991_Mechanics Homework Mechanics of Materials Solution

# 991_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 8.78 Fowce‘s (I4 vertical Pique, Zoo M A C D B Forces in howiZo-«u‘l‘aj Pym-re ‘3“! 3‘17? ! 2‘53 H I C. D 2 530,5 N-w. 2553 W'" 8. 78 The motor M rotates at 300 rpm and transmits 30 kW to the solid shaft AB through a ﬂexible connection. Half of this power is transferred to a machine tool connected to gear E and the other half to a machine tool connected to gear F . Knowing that 2',” =60 MPa, determine the smallest permissible diameter of shaﬁAB. SOLUTION SOOWPmt \$97—\$34: P _ Soxl0°_ — TM '2 277‘? _ 'C—r—‘Qn (.5) - “[59,? N-M Torque; on seams C amp. T Tc : To : ﬁTM = 977.5 N'M Slam” +00“? wee. MA: ‘['M = €154.07 N-w: Ac: T,.c = 75%.? Mm CD: ‘1;o = 911.5 N-m DB: Tan: 0 Gear {for r. e .9. Ft: lee—W5 = 3919 N V1 IZDWO'S .. T __ 4977.5. _ FD — 7: —,—-—-——-20m.3 - 377°: N wa‘i‘icup For‘n‘} is Jus+ +9 ‘Hne ﬁe‘Pf o‘F jeav‘ C Tm, : \$54.“! N- M. 530.; Nam M : 245.5 N-M 111~1;+l~'1_3,"+'r" = [124.1 N-M E J i -.- 1C5: ML‘H» ‘+T" C 7» 71M “14-1 r. 1. 2,2. 85‘nl0‘3 In 4527 mm 4 2c = #5.? H073 M ...
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