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Aeroelastic Time-Domain Simulation of SNL Smart Rotor Experiment

机译:SNL智能转子实验的气弹时域仿真

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In this paper one of the first utility scale smart rotors is studied in detail. The structural response of the Sandia National Laboratories Smart Rotor Experiment due to flap excitation has been modeled by the in-house code DU-SWAT and compared to experimental data. Good agreement has been found for both tower and blade motion. The numerically obtained blade motion shows stronger damping than in the experiment. As the sectional aerodynamics have been verified, this increase in damping can be attributed to assumptions in the blade element method. The tower dynamics, which are mostly dominated by structural damping, can be reproduced very accurately also for high flap deflection angles.
机译:在本文中,对第一个实用规模的智能转子之一进行了详细的研究。桑迪亚国家实验室智能转子实验由于襟翼激励而产生的结构响应已通过内部代码DU-SWAT建模,并与实验数据进行了比较。对于塔架和叶片的运动,已经找到了很好的协议。数值获得的叶片运动显示出比实验中更强的阻尼。由于已经验证了截面空气动力学特性,因此阻尼的增加可归因于叶片单元法中的假设。对于高的襟翼偏转角,也可以非常精确地再现主要由结构阻尼决定的塔架动力学。

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