加速振动的信噪比远比稳态振动大得多。
The ratio of signal to noise for acceleration vibration is far greater than that of steady vibration.
轧机第五倍频程颤振表现为高频微幅的自激稳态振动。
Fifth-octave mode chatter is most likely to occur in the form of self-excited steady vibration.
结果表明,竖向阻尼参激对水平稳态振动的影响不大。
The result displays that the horizontal steady-state vibration is little affected by vertical Chulomb damping parametric excitations.
结果表明,竖向阻尼参激对水平稳态振动的影响不大。
The result displays that the horizontal steady-sta te vibration is little affected by vertical Coulomb damping parametric excitations.
本文介绍引起船体稳态振动的柴油机及螺旋桨激振力的计算方法。
This paper introduces the calculating methods of diesel engine and propeller induced forces which often result trouble in ship hull steady vibration.
给出了输入杆具有恒定转速的高速弹性机构稳态振动响应的一种高效解法。
An efficient numerical method is presented for determining the steady-state vibration response of high-speed flexible mechanisms operating with constant input rotating speed.
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.
对水下由环形肋板连接的有限长双层柱壳在点激励下的稳态振动特性进行了研究。
The characteristics of vibration in a submerged double shell connected by annular plate drived by a point force in inner shell is studied.
本文用静线弹性问题的开尔文解作为权函数导出了稳态振动问题的边界积分方程。
The Kelvin solution to the static linear elastic problem is used as the weighted function to derive the boundary integral equation for steady-state vibration problems.
在海洋平台上观测到了冰致结构的稳态振动,以及冰力和平台响应问的频率锁定现象。
The phenomena of ice-induced steady state vibration and frequency lock-in between ice force and response were observed on offshore platform.
小波变换具有很好的时域和频域局部化特性,为以非稳态振动为特征的信号提供了有效的分析手段。
Wavelet transform possesses excellent characteristic of time frequency localization, and provides an effective measure for analysing signal causing unstable vibration.
小波变换具有很好的时域和频域局部化特性,它对以非稳态振动为特征的信号提供了很好的分析手段。
Wavelet transformation possesses excellent properties of time-frequency localization and thus provides an effective means for analyzing signals characterized by unstable vibration.
基于饱和地基多孔介质理论,考虑了水土的惯性及耦合作用,研究了横观各向同性饱和地基的稳态振动问题。
Based on the saturated porous medium's theory, the inertia force of both the soil and the water is considered; the stable vibration problem of transversely isotropic saturated soils is studied.
比较了单自由度线性机械系统在稳态振动、随机振动、运输试验(汽车与火车)以及冲击试验中响应的大小。
This Paper Compared the responses for a Single-of-freedom linear mechanical System to stationary Vibration, random Vibration, transport (motor Uehicle and freight train) Shock testings.
结果发现:随着冰速的增加,可以出现三种不同冰力形式并分别引起结构准静态振动、稳态振动和随机振动响应。
The results illustrate that three ice force modes, quasi-static, steady-state and random vibration, could be formed with the increase of ice speed.
应用该公式可以求出线性和等价线性化的非线性振动系统的精确稳态均值和均方响应。
By using of this formula, the accurate mean and mean square responses of a linear or an equivalent linearized nonlinear vibration problem can be obtained.
通过最优控制理论设计弹性稳态器,抑制由于刚体运动而激发的弹性振动。
To suppress the simultaneous elastic vibration in movement, an elastic stabilizer is designed by using the LQR control method.
目的比较和分析稳态噪声、脉冲噪声、脉冲噪声与振动联合作用对作业工人听力的影响。
Objective To analyse the effects on occupational workers hearing loss caused by steady state noise, impulsive noise and segmental vibration.
对有局部非线性的船舶推进轴系振动稳态响应进行理论和试验研究。
Theoretical and experimental research on steady vibration response of shipping propulsion shafting with local nonlinear characteristics are done.
结果表明,当反应时间较大时,反应速度是以指数衰减或小阻尼振动的方式趋向稳态。
The result indicates that the enzyme reaction velocity tends towards steady state with the form of index attenuation or small damped vibration when reaction time is longer.
对有非线性迟滞特性联轴器的船舶推进轴系振动稳态响应计算方法进行研究。
A method which is used for calculating steady vibration response of shipping propulsion shafting connecting with a coupling with nonlinear hysteresis characteristics are studied.
本文给出了采用复阻尼理论时正交各向异性连续板强迫振动问题的稳态介。
In this paper, the solution of steady forced vibration for continuous orthotropic plates is given on the basis of complex damping assumption.
并给出计算任意组合钻柱系统的轴向振动稳态响应的一般方法,提供不同测量条件下分析钻柱轴向振动状态的不同方法。
The calculation method of drilling string axial vibration is given. Meanwhile, the different methods of analysing drilling string axial vibration state are supplied in different surveying condition.
波形失真度是稳态正弦标准振动台计量中影响计量校准精度最主要的因素。
Waveform distortion is a primary factor affecting the measure precision of steady sine standard vibration calibration system.
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.
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.
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.
考察了亚谐响应幅值系数对阻尼的敏感性及亚谐振动谐波成分的渐近稳态性。
The asymptotical stability of the subharmonic resonances and the sensitivity of the amplitude responses to the variation of damping coefficient were examined.
该模型充分考虑了由摇摆振动引起的附加惯性力的作用,属非稳态三维波动层流问题。
The model, which includes the effect of additional inertia forces by vacillation, describes a problem of unsteady three-dimension wavy laminar falling film absorption.
在识别中采用了实模态识别法,识别出前13个模态参数,并与稳态激振、环境振动及有限元计算进行了比较,结果是比较符合的。
Real modal parameter identification has been used and 13 modes are identified. The obtained modes are compared with the results from steady exciting, ambient vibration and FEM calculation.
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