13_Mechanics Homework Mechanics of Materials Solution

# 13_Mechanics Homework Mechanics of Materials Solution - ‘...

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Unformatted text preview: ‘ PROBLEM 1.14 1.14 Two hydraulic cylinders are used to control the position of the robotic arm ABC. Knowing that the control rods attached at A and D each have a 20-mm diameter and happen to be parallel in the position shown, determine the average normal stress in (a) member AE, (11) member DGA 5"" N SOLUTION Use member ABC our. -Free body. ‘9 EM, a o (0.150) % FAE - (o. 600M200) = o rag: Ll-xlos N Area. 6F V‘Oo’ in hue-«Lu A5 in A = ¥d1=\$aoﬂasf = 3lLl-.l6¥/O’¢ m.‘ 3 S‘l’V‘C'JS in Y‘DJ AF: €AE=—K‘-£ 2' 3ltffjl60xlo'6 = [1.73 xjo‘ P51 (OJ SHE '5' l2.73 l4?0. " US: Com lat-nae, members ABC and BFD 0.5 ‘Fttee body ”-9 EN; = 0 Co. wax-g Fm- (Montg- Fm) - 0.0.50 -o.asojcaoo‘; 2: o Fur-Woo N Aveq “m trod, DG 6:- A= lat: #(Qoxlodr = 3l‘fJé W0" Mt S-l-nss ‘m Mal 'DG: 6“ = E92- = iL = —4.'77>(}06 Po. A 3.14iéxlo“ (b) 6‘» = — 4.77 MPq, 4 ...
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