1) isolation period
隔震周期
1.
An analysis on the higher-order resonance of duct-water by using CFD simulation verifies that actually almost no higher-order resonances can occur,and that only the natural sloshing frequency needs be avoided when determine the isolation period in the isolated design of aqueduct bridge.
因此,通过槽-水耦合体高阶共振特性的CFD仿真分析,对槽-水耦合体高阶共振特性进行概念修正,并得出在渡槽减隔震设计中,几乎不存在槽-水耦合体高阶共振影响,在选择隔震周期时,只需避开一阶水体晃动频率的结论。
2) second isolation period
第二隔震周期
1.
In this paper, the optimal ranges of the yield shear coefficient and the second isolation period are discussed by seismic analysis of structures excited by earthquake ground motions.
以耗能比例因子最大为目标函数,同时考虑隔震层最大滑移位移、残留位移和最大基底剪力系数等约束条件,分别输入不同场地不同幅值的地震波,探讨了屈服剪力系数和第二隔震周期的最优取值范围。
4) interval period
间隔周期
5) periodical vibration
周期震荡
补充资料：第二
1.复姓。见《通志．氏族四》。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条