The damped blades is a nonlinear dynamic system, so its natural frequency can be influenced by external force.
与线性动力系统不同,阻尼叶片的频率不再是它的固有特性,其频率受外界激振力的影响。
The wind load has recently become a major concern in wind-resistant design of long-span roof structures due to their characteristics: light, flexible, lightly damped, low natural frequency and so on.
风流经过大跨屋面时,由于气流分离在屋面的大部分区域产生强大的吸力,并引起柔性屋面结构的振动,因此大跨屋面结构抗风设计需考虑风振响应和风振系数。
The wind load has recently become a major concern in wind-resistant design of long-span roof structures due to their characteristics: light, flexible, lightly damped, low natural frequency and so on.
风流经过大跨屋面时,由于气流分离在屋面的大部分区域产生强大的吸力,并引起柔性屋面结构的振动,因此大跨屋面结构抗风设计需考虑风振响应和风振系数。
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