本文对传动系多工况二维随机载荷谱的统计方法进行了分析与研究。
The analysis and research on the statistical method for two-dimensional random load spectrum of vehicle transmission are presented in this paper.
采用机械阻抗原理，给出了轮轨系统随机激振力功率谱密度函数的理论计算方法。
A theoretical method of the PSD of random excitation force in Wheec-rail system is advanced on the principle of mechanical impedance.
本文提出了一些对冲击以及随机响应谱进行分析的方法。
This paper presents some method of the shock and random response spectrum analysis.
基于随机分形理论，采用分数布朗运动模型，应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
根据矩阵谱分解的思想，提出多点任意相关的随机载荷识别方法。
The identification of multi-point arbitrary correlated stationary random load is presented in the paper in the light of the method of matrices spectrum decomposition.
基于平稳随机振动理论，推导了一般阻尼结构体系反应谱组合方法，以满足大跨度桥梁等结构抗震设计的需要。
A spectral combination rule is proposed based on the theory of random vibration of structures for the need of aseismic design of Bridges, etc.
采用随机数值模拟方法和功率谱密度函数生成随机轨道粗糙度。
The random rail roughness samples are yielded using random numerical method and power spectral density function.
本文将虚拟样机技术与计算机随机模拟方法结合，探讨了通过计算机仿真的方法获得桥式起重机主梁应力幅谱的基本途径。
The paper expounds a way to get stress amplitude spectrum of main girders of overhead traveling crane through computer simulation combining virtual prototype technology and computer random simulation.
与传统的方法相比，无需对随机信号的协方差函数的功率谱进行分解，不受限于协方差函数的功率谱是否为有理式。
Compared with the traditional method, it does not need disassembling the power spectral densities of stochastic signal covariance and is not bound to if the power spectral densities are rational.
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。
In this paper, a new method of calculating random response spectral moments of elastic-viscoelastic combined systems under random excitations is presented.
提出一种在平稳随机噪声中检测暂态信号的循环双谱切片方法，同时给出仿真结果。
The method of detection on transient signal by the slice of cyclo bispectrum in stationary random noise is proposed in this paper, simulation results are presented also.
叙述了平稳随机过程理论的基本定义，以及运用实谱分解方法模拟平稳随机过程的原理。
The basic definitions of stationary random process and the principles of using spectrum decomposing to simulate the stationary random process were given.
该文针对风速随机变化的特性，在风速统计特性研究的基础上，用自回归滑动平均(ARMA)方法建立了具有一定功率谱密度特性的风速模型。
This paper deals with stochastic characteristic of the wind speed, and gives an auto-regressive moving-average (ARMA) model for wind speed subjected to particular power spectral density.
采用随机模拟方法，通过编程产生目标路谱的平稳随机路面不平度序列，并通过数理检验进行验证。
Use stochastic simulation, create the plainness sequence of the stable stochastic road surface for the target road spectrums with programming, and use logistic test to verify.
采用反应谱法，时程分析方法以及随机振动方法分析了拱桥在一维和多维地震激励下的地震响应。
Through spectrum analysis, time-marching analysis and radom vibration analysis, the seismic performance of arch bridge under one-dimension and multi-dimension excitation has been analyzed.
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。
In the analysis of reliability of system under random excitations, the spectral moments of response are very important parameters.
从空间路面频率谱出发给出了模拟随机路面谱的方法。
The procedure for deriving the stochastic road irregularities is given with the application of space frequency domain road model.
提出了一种新的谱随机有限元分析方法——递推求解方法。
A new spectral stochastic finite element method to solve mechanical problems involving material variability and random load is proposed.
利用随机振动方法分析了钢筋混凝土框架结构的水平随机地震激励下结构响应的功率谱。
With the random vibration method, the response spectrum of structure under the earthquake action of level axis directions are obtained.
应用分析表明，这是进行有谱广义平稳随机过程参数估计的一种有效的优化方法。
The analysis to its application indicates that this is an effective optimized method to parameter estimation of the rographic generalized stationary random process.
用该方法分析了一个缺口试件在随机谱载下的裂纹形成寿命，结果比常规的有效系数和雨流法更接近试验结果。
The fatigue life of a notched specimen under random loading spectrum is evaluated by means of the present method.
分析了随机信号对开关函数功率谱密度特性的影响，据此提出随机脉宽调制技术的实用化设计方法。
The influence of random signals on the power spectral density characteristic of switching function is studied and a practical design of randomized PWM is proposed.
鉴于此，介绍了风速单参数海浪谱，并提出了对波高及周期统计的模糊分级统计方法，在此基础上给出了全面分析海洋环境载荷不确定性的模糊随机海浪谱及载荷谱的制作方法。
The authors introduce a wind speed single parameter sea wave spectrum, present the fuzzy grading statistic method of wave height and period, and thereby give the method for making the f…
鉴于此，介绍了风速单参数海浪谱，并提出了对波高及周期统计的模糊分级统计方法，在此基础上给出了全面分析海洋环境载荷不确定性的模糊随机海浪谱及载荷谱的制作方法。
The authors introduce a wind speed single parameter sea wave spectrum, present the fuzzy grading statistic method of wave height and period, and thereby give the method for making the f…
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