1) harmonic stochastic excitation
谐波随机激励
2) harmonic excitation
谐波激励
1.
By means of Kanai-Tajimi seismic model,displacement response,the power spectral density of displacement response and time-dependent variance of rotor s displacement response under random seismic and harmonic excitations for a rotor-bearing system with four degrees of freedom are analyse.
应用虚拟激励法和数值积分法,采用Kanai-Tajimi地震模型,对一个四自由度非对称的刚性转子-轴承系统在地震激励和谐波激励联合作用下的位移响应、位移响应谱密度及响应时变方差进行了分析。
2.
Considering the maximum steady response of the original structure under harmonic excitation of given frequency range as the objective function, the optimum side stiffness between the added structure and the original structure is obtained by golden section method.
文中将原结构简化成一等效单自由度体系，而将加层部分结构作为一被动控制质量块，以原结构在一定频率范围内的谐波激励下稳态位移响应的最大幅度为目标函数，将加层结构与原结构间联接的侧向刚度为优化设计变量，采用黄金分割法，求解了加层结构与原结构间侧向刚度的最优值。
3) 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
5) random excitations
随机激励
1.
Precise time-integration method with augmented matrix for structural responses to evolutionary random excitations;
受演变随机激励结构响应的增维精细时程积分法
2.
A review of various methods of response analysis for nonlinear marine structures under random excitations;
随机激励下非线性海洋结构物响应分析方法研究进展
3.
In studying the reinforcement of steel girder bridges in the project of raising train speeds of China抯 railway, a spatial dynamic analysis model for train-bridge systems under random excitations was established.
通过建立随机激励下的车桥耦合系统的空间动力模型,研究了提速条件下上承式钢板梁的加固问题。
6) Van der Pol equations/ stochastic excitations
范德波尔方程/随机激励
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