... w (1)周期T:经过一个周期T后,质点又回到了原 来的位置,因此周期T称为自振周期或固有周期( natural period),单位为s。 (2)圆频率 :自由振动的圆频率(circular frequency), 它是反映系统动力特性的一个重要 参数,单位为rad/s。
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...幅: Amplitude of vibration 初始相位角: initial phase angle 无阻尼自由振动是简谐振动 28 28 结构的自振周期(natural period) ) sin( ) ( a t a t y ) 2 ( t y ) ) 2 ( sin( a t a ) 2 sin( a t a ...
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natural period of vibration 自振周期 ; 掁动的自然周期
natural period of soil site 地基固有周期 ; 地基基础抗震 ; 动力机器基础地基固有周期
natural period of oscillation 固有振动周期
fundamental natural period 基本自振周期 ; 基本自振周期的
natural period of pitching 纵摇固有周期
natural period of oscillations 固有振动周期
a natural period 固有周期
The concept of isolation is to prolong natural period and provide higher damping level to traditional structure to avoid resonance with the relatively short period components dominant in earthquake ground motions.
隔震通过延长结构自振周期、增加阻尼而避免与短周期为主的地震发生共振。
参考来源 - 组合隔震与三维隔震(振)理论及试验研究·2,447,543篇论文数据,部分数据来源于NoteExpress
It is important to select reasonable natural period of high-rise building in seismic design.
设计地震区的高层建筑时,选择结构的适宜自振周期是十分重要的。
According to axially natural period, the relation of the dynamic magnification factor vs the linearly loading time under linearly loading is deduced and presented.
推导并给出了轴向固有周期下线性加载动力放大系数随线性加载时间的变化关系。
Therefore, in the design and research of FPSO in shallow water, the effects of the shallow water depth should be taken into account for determining the natural period of motions.
因此,在浅水fpso的设计和研究中,关于运动固有周期参数的给定必须考虑水深的影响。
So according to Wellhausen, the early period of ancient Israel must have been characterized by a free, more natural form of religion, an intimate relationship with God, unencumbered or unsullied by the legalistic cultic obsessions of priests and cult.
据Wellhausen,古代以以列早期,一定是以自由自然的宗教形式为特色的,与上帝关系亲密,不受任何阻碍,牧师和仪式痴迷于遵从律法,造成阻碍。
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