Application of constraint force equation method for missile launching dynamics modeling

A missile launching dynamics model based on the constraint force equation (CFE) method was presented, by applying the constraint equations and joint degrees of freedom in traditional launching dynamics equations. An incline launching missile system was researched, the missile body and the launching device were connected by a joint of two degrees of freedom, constraint forces and moments in launching process were obtained by calculating the dynamics model. In the end the same case was calculated using software automatic dynamic analysis of mechanical systems(ADAMS), results were compared and analyzed with the CFE method, a good agreement is achieved, so the application of this method used for missile launching dynamics modeling is verified and the method's application range is extended.