A Numerical Algorithm for Dynamic Analysis of Missile Launchers

The projection strucrure is vibrated by the
dynamic effects of the projectile in the inital stahes
before seperation. This induces two major results,
one is the calculation of stresses obtained decause
of bib ration in order to design the launcher and
other one which. is bery important, is the
determinaion of initial condirions of the nissile
prijection at the time of fron the launcher. These
conditions are not the same as the static conditions
before projection, beacuse of vibration at the time
of projection. Thereford, these conditions should be
determined in order to be accurate in hirring the
targer.
in thes study, a numerical algorithm based on
Structural lmpedamce Approach (1), (3), (4), (5),
(6), (7) is presenred to obtain the appropriate
governing equations. Finally, a Software has been
prepared bu whic the displacements of different
points on the launcher at various time snd initial
conditions of missile at the time of seperction from
the latncher can be predicted.