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Unformatted text preview: l .v n v n, 1"”“1 ., ~ ‘ y. \ .. , 7‘. ._A.;‘ 3269 One of two hollow drive shafts of _a cruise ship is 40 m long, and
. is cute; ahd inner diameters are 400 mm mid 200 mm, rcspedivc‘ly. The shaft
, is made of a steel for"Which 1".“ ‘= 60 MPa and G‘ 7—— QPa. Knowing that
the maximumspecd of rataﬁo'ri'éflihé Sh'eiffhi'sﬂléo rpm, determine (althe . maximum'poWet that can be: transmitted by one shaft to its propeller, (b) the ‘
V .corrcsponrdingiangla‘pf {wisp 9f lithe shaft. ‘ 'V
v — M V > .3137 ‘  m ttonjue iggpﬁlired t6 é ﬁoﬁﬁw shaft having thé crogsf '
section shown and a uniform 6mm wall thickness. Neglecting the effect 0f =
(r _‘ Stress concentrations. determine the shearing stress at points a and b. i
I ‘ i
, ' ‘ 9 3.139rand 3.140 3 hollow member havingxhgcmss section $11de ism
3 ‘ 14, D. be formed from sheet metal of 0.06 in. thickness. Knowing that 3.12501!)  in.
_ ‘ " ‘ ‘ ' torque will be applied to the member, determine the smallest dimansion d that .,;
. can be used if the shearing stressvis not to exceed 750 psi. ‘
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2m, " I, 4 CL
W‘ Z< @137 [232) U: nil/L .: d: 0‘994’L'1jh;' . W g amtM5 1 I .
25(/84<12(6g”’)2<0'0655h3 ' may i ...
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This note was uploaded on 02/23/2012 for the course CE 3400 taught by Professor Moorthy during the Spring '09 term at LSU.
 Spring '09
 MOORTHY

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