2) linear 2-DOF system
线性双自由度体系
1.
In order to analyze the dynamic response of linear 2-DOF system and identify the influence of all the factors on it,a new time-frequency method named Hilbert-Huang transform was applied in the time-frequency analysis of linear 2-DOF system,which was put forward by Norden E.
目的为了更好地分析线性双自由度体系的动力响应,识别各种因素对动力响应的影响。
3) two degree of freedom system
双自由度系统
4) two-degree-of-freedom system
二自由度体系
1.
The relationships between ductility demand and structural parameters of a two-degree-of-freedom system(2DOFS),such as the mass ratio,stiffness ratio of the upper to lower substructure,the yield level factor and vibration period of the lower substructure were analyzed.
以二自由度体系上下子结构的质量比、刚度比,下部子结构的屈服水平系数及自振周期等为计算参数编制程序,分析了这些参数以及场地条件对二自由度体系的位移及延性需求的影响规律,并回归得到了二自由度体系位移系数及延性需求的均值与标准差的计算公式,进而提出了二自由度体系概率地震位移延性需求分析的简化方法。
5) system with one degree of freedom
单自由度体系
1.
Based on response spectrum of system with one degree of freedom,response spectrum was calculated using analytical expression of trigonometric interpolation with great efficiency and high precision in calculation instead of segmented linear interpolation.
根据单自由度体系反应谱理论,采用计算量少、精确度高的三角插值解析公式法取代常用的分段线性插值法进行反应谱数值计算;结合工程爆破地震实测资料,对不同爆炸参量下产生的单段爆破震动信号进行反应谱分析,探讨爆炸参量对爆破震动反应谱的影响。
2.
Based on response spectrum of the system with one degree of freedom, response spectrum is calculated.
根据单自由度体系反应谱理论,采用计算量少、精确度高的三角插值解析公式法取代常用的分段线性插值法进行反应谱数值计算。
6) SDOF system
单自由度体系
1.
In order to estimate the maximum lateral inelastic displacement of frame structures by the inelastic displacement ratio spectra for SDOF systems, the modification factors of inelastic displacement ratio spectra for SDOF systems are also presented.
该文以按照我国规范设计的规则钢筋混凝土框架结构为研究对象,分析了IDA方法和Pushover方法建立结构层能力曲线的适用性,研究了框架结构的非弹性位移比谱,研究表明框架结构的非弹性位移比谱与单自由度体系的非弹性位移比谱总体趋势基本相同。
补充资料：残余自由度
分子式：
CAS号：
性质：回归分析中计算残余方差独立项的数目，其值为f=n-m-1，n是用来建立回归方程实验点的数目，m是回归方程中自变量的数目。
CAS号：
性质：回归分析中计算残余方差独立项的数目，其值为f=n-m-1，n是用来建立回归方程实验点的数目，m是回归方程中自变量的数目。
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