On this question, we established the structure-groundsill coupled oscillation model using the lumped parameter method. And we analyzed and inferred the formula of earthquake respond spectrum using this model. 就此问题出发,利用集总参数法建立了结构-地基耦合振动模型,分析推导了该模型下的地震反应谱公式。
The Effect of the Atmospheric 10-20 Day Oscillation on the Recurving Tropical Cyclones during SPECTRUM-90 SPECTRUM90时期大气1020天准周期振荡对热带气旋转向路径的影响
The effect of the 10-20 day oscillation in the atmosphere on the recurving typhoon tracks over the northWestern Pacific during SPECTRUM-90 has been studied. Results show that the effect is remarkable. 本文研究了SPECTRUM&90时期,大气10-20天周期振荡对西北太平洋转向台风路径的影响,结果表明,这种影响是显著的。
The regularity of the change of the unstable oscillation wave form and the structure of the power spectrum were analysed. 计算并绘出了非稳区域边界,分析了非稳振荡波形变化规律及其模结构。
Correlation between the Kilohertz Quasi-Periodic Oscillation and Energy Spectrum of Aql X-1 天鹰座X-1能谱和千赫兹准周期振荡频率的相关
The influence of some factors on pressure oscillation is studied by frequency spectrum analysis. 采用频谱分析方法,分析诸因素对压力振动特性的影响。
The free oscillation theory, response spectrum analysis theory and time-history analysis theory is introduced in this thesis. The dynamic characteristic and the antiseismic ability of railway long span deck-type reinforced concrete arch bridge are studied in this thesis. 本文介绍了自振特性分析理论、反应谱分析理论和动态时程分析理论,对铁路大跨度上承式钢筋混凝土箱形拱桥进行了动力特性分析以及抗震分析。
We observed an oscillation character of the photoelectron spectrum that it oscillates with the delay time. 同时我们还观测到了光电子谱随延迟时间的周期性振荡结构,并对其原因进行了讨论。