How significant is aerodynamic damping of wave-induced motion? 浪载运动响应引起的气动阻尼是否重要?
The infuence of coupling effect was taken into account and aerodynamic damping force was calculated. 考虑了风与结构耦合作用的影响,计算了结构的气动阻尼力。
Based on the results and finite element formulation, the flutter force has been considered as equivalent aerodynamic stiffness matrix and equivalent aerodynamic damping matrix. 此外,通过变化把自激力的作用等效于作用在结构上的附加气动刚度和气动阻尼,采用单参数搜索的算法实现颤振分析。
Put forward a new method for long-span bridge buffeting analysis which using quasi-steady aerodynamic stiffness and unsteady aerodynamic damping based directly on wind tunnel test. 提出采用准定常气动刚度与基于试验的非定常气动阻尼进行气动修正的大跨度桥梁抖振计算新模型。
Labyrinth seal vibrates as nodal diameter along the circumference, the reducing of aerodynamics damping in some mode makes the stability of the system reduced, even makes the system unstable. 该装置沿周向作节径型振动，在某些模态时，密封气体的气动阻尼可能为负值，使整个系统稳定性下降，甚至出现不稳定状态。