Accurate subcritical damping solution of flutter equation using piecewise aerodynamic function

An alternative to the p-k method for accurate subcritical damping solution is presented. By combining the concepts used in rational function aerodynam ics and using the piecewise aerodynamic interpolation function commonly use d for the k method, a piecewise aerodynamic flutter equation is defined, wh ich provides for accurate noncritical damping. A solution of the piecewise flutter equation is described, which is noniterative and which can be used to get results at a single velocity. The resulting flutter method provides a solution of the flutter equation with accurate subcritical damping that i s efficient and reliable.