searching for a string vibration response program on SCILAB

Hollywood · science forum beginner Joined: 19 Mar 2006 Posts: 11

Hello dear members of the sci.engr newsgroup.

I'm working on a string vibration problem dealing with differential
equations.

I'm searching for a SCILAB program that simulates the response of a
string length L=1 (Omega=] 0,1 [) under an excitation F (X, T) =chi
(X) cos (wt)
- chi indicates the function characteristic of the interval ]a,b[ on an
interval of time [0, T].

This program have to make it possible to visualize on the same graph
the evolution in time of three approximate solutions:

* the numerical solution obtained by applying the method of
superposition of modes (decomposition on K first clean modes),

* the solution obtained while discretizing in space by the method the
finite differences.

It seems that is a classical problem which had to be well probably
already written. You know where I can find it please?

Many Thanks.

Hollywwod

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