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Alleviation of buffet-induced vibration using piezoelectric actuators

机译：使用压电致动器减轻自助振动

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The effectiveness of piezoelectric actuators in reducing vibratory response due to buffet loads on the F-16 ventral fin was investigated numerically. The study was initiated by tuning a finite element model of the ventral fin to existing ground vibration test data. Strain energy profiles were determined for the first five mode shapes. The modes most critical for active control were determined through a flutter analysis, in conjunction with existing flight test data, as well as a review of the structural detail of previous fin failures. Piezoelectric actuator patches were located within the regions of highest strain energy and aligned with the principal strain vectors in those regions. Published by Elsevier Ltd.
机译：数值研究了压电致动器在F-16腹鳍上由于自助载荷而减少振动响应的有效性。通过将腹鳍的有限元模型调整为现有的地面振动测试数据来启动该研究。确定了前五个模态形状的应变能曲线。主动控制最关键的模式是通过颤振分析，结合现有的飞行测试数据以及对先前鳍片故障的结构细节的审查而确定的。压电致动器贴片位于应变能最高的区域内，并与这些区域内的主要应变向量对齐。由Elsevier Ltd.发布

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