ロケット発射時のロケット－ランチャ系の動的応答の有限要素法解析 Finite Element Dynamic Response Analysis of Rocket-Launcher System at Lift-off
A method is proposed to analyze dynamic response of a rocket-launcher system at lift-off. In this paper, rocket-launcher system is modeled as finite element Bernoulli-Euler beams connected with two slippers which are modeled as linear springs. A beam element with a moving spring is devised to represent the rocket-launcher interaction. Coupled equations of motion with time-varying coefficients are derived and solved by using direct method such as the Wilson θ method to calculate the dynamic response of the system. To verify the validity of this method, dynamic response is calculated by using the data of M-3S rocket-launcher system. Two rocket models, rigid-body and elastic-body models, are used in this calculation. The numerical results obtained from two models are compared and discussed.
- 日本機械学会論文集 C編
日本機械学会論文集 C編 69(687), 3029-3033, 2003