Mathematical modeling of self-induced oscillations of a segmental-conical body with free movement in the pitch angle

Numerical simulation of self-induced pitch oscillations a segmental-conical body at Mach number M = 2.0 is performed using the mathematical model pitching moment, which includes an ordinary linear differential equation first order. The parameters were determined from condition best agreement between calculated and experimental transient processes angle in time. modeling was also carried out time-lag hypothesis concepts aerodynamic derivatives. It shown that proposed not only satisfactory describes process like other two, but explains known effects.