter,d. de 120 mm Now fr.com symmetry Ч Gy = 2000-480 - le 100mm *BY Ay = By = (200 N 2000 Here 400N Vomar = 1200N = 1200 x 100 = 1.2x109 Mmo Tman = (T-T); = 9.6x100 mm S 2000-409) 120 @ bending stres, 32M Tids 12223) ds 3221.2 x 100 Td3 = 16x9.6x104 d3 てる Corsional Shear stress = 488924 Td3 ob оъ At pointa is critical point and stress element in this section shown. 6 mone circle analysis - Eman now principle stresses T (MPa) で、 9= a + b)+2² ob IT o impa) TE 12223) 203 + 122231) + 2 23 553844.0 d3 MPa 492729 de

maximum shear stress, Znan = 492229 d3 fo factor of sofety of 2. and motericl mode of ploin corb on steel (AISI 10xx), then sofe material diameter 1d) for moterial AISI Joxx Geild stress, g 200 mpc How for safe design (from MSST) Eman) induced z Zgiel as (Tollowable) s 49 27 29 느 0-5 X200 d 3 2 d = 21.44 = 22 mm