The displacement of each mode is determined by a balance between the energy fed into the riser over lock-in regions and the energy dissipated by the fluid damping over the remainder.
各阶模态的响应位移通过平衡涡激锁定区域内柱体的输入能量与非锁定区内流体阻尼的耗散能量计算得到。
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The paper also discusses the fact when that certain precision requirements are met, the underdamping vibrator returns more quickly to the balance position than the critical damping vibrator.
Based on the story model of spatial member, the supplemental damping matrix, dynamic balance equation and relative energy balance equation of structures with viscous dampers are derived.