复合随机振动系统,compound random vibration system
1)compound random vibration system复合随机振动系统
1.In calculation of the random response of un-damping linearcompound random vibration system,the secular term is avoided because the random response is divided into mean part and perturbation part.由于在计算过程中,没有将随机反应分解为均值部分和摄动部分,因此,采用直接模态摄动法求无阻尼复合随机振动系统的反应不存在久期项问题。
2)double random vibration复合随机振动
1.A new dynamic reliability assessment method fordouble random vibration systems is proposed, in which the randomness involved in the structural parameters and excitation is taken into account.建议了一类新的复合随机振动系统动力可靠度分析方法。
2.Based upon the pseudo-excitetion method, the complicateddouble random vibration problem of the MDOF structure is at first transformed to a set recurrence determinate vibration equations in frequency domain of the MDOF structure under the excitation of a harmonic loading.首先,基于虚拟激励法原理,把多自由度结构体系的复合随机振动方程转化为多自由度确定性结构体系复频反应的递推求解方程。
英文短句/例句
1.Study on Methods for Non-linear Compound Stochastic Vibration and Their Applications in Engineering;非线性复合随机振动方法研究及其工程应用
2.Adaptive Inverse Control on Random Vibration of a Vibration-Centrifuge System;振动—离心复合环境中随机振动的自适应逆控制方法研究
3.FINITE ELEMENT ANALYSIS OF RANDOM VIBRATION RESPONSES FOR MULTILAYER SHELL STRUCTURE APPLIED WITH COMBINED TEMPERATURE AND VIBRATION ENVIRONMENT温振复合载荷作用下多层壳结构随机振动响应有限元分析
4.PEM Based Random Vibration Analysis of Composite Structures and Its Applications in Aero/Astro-nautical Engineering;复合材料结构随机振动的虚拟激励法及在航空航天领域的应用
5.Research in the Vibration Response of the Thin Wall Composite Structure under Random Acoustic Loading复合材料薄壁结构在随机声载荷作用下的振动响应研究
6.Study on Acting Factors of Coupling Vibration of Vehicle-Bridge and Analysis of Random Vibration;车桥耦合振动影响因素研究及随机振动分析
7.Train-Track-Bridge System and Train-Bridge Stochastic Vibration;车—线—桥耦合系统及车—桥随机振动
8.Kinematics Study of Servo Compound Balance Beam Pumping Unit随动复合游梁平衡抽油机运动学研究
9.Al/Sn composite fabricated by mechanical vibration technology机械振动法制备Al/Sn复合材料
10.rated broad band random force额定宽带随机激振动力
11.Research on Vehicle-bridge Coupled Vibration for Two-way Curved Arch Bridge Under Random Traffic Flow随机车流作用下双曲拱桥车-桥耦合振动研究
12.The Random Vibration Study on the Damp Seat of Agricultrue Vehicle;农用运输车减振座椅的随机振动研究
13.Tower crane slewing compound vibration and dynamic load calculation塔式起重机回转复合振动及动载荷计算
14.Vibration Characteristic Analysis Technology of 3-D Woven Composite Structure;三维机织复合材料结构振动分析技术研究
15.Research on Spherical Ultrasonic Motor Using Longitudinal-Bending Hybrid Vibration Modal;纵弯复合振动模态球型超声电机的研究
16.A study of the interfacial microstructure of Al/Sn clad plate manufactured by mechanical vibrationAl/Sn覆板机械振动复合界面的显微组织研究
17.Research on Random Vibration Analysis and Active;随机、智能结构随机振动分析与主动控制研究
18.Vibration of waterpower set is complex,which includes me chanical vibration,hydaulic vibration,electric vibration and so on.水力机组的振动复杂 ,有机械振动、水力振动、电气振动等。
相关短句/例句
double random vibration复合随机振动
1.A new dynamic reliability assessment method fordouble random vibration systems is proposed, in which the randomness involved in the structural parameters and excitation is taken into account.建议了一类新的复合随机振动系统动力可靠度分析方法。
2.Based upon the pseudo-excitetion method, the complicateddouble random vibration problem of the MDOF structure is at first transformed to a set recurrence determinate vibration equations in frequency domain of the MDOF structure under the excitation of a harmonic loading.首先,基于虚拟激励法原理,把多自由度结构体系的复合随机振动方程转化为多自由度确定性结构体系复频反应的递推求解方程。
3)random vibration system随机振动系统
1.Serving as the question for study withrandom vibration system,narrow-hand and wide-band process for Gauss-stationary random vibration are discussed.以随机振动系统研究为课题 ,对平稳随机振动的窄带和宽带过程进行了讨论。
4)random dynamical system随机复动力系统
1.This paper is devoted to discuss the Julia set for therandom dynamical system formed by a set of rational functions.本文讨论有限个有理函数生成的随机复动力系统,得到Julia集有内点的充分条件 和必要条件。
2.Recently, Random dynamical system is an important part of this subject.当前，随机复动力系统的研究是此科学研究的一个重要组成部分。
5)composite vibrational system复合振动系统
6)nonlinear double stochastic vibration非线性复合随机振动
延伸阅读
随机振动随机振动stochasticvibration；randomvibration无法用确定性函数而须用概率统计方法定量描述其运动规律的振动。例如，车辆在高低不平路面上行驶、高层建筑在阵风或地震作用下发生的振动就是随机振动。随机振动的单次试验结果有不确定性、不可预估性和不重复性，但相同条件下的多次试验结果却有内在的统计规律。将每次试验结果yj（t）（j＝1，2，…，n）都看作一个样本，则它们全体（又称集合）Y[t]＝y1（t），y2（t），…，yn（t）构成一个随机过程，用以表示随机振动的响应。对一个随机过程，在任意时刻ti的各样本上取值是随机的，称Y（ti）为随机变量。随机变量定义在样本空间，其取值有一定的概率，用概率统计方法可得到以下各种信息。例如，用数学期望表示随机变量的平均值；用均方值表示随机变量平方的平均值；用标准差表示随机变量偏离数学期望的程度；用概率密度函数或概率分布函数表示随机变量在不同范围取值的概率。用积分变换（如拉普拉斯变换，傅里叶变换等）方法可得到随机过程的频率域或其他域的信息，从而可全面描述随机振动的激励和响应。随机振动的问题包括：①响应预测。已知激励和系统的物理参数，求响应，例如飞机振动是否会引起零部件损坏或人体不适。②系统识别。已知激励和响应，求系统的动态特性，例如易损物品的包装设计、坦克和汽车的悬挂设计等都须弄清系统的动态特性。③环境调查。已知响应和系统的动态特性，求激励，例如公路路面检验、地震谱测试等。
