The invention discloses a method for determining the optimal frequency of a blade pendulum type vibration absorber. The method comprises the following steps: designing a single pendulum vibration absorber with adjustable frequency according to a theoretical formula; the simple pendulum vibration absorber is installed at a target position, a flight test is carried out, and the vibration quantity value of the target position under each simple pendulum frequency is obtained; drawing a relation curve between the frequency of the simple pendulum and the vibration quantity value of the target position by controlling the vibration of the target position as an object; and determining the optimal frequency of the simple pendulum according to the curve inflection point. According to the method, the problem of inaccurate simple pendulum frequency design caused by nonlinearity, structural size and distributed weight can be avoided.
本发明公开了一种确定桨叶摆式吸振器最优频率的方法,按照理论公式设计频率可调的单摆吸振器;将单摆吸振器安装于目标位置,开展试飞试验,得到目标位置在各单摆频率下的振动量值;以控制目标位置的振动为对象,绘制单摆频率与目标位置振动量值之间的关系曲线;根据曲线拐点,确定单摆的最优频率。本发明可以避免由非线性、结构尺寸及分布重量引起的单摆频率设计不准确的问题。
Method for determining optimal frequency of paddle swing type vibration absorber
一种确定桨叶摆式吸振器最优频率的方法
2023-05-30
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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