2009 Volume 6 Issue 11 Pages 787-793
In this paper a limit cycle analysis of attitude control for a launch vehicle is described. PWM signals from PD control laws are applied to attitude control and time delay in solenoid valve is considered. A novel phase plane method is proposed for describing characteristics of limit cycle. Important characteristics of resultant limit cycle such as frequency, amplitude, maximum rate, and duty ratio could be analytically solved by the proposed phase plane method.