Experimental Aerodynamic Control of a Long-Span Suspension Bridge Section Using Leading- and Trailing-Edge Control Surfaces
Experimental Aerodynamic Control of a Long-Span Suspension Bridge Section Using Leading- and Trailing-Edge Control Surfaces
复制标题
DOI：
10.1109/tcst.2015.2501346
复制
发表时间：
2016-07
影响因子：
4.8
通讯作者：
Kevin Gouder;Xiaowei Zhao;D. Limebeer;J. Graham
中科院分区：
文献类型：
--
作者：
Kevin Gouder;Xiaowei Zhao;D. Limebeer;J. Graham
本文对大跨度悬索桥颤振的抑制进行了实验研究。将大跨度悬索桥的刚性截面模型安装在悬架系统的风洞中。用于抑制颤振的控制面是可移动的襟翼，安装在桥段的前后边缘。襟翼是响应甲板的升降和俯仰运动。在本文中，气动力是使用薄翼理论建模，虽然其他建模技术可以使用。控制器有一个二阶被动传递函数，输入是甲板俯仰角和升沉位置的组合，输出是襟翼的角度位置。将控制系统设计问题求解为H∞优化问题。
We experimentally investigate the suppression of flutter in long-span suspension bridges. A rigid sectional model of a long-span suspension bridge is mounted in a wind tunnel on a suspension system. Control surfaces, which are used to suppress flutter, are movable flaps that are fitted to the bridge section's leading and trailing edges. The flaps are responsive to the deck's heave and pitch motions. In this paper, the aerodynamic force is modeled using a thin aerofoil theory, although other modeling techniques can be used. The controller has a second-order passive transfer function with inputs of a combination of the deck's pitch angle and heave position, and outputs of the flaps' angular positions. The control system design problem is solved as an H∞ optimization problem.