1003_Mechanics Homework Mechanics of Materials Solution

# 1003_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 8-C4 8.04 The solid shaft A3 of length L. uniform diameter d, and allowable shearing stress ran rotates at a given speed expressed in rpm (Fig. P8.C4). Gears 6., 62, . . . . G” are attached to the shaft and each of these gears meshes with another gear (not shown). either at the top or bottom of its vertical diameter. or at the left or right end of its horizontal diameter. One of these other gears is connected to a motor and the rest of them to various machine tools. Denot- ing by r,- the radius of gear GE, by as; its distance from the support at A, and by P,- the power transmitted to that gear (+ sign) or taken off that gear (— sign). write a computer program to calculate the smallest permissible value of the di- ameter d of shaft AB. Use this program to solve Probs. 8.25, 8.29, and 8.77. SOLUTION 1, Enter ﬁx) in rpm and defermiwe freft/encj 3‘:oO/60- 2. For each gear) defﬁm‘n‘ne The Tor'7ue Ti: Fag/21775:) where P; 1': ﬂag Pow/c:- I‘nfauf (4-) or ctr/Put (ﬂab ﬂat-“39a!“- 3. For (M ch gear) defer-mine Me force Fi = 71/2; exerf’f’r/ 0V1 T'hegear and ”'5 Components (Fa); athF). . & L. 44, Defer-mine H/ze components AC1] Cyndi ﬁg of (reaction ﬂtﬂ 157 .S’mem'J/LQi morﬂen‘f's about (Me-9 Bg’//zz and ﬁg’//g_: EMW 4% a feta-cam e: 1—205). as.» zmjﬁ—or Aét +Z(F£);(L-c.-)=0) A ~.— “1): 309:1“ 15) 5-. Deferﬁ'ung (M\$)i 3 (M3)L) and forfue—IEJUSI' To We (6"?!- of- 3'ear EL. _. Agctj+E(f§)k<C"—ck> l’ cc. _. Elﬁn < cL.—c’k.> _ o 7; (Ci ck> Who’d < > indicates a. Sr‘Mgulara‘ﬁ-f function. (CONTINUED) I ...
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