<DOC>
<DOCNO>
390
</DOCNO>
<TITLE>
some panel-flutter studies using piston theory .
</TITLE>
<AUTHOR>
johns,d.j.
</AUTHOR>
<BIBLIO>
j. ae. scs. 25, 1958.
</BIBLIO>
<TEXT>
  the use of piston theory was recently advocated for supersonic
aeroelastic analyses, including the problem of panel flutter,
and this has stimulated the investigation reported here .
  linear piston theory is mainly considered, but some effects of
introducing higher order terms are discussed .
  flutter of rectangular simply supported panels and of elliptically
shaped clamped-edge panels is considered, and some justification
is provided for the use of /static/ aerodynamic forces
and the neglect of aerodynamic damping .  hence, it is concluded
that ackeret loading gives more exact results than piston theory .
  solution of the flutter equations is made by applying galerkin's
method to a rayleigh-type analysis using assumed modes of
deformation .
</TEXT>
</DOC>
