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ACTIVE STRUCTURAL CONTROL AGAINST WIND

机译：主动结构控制风

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摘要

The development of a new active aerodynamic control device (AFS) as shown in Fig. 2 is presented in this paper. The device is simple to implement and has the capability of controlling the along-wind as well as the across-wind vibrations. The primary forcing in the along-wind direction is provided by the incident turbulence. The device produces control forces based on the exposed surface area of the flaps. A switching function is presented to effectively use the force produced by the device for controlling the along-wind motion. Across-wind vibrations are modeled as vortex shedding resonant vibrations. The effect of the control device is to produce vortices at the desired phase and frequency. The influence of the device on the across-wind vibrations is derived as a parametric stiffness term. An energy optimal control algorithm is proposed for the across-wind direction. A bidirectional control algorithm is also derived to control the two vibratory directions simultaneously.
机译：本文介绍了如图2所示的新型主动空气动力控制装置（AFS）的开发。该设备易于实施，并具有控制顺风和横风振动的能力。沿风向的主要强迫是由入射湍流提供的。该设备根据襟翼的暴露表面积产生控制力。提出了一种切换功能，以有效地利用由设备产生的力来控制顺风运动。横风振动被建模为涡旋脱落共振振动。控制装置的作用是产生所需相位和频率的涡流。设备对跨风振动的影响可作为参数刚度项导出。提出了一种针对风向的能量最优控制算法。还导出了双向控制算法来同时控制两个振动方向。

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