hw12_sol

hw12_sol - l .v n v n, 1"”“1 ., ~ ‘ y. \ .....

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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 6-mm 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. ‘ 2M § III. C 2m, " I, 4 CL W‘ Z< @137 [232) U: nil/L .: d: 0‘994’L'1jh;' . W g amt-M5 1 I . 25(/8-4<12(6g”’)2<0'0655h3 ' may i ...
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hw12_sol - l .v n v n, 1&amp;quot;”“1 ., ~ ‘ y. \ .....

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