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Design and Stress Analysis of Extraterrestrial ... - The Black Vault

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•+ , , ; Im•<br />

S,<br />

-I i<br />

I<br />

I- I'<br />

substituting the boundary conditions, into equation (3.128) we obt'4n<br />

four equalitieswhich defihie the constants A, B, C, <strong>and</strong> D:<br />

* - A+C=O;<br />

A cosu-+B s~na+C~ha+Dsha=:o;<br />

SI<br />

I<br />

-ACoscz-Bs~npu+CCha+Dsha=O,(31)<br />

~ I<br />

,~ si a,, -,+ Sh a<br />

* os-Bsnia+iCschuOsh.;:<br />

hence it follows thatA =C%<br />

form:<br />

0 <strong>and</strong> equalities (3.130) apsume thb<br />

Bsina+Dshpx'O;<br />

War, Ineese in a zeosftowfc masta hf<br />

<strong>The</strong> determinant <strong>of</strong> thia system <strong>of</strong> equatibrss is<br />

Sazeo ,Jut.n &()==2shasna. wi men'tah , (3131 hf<br />

<strong>of</strong> ystm<br />

resc-ciiinear shape.i <strong>The</strong>n'efore the determinant (3.131)<br />

(-131) ustbe~equal to zer 9 :<br />

I<br />

II<br />

(3.1310'<br />

We need only t1~e reali<br />

"formT<br />

roots, <strong>and</strong> equaJ~ty,(3.13P') assumes the<br />

I<br />

, s hla sn0. . (3.132)<br />

,, I<br />

I<br />

2 I<br />

This means thateD 0; quantity Ba however, remains arbitrary. <strong>The</strong><br />

I<br />

:<br />

I<br />

oots<strong>of</strong>s equation (3.1321) are other than zero , nd ,quai<br />

SI 1( . 3172<br />

•' ~~372 ''

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