1) random critical seismic excitation
随机临界地震激励
2) random critical seismic response
随机临界地震响应
1.
In this paper, ran-dom critical seismic analysis is used to evaluate the random critical seismic response of a .
随机临界地震响应分析法作为概率性分析法的一种,是指在地震激励均方值已知的条件下,找出使响应方差最大的临界地震激励。
3) seismic excitation
地震激励
1.
Active vibration control based on linear matrix inequality for rotor system under seismic excitation;
地震激励下基于LMI的转子系统振动主动控制
2.
Response controlling characteristics of mega-sub controlled structural system under seismic excitation;
巨-子型有控结构体系在地震激励下的响应控制特性
3.
Response analysis on linear imbalanced rotor-bearing system under nonstationary random seismic excitation;
不平衡线性转子-轴承系统的非平稳地震激励响应分析
4) earthquake excitation
地震激励
1.
Equations of motion of a rotating machinery system for calculating its vibration response to seismic excitation is established by using a beam model with Coriolis effects taken into account when the base is subjected to an earthquake excitation with rotational components.
首先建立旋转机械系统地震激励下的运动微分方程,然后推出了包括3个平动分量和3个转动分量、表现为非平稳随机过程的地震激励表达式。
5) seismic excitations
地震激励
1.
Performance of variable dampers for vibration control of structures under seismic excitations is investigat.
研究了地震激励下结构半主动变阻尼控制的有效性。
2.
Seismic response analysis of a long-span cable-stayed bridge under random seismic excitations with spatial variations,including travelling effect, incoherence effect and local site effect, was made with stochastic method.
研究结果表明 :与一致地震激励相比 ,地震动的空间变化特性可以使斜拉桥的地震响应改变 30 % ;同时考虑行波效应、部分相干效应时的地震响应接近于仅考虑行波效应时的地震响应 ;行波效应对斜拉桥地震响应的影响明显大于部分相干效应的影响 ;在加速度均方根相同的随机地震作用下 ,斜拉桥在软场地条件下的地震响应明显大于在硬场地条件下的响应 ,中等场地条件下的地震响应介于两者之间 。
3.
Although it has been demonstrated that as two typical examples of conventional semiactive control systems,active variable stiffness(AVS) and active variable damper(AVD) may be effective for vibration control of buildings subjected to seismic excitations,the latest research results show that obvious deficiencies still exist in both of them.
尽管已有的研究证明,传统的半主动变刚度控制系统和变阻尼控制系统均可以有效地抑制结构在地震激励下的动力反应,然而最新的研究显示二者仍然存在明显的不足之处,需要进一步深入研究。
6) random excitation
随机激励
1.
Dynamic reliability sensitivity analysis for stochastic structures under random excitations;
随机激励下随机结构动力可靠性灵敏度分析
2.
Nonlinear dynamic analysis of aluminum honeycomb sandwich board based on random excitation
随机激励下铝蜂窝夹层板非线性特性研究
3.
By means of impulse response and matrix perturbation method of nonlinear system, the author finds that the response statistics of a nonlinear system are subjected to random excitation.
利用线性系统脉冲响应函数的概念，采用矩阵摄动法对非线性系统受随机激励的响应进行分析，得到了求解此类问题的一般途径，给出算例，并讨论了其可信度和精度
补充资料：随机数和伪随机数
随机数和伪随机数
random and pseudo-randan numbers
随机数和伪随机数【喇间佣1 al川牌”山一喇闭..m.山娜;cJI了，a如曰e”nce，口oc月卿成.以叹“c月a】 数亡。(特别，二进制数:。)，其顺序出现，满足某种统计正则性(见概率论(probability Uleory)).人们是这样区别随机数(mndomn切mbe比)和伪随机数(PSeudo一mn由mn切mbe岛)的，前者由随机的装置来生成，而后者是用算术算法构造的.总是假设(出于较好或较差的理由)所得(或所构造)的序列具有频率性质，这些性质对于具有分布函数F(z)的某随机变量心独立实现的一个序列来说是“典型的”;因此人们称作根据规律F(习分布的(独立的)随机数.最经常使用的例子为:在区间【O，l]上均匀分布的随机数亡。，尸(亡。
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