论文标题
用于基于模拟的桥梁形状优化桥梁甲板的框架，用于不同极限状态现象
Framework for a simulation-based aerodynamic shape optimization of bridge decks for different limit state phenomena
论文作者
论文摘要
风诱导的反应控制着长跨桥的设计。甲板的形状是最重要的因素之一，不仅会影响机械性能，而且会极大地影响桥梁的空气动力学性能。提出了一个有效的框架，以使用计算流体动力学（CFD）模拟对桥甲板进行空气形状优化，并考虑了考虑空气弹性现象的响应表面策略，例如颤动，自助餐和涡流诱导的振动（VIV）。使用了甲板的参数化横截面，以确保所需的行车道宽度和结构需求。已经采用了粒子群优化算法，该算法可导致优化形状，与参考部分相比，性能更好。提出的空气动力学优化框架具有很大的潜力，可以用于长跨桥的设计。
Wind-induced response governs the design of the long-span bridges. The shape of the deck is one of the most important factors that not only affects the mechanical properties but greatly influences the aerodynamic performance of the bridge. An efficient framework is proposed to perform aerodynamic shape optimization of a bridge deck using Computational Fluid Dynamics (CFD) simulations and response surface strategies considering aeroelastic phenomena such as flutter, buffeting and Vortex-induced Vibrations (VIV). A parameterized cross section of the deck has been utilized ensuring required carriageway width and structural demand. The Particle swarm optimization algorithm has been employed which leads to an optimized shape that performs better as compared to the reference section. The presented aerodynamic shape optimization framework has a great potential to be used in the design of long-span bridges.
