HW14 - il LINDSEYCHUN HW#3.88 Consider the rudder assembiy...

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il' ooo E t !! F (|| E .s -tIt * LINDSEY CHUN HW#3.88 Consider the rudder assembiy of a radio-confrolled rnodel airphne. For the 15. position shorvn in the figure, uhe net press-ure acting on the iefl side of the rectanguJar rudder area isp : +{t0*5) N/mm*. Dcter_ mine the required force P in the conhol md DE and the horizontal components of the reactions at hinges A and B which are pa.rallel to the rudder surface. As_ sume the aerodynamic pressure bo be uniform. Force P in DE, and horizontal components at A & B FIND: DIAGRAM: SOLUTION: ? = pA fxl = @ *r--s) (1ao)t<d7 -,193e ful 7 P ,1 Pr r^girJ|9^ry rr CHr-) rL 5nt.-. --o fu,-*'l -Pcd\+FCzt)=o ' P --fi"rs3s)cL4) I L zz-t t's'n lso J -- .zos4 fN] ?-- .z06 trul E'Fj oaso$l zF, =o rr + n, ts\= = D d,= 2>- 16sr,', rS o ful -q - Q Pr-B.( F*s\so +. otl'D ,zvEq JM** =O Et'l-","] :g, t4z) r Pcos lso(l6) i" = - PcortsoCl6\ -- -. oa's15 4z- 1$ A ^
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f. sqt ogo ifib E t !E F at E F s * LINDSEY CHUN HW#3.94 A rectangular sign over a etsre has a rnss of 100 kg, with the center oT mess in the ccntern of the rectan- gle. The support qgainst the wall at point C may be treated as a ball-and-$ocketjoint. Af eorner D sup-
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This note was uploaded on 06/15/2010 for the course ME 212 taught by Professor Staff during the Fall '05 term at Cal Poly.

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HW14 - il LINDSEYCHUN HW#3.88 Consider the rudder assembiy...

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