The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
An accurate modal superposition method for calculating frequency response function of viscoelastically damped structures is put forward.
本文建立了粘弹阻尼结构频响函数计算的高精度模态展开法。
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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