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Lock-in prediction for bridge decks using a Discrete Vortex Method

机译：使用离散涡流法对桥式甲板的锁定预测

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Wind-induced vibrations caused by the alternating forces from the shedding of vortices have been encountered with several long-span bridges in the past. Numerical simulations of this response phenomenon have to date been barely successful, which may be attributed to the complex flow processes involved in the synchronisation between the vortex shedding and the oscillation of the structure. An incompressible two-dimensional Navier-Stokes solver based on the Discrete Vortex Method is introduced and coupled with a suitable structural dynamics time-marching scheme. Fluid-structure interaction analyses on the Storeboelt Bridge deck are performed, yielding information on the properties of the lock-in region. Furthermore, an extension of the method to the third dimension is proposed.
机译：过去遇到了几种长跨度桥梁由换流的交替力引起的风引起的振动。该响应现象的数值模拟必须迄今为止几乎不能成功，这可能归因于涡流脱落与结构振荡之间的同步中涉及的复杂流程。基于离散涡流法的不可压缩的二维Navier-Stokes求解器，并与合适的结构动力学时间线程方案耦合。进行储存桥梁桥面上的流体结构相互作用分析，从而产生关于锁定区域的性质的信息。此外，提出了将方法的延伸到第三维度。

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