Key points are not available for this paper at this time.
heon in the fiol(i of m eohanieal v ibration and his publish ed work has h eon eoncerned mainly with t,he vibration of cylindrical shells and plates, amI the propagation of ground vibration from maohinos to strue tures .The former work has been used in the d etermin ation of nai-ural frequencies of aircraft, m.is:;iles and suhmarines.
A Tue, study studied this question.