1) Periodic vibration source
周期性震动源
2) periodic vibration
周期性震动
3) intermittent shock load
周期性震动负荷
4) governor hunting
调速器周期性震动
5) endogenous periodicity
内源周期性
6) long-period ground motion
长周期地震动
1.
Urgency of the study of long-period ground motion;
长周期地震动衰减关系研究的迫切性
2.
This paper investigates long-period ground motion characteristics of the 1999 Jiji(Chi-Chi), Taiwan, mainshock and aftershocks on the basis of a lot of the high quality digital strong motion records.
用丰富的高质量数字强震记录对台湾集集大地震及余震的长周期地震动特性进行了研究。
3.
At present,the research on the attenuation relationship of long-period ground motion and the long-period response spectrum is not well developed and there are not many research projects about long-period seismic response for high-rise structures subjected to long-period ground motion.
目前,对长周期地震动衰减关系和长周期反应谱的研究尚不成熟,对长周期地震动作用下高层建筑结构的地震响应研究还比较少。
补充资料：周期性
周期性
periodicity
①事物反复有规律的变化，每一次变化称为一个周期。如生理状态下的心动周期、呼吸周期、月经周期等。②疾病过程中临床症状多次重复出现的规律性。如周期热、溃疡病周期性上腹部疼痛等。
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