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首页> 外文期刊>Transactions of the Japan society for aeronautical and space sciences >On Simplified Mechanical Models for Body Divergence and Flutter*
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On Simplified Mechanical Models for Body Divergence and Flutter*

机译：关于人体发散和颤动的简化机械模型*

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摘要

The present paper sheds some light on simplified mechanical models in order to discuss the dynamic stability of slender flight bodies subjected to aerodynamic loads. Firstly, we discuss the nature of a suitable simplified mechanical model to demonstrate body divergence and flutter. A method leading to a rational mechanical model is presented. It is shown that a simplified model composed of three bars connected together by two elastic rotational hinges, having four degrees-of-freedom, is preferable to discuss both body divergence and flutter. Secondly, after having a duly simplified mechanical model, effects of mass distribution, stiffness distribution and location of a stabilizer fin are discussed. A perspective of body divergence and flutter of slender flight bodies is demonstrated on the basis of the proposed simplified mechanical model.
机译：本文讨论了简化的机械模型，以讨论承受气动载荷的细长飞行体的动态稳定性。首先，我们讨论合适的简化机械模型的性质，以证明人体发散和颤动。提出了导致合理力学模型的方法。结果表明，简化的模型由三个杆组成，该杆由两个具有四个自由度的弹性旋转铰链连接在一起，可更好地讨论人体发散和颤动。其次，在适当简化了力学模型之后，讨论了质量分布，刚度分布和稳定鳍片位置的影响。在所提出的简化力学模型的基础上，展示了细长飞行体的身体发散和颤动的观点。

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