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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part K, Journal of Multi-body Dynamics >Modeling and verification of a missile launcher system
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Modeling and verification of a missile launcher system

机译：导弹发射系统的建模与验证

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摘要

The launcher models used in most of the previous studies have few degrees of freedom that cannot possibly capture many important motion characteristics. In this work, a flexible multibody model of a missile launcher system is built. The fixed, azimuth and elevation platforms and the launching pod are modeled as flexible bodies. Both the normal vibration modes and constraint modes are considered. Modes that do not contribute significantly to the total strain energy are eliminated to reduce simulation time. The joint flexibility effects are also included to the model by spring-damper elements. For the plume force and the motor thrust, experimental data are utilized. The forces transmitted to the base of the launcher system and the azimuth platform displacements during the launch are determined. Launching tests show good conformity with the simulation results, thus revealing that the developed model provides a realistic representation of the system.
机译：先前大多数研究中使用的发射器模型具有很少的自由度，无法捕获许多重要的运动特征。在这项工作中，建立了导弹发射系统的灵活多体模型。固定，方位和高程平台以及发射吊舱被建模为柔性体。同时考虑了正常振动模式和约束模式。消除了对总应变能没有显着贡献的模式，以减少仿真时间。弹簧阻尼元件还将关节柔韧性效应包括在模型中。对于羽流力和电机推力，利用了实验数据。确定在发射期间传递到发射器系统基座的力和方位平台位移。发射测试表明与仿真结果具有很好的一致性，因此表明开发的模型提供了系统的真实表示。

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