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首页> 外文期刊>Journal of the American Helicopter Society >Individual Blade Control Methodology for a Rotor with Dissimilar Blades
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Individual Blade Control Methodology for a Rotor with Dissimilar Blades

机译:具有不同叶片的转子的单独叶片控制方法

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摘要

An adaptive control algorithm is developed to reduce hub vibration of a dissimilar rotor. The control strategy can be implemented using smart material actuated on-blade trailing edge flaps. Each flap is controlled individually, optimally taking into account blade dissimilarities and damages. The controller is tested using a comprehensive rotor aeroelastic analysis. The analysis includes dissimilar blade modeling and accounts for aerodynamic and inertial effects of trailing edge flaps. The controller successfully reduces all harmonics of the hub loads arising out of blade dissimilarities. Significant improvements in vibration reduction are predicted using the present individual control method as compared to a classical control method. A 98% reduction is achieved for a single targeted load, and at least 40% for all six hub vibratory loads for a combined objective function. In all cases, trailing edge flap deflections are limited to +-4°.
机译:开发了一种自适应控制算法,以减少异种转子的轮毂振动。可以使用智能材料驱动的叶片后缘襟翼实现控制策略。每个襟翼均受到单独控制,最佳地考虑了叶片的差异和损坏。使用全面的转子气动弹性分析对控制器进行了测试。该分析包括不同的叶片建模,并考虑了后缘襟翼的空气动力学和惯性效应。控制器成功地减少了由于叶片不相似而引起的轮毂负载的所有谐波。与传统的控制方法相比,使用本发明的单独控制方法可以预测减振效果的显着提高。对于单个目标负载,组合目标功能可实现98%的降低,对于所有六个轮毂振动负载,至少可实现40%的降低。在所有情况下,后缘襟翼的偏转都限制在+ -4°。

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