瞬态振动对系统的影响是不可忽略的。
The influence of the transient vibration on the system is not obviously neglectable.
从而实现机组三维转速谱阵图瞬态振动特征的自动提取和故障识别与诊断。
Therefore, the automatic extraction of features of waterfall diagrams, and the identification and diagnosis of fault are realized.
根据瞬态振动理论和重复冲击下响应迭加效应，计算单自由度包装件的响应加速度及其最大值。
The response acceleration and its maximum of a package with SDOF have been calculated according to the transient oscillation theory and response reiterative effects under impetus of repetitive shocks.
从时间域和频率域两个角度对土密实度瞬态振动测试信号进行了分析，提取了信号的特征参量。
The signal of instant vibration testing for soil compactness is analyzed both in time domain and frequency domain. Some feature parameters reflecting the characteristics of the signal are extracted.
在稳态试验的基础上，对转子过前两阶临界转速的振动抑制进行了研究，并实施开环瞬态振动控制。
On the basis of steady state tests, the vibration suppression of the rotor through the first two critical speeds has been done.
柔性结构在快速定位过程中容易产生长时间的瞬态振动而影响定位速度和精确度，因此必须对其进行主动控制。
Flexible structures can have a long transient vibration when positioned quickly, which is harmful to their positioning speed and accurate tracking ability.
通过实验研究了该阻尼器通以不同电流时对转子系统瞬态和稳态振动的抑振效果。
The vibration characteristics of a rotor system with passive electromagnetic damper under different current are studied experimentally.
应用两自由度振动理论，根据冲击具有瞬态运动的特点，以冲床为例，研究冲击基础的隔振设计。
Use two freedom vibration theory, base on impact has instant motion characteristic, use puncher example, study the isolating vibration design of impact base.
为智能叠层板自由振动问题和带有压电块的叠层悬臂梁的瞬态响应等问题提出了一种新的半解析法。
A new semi-analytical solution for the natural vibration of smart laminated plates and the transient response of the laminated cantilever with piezoelectric patch was presented.
振动力场的引入，有利于缩短充模时间，提高瞬态模腔压力。
Introduction of vibration force field is beneficial to shorten, filling time and increase transient cavity pressure.
本文首先对圆柱壳的稳定性、自由振动、瞬态和稳态动力响应研究进行了简要回顾和评述。
Brief reviews about elastic stability, free vibration, transient dynamic response and harmonic dynamic response of circular cylindrical shells are given first.
提出基于小波尺度图重分配的信号瞬态特征检测方法和瞬时能量估计方法，并应用于轴承在多种轻微故障状况下的振动非平稳特征的检测与表示。
The singal transient feature detection represent method, and a transient energy evaluation method are used based on the reassigned scalogram for the vibration non-stationary feature representation.
最后，利用已开发的系统建立了屏蔽盒类机箱整机和单个模块的CAE模型，分别进行了模态分析、瞬态分析和随机振动分析。
Finally, the CAE models of shield box and single module are established with developed system, and modal analysis, transient analysis and random vibration (PSD) analysis are executed.
本文对一种国滞非线性基础隔振的主从结构模型用瞬态最优控制法进行振动控制研究。
Instantaneous optimal control of a model of primary-secondary structure with hysteretic and nonlinear base-isolation is studied in this paper.
文中给出用数值积分瞬态模拟对轴承—转子系统非线性振动进行计算分析的方法。
In this paper, a method of transient numerical simulation to simulate and analyze the nonlinear vibration of rotor bearing system is presented.
文中给出用数值积分瞬态模拟对轴承—转子系统非线性振动进行计算分析的方法。
In this paper, a method of transient numerical simulation to simulate and analyze the nonlinear vibration of rotor-beating system is presented.
文章说明了利用瞬态激振，即锤击法，研究燃气轮机振动特性的试验及分析方法。
This paper deals with a testing and analytical method for studying gas turbine vibration characteristics by use of transient excitations, i. e. hammering method.
讨论了一般机械在瞬态过程和稳态过程中所呈现出的不同振动特性，提出了基于瞬态过程分析机械故障诊断的必要性。
This paper analyzes the necessity of fault diagnosis in transient procedure and discusses the different vibration characteristics in transient and stable procedures.
利用ANSYS有限元软件对采煤机截割部进行了瞬态动力学分析，从时间响应的角度研究振动位移规律。
Transient dynamic analysis for the cutting part of shearer by finite element software ANSYS has been made, the law of vibration displacement is studied from the perspective of time response.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
动态特性分析包括固有振动特性分析，谐响应特性分析和瞬态响应特性分析。
The dynamic analysis include natural vibration analyse, harmonic response analyse and transient response analyse.
仿真和实验结果表明，该瞬态平衡方法在有效降低转子不平衡振动的同时，减少了平衡过程中的起车次数。
The simulation and experimental results show that not only the residual vibration but also the frequency of run-ups in the balancing process can be reduced effectively.
利用有限元对机柜分别进行了模态分析、随机振动分析和瞬态动力响应行为的分析和研究。
Then dynamic response of the enclosure structure is studied with the function of ANSYS for modal analysis, random vibration (PSD) analysis and transient analysis.
本文建立了基于ANSYS有限元分析软件的光学振动失调物理模型，通过瞬态动力学分析得到了反射镜在振动激励下的位移响应。
Physical model of misaligned optical system under interference vibration was developed based on ANSYS and the dynamic response of the reflector was obtained by transient dynamic analysis.
采用液压振动装置来代替四轮偏心式机械振动装置，建立结晶器重量及振动单元模型，应用ANSYS 对系统的模态分析及瞬态分析计算。
Creating the model on weight and vibration unit of the mould and using the commercial software ANSYS, modal and transient of vibratory system were analyzed and calculated.
从试验角度研究非线性振动系统的稳态与瞬态响应是一种切实可行的方法。
It is a practical and effective method to study about the static state and transient response to non-linear vibration system on the basis of experiments.
与传统的FFT相比极大熵谱法具有频率分辨率高，适于短时瞬态数据处理，而且能给出振动幅值与频率和时间三者的关系。
Compared with traditional FFT method, MESE not only has higher resolution but also fits the processing of transient data, so, it can show the relation of amplitude to both time and frequency.
饱和砂土中振动孔压波动特性的研究是建立瞬态孔隙水压力模型的基础。
The fluctuating characteristics of excess pore water pressure (EPWP) are the basics to establish the transient EPWP model.
饱和砂土中振动孔压波动特性的研究是建立瞬态孔隙水压力模型的基础。
The fluctuating characteristics of excess pore water pressure (EPWP) are the basics to establish the transient EPWP model.
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