The response of a time-invariant linear system subjected to mono-source random excitations also retains this feature.
在同源激励作用下，常多数线性系统的响应仍保持激励的上述特点，充分利用这一特点可以节约计算工作量。
In the analysis of reliability of system under random excitations, the spectral moments of response are very important parameters.
提出了一种新的计算弹性-粘弹性复合结构随机响应的各阶谱矩的计算方法，它是一种时域复模态分析方法。
The cushioning design problems of a non - linear system under random excitations are studied by means of the average energy method.
利用平均能量法对非线性系统在随机激励下的缓冲设计问题进行了分析研究。
Because the suspension with non linear springs has no eigenfrequency, it could avoid the resonance under certain road uneven random excitations.
由于非线性弹簧悬架没有固有频率，因此避免了在外界激励下发生共振的危险。
In this paper, a new method of calculating random response spectral moments of elastic-viscoelastic combined systems under random excitations is presented.
提出了一种新的计算弹性-粘弹性复合结构随机响应的各阶谱矩的计算方法，它是一种时域复模态分析方法。
Furthermore, a finite element model is established to predict the responses under random excitations. The model and the numerical results are validated experimentally.
建立了随机振动响应分析有限元模型，并对模型进行了实验验证与结果分析。
Also an evaluation method of vibration comfort based on annoyance rate is proposed, the annoyance rate model of a vehicle system subjected to random excitations is obtained.
研究了基于烦恼率模型的振动舒适性评价方法，得到了车辆系统在受到路面随机激励时的烦恼率模型，进一步对振动引起的不满人数进行定量评估。
The presented results may provide the theoretical fundamentals for the description of random excitations in predicating the dynamic responses of structures to explosion seism.
所提出的研究结果为爆炸地震效应的结构响应随机振源描述提供了理论基础。
In this paper, the evolutionary random excitations acting on structures are assumed to be non uniformly modulated, i. e. the modulation functions depend both on time and frequency.
本文假定结构受到非均匀调制的演变随机激励，亦即其调制函数是时间与频率二者的函数。
Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.
基于随机振动的离散分析理论，推导出白噪声激励下结构动力响应的递推公式。
A discrete analysis. Method for random vibration of structures under the excitations correlated in time domain is discussed in this paper.
本文讨论动力系统在相关多激发作用下的随机振动离散分析方法。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
Seismic analysis of probability includes: the random vibration and the pseudo excitations method.
概率性抗震分析方法中的随机振动虚拟激励法。
After color noise as wind load is generated from white noise filter, wind-induced vibration of guyed masts is described as random vibration under white noise excitations.
经过对风荷载这种有色噪声进行白噪声滤波，桅杆结构的风致振动描述为白噪声激励下的随机振动。
The principal resonance of a second-order stochastic oscillator under combined harmonic and random parametric excitations is investigated.
研究了二阶线性系统在谐和与随机噪声联合作用下的主共振响应和稳定性问题。
The random response computation of structures under multiple-support excitations is a problem of time consumption.
多点地震动作用下结构随机地震反应的计算十分耗费时问。
In the second part, the stationary and non-stationary random response analyses of structures subjected to multiple seismic excitations are investigated.
第二部分结合自然科学基金资助课题“非平稳多源激励随机响应”，对复杂结构多点随机地震响应问题进行了系统的研究。
A random wave-theory analysis method is developed for the random seismic response analysis of layered soil sites under the P-and SV-wave excitations.
提出了P、SV波作用下层状土层地震反应分析的随机波动分析方法。
The principal resonance of a two-degree-of-freedom non-linear oscillator to bounded noise excitations is investigated, the phenomenon of random saturation is found.
研究了二自由度非线性系统在有界随机噪声激励下，系统响应的共振与随机饱和现象。
The random seismic response analysis of Nanpu Bridge under multi-support excitations of three-dimensional orthogonal earthquake motion was performed.
对南浦大桥进行三维正交地震动多点激励下的平稳随机响应分析。
The random seismic response analysis of Nanpu Bridge under multi-support excitations of three-dimensional orthogonal earthquake motion was performed.
对南浦大桥进行三维正交地震动多点激励下的平稳随机响应分析。
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