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

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Figure 3.25 shows the operation <strong>of</strong> normalization for a certain<br />

function u(•). <strong>The</strong> curve U(z) is obtained from the curve u(•)<br />

by dividing each value <strong>of</strong> the ordinates <strong>of</strong> the first curve by its<br />

norm u(z)/ max. <strong>The</strong> second curve is normalized since its norm<br />

U(Z)/max is equal to one.<br />

<strong>The</strong> process <strong>of</strong> successive information will consist <strong>of</strong> determining<br />

eigenfunction u(i+l) <strong>and</strong> eigenvalue 2 if there is an<br />

initial approximation <strong>of</strong> function ui, based on the formula <strong>of</strong> simple<br />

iteration<br />

S2<br />

SK(3.41)<br />

r<br />

- 2<br />

In this formula there are two unknowns: u(i+l) <strong>and</strong> 2c(i+l)"<br />

<strong>The</strong> method <strong>of</strong> successive approximations enables us to find the unknowr".<br />

For this we find integral operator Kui from the function <strong>of</strong> the<br />

initial approximation ui" <strong>The</strong> first approximation will be obtained<br />

by normalizing the result:<br />

- 2<br />

W+1 I/a (.2<br />

Since the unknown number c(i 2) is in both the function <strong>and</strong><br />

c(i+l)<br />

the norm as the multiplier, it is shortened, which makes it possible<br />

to carry out further calculations without determining it in the intermediate<br />

stages.<br />

After determining u(i+l) the operation is<br />

the following approximation:<br />

repeated <strong>and</strong> we find<br />

tt(t+2)-'=toCUi+-, Kato-o• ( 3.113)<br />

etc., until two neighboring approximations give sufficiently good<br />

eigenfunction agreement.<br />

274

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