推导双电动机同步振动激励力的数学表达式；
随振动激励次数的增加，土中超孔隙水压力增大；
Excess pore water pressure in soil increases with the increasing of excitations.
探讨了受水平、垂直和轴向振动激励下高速转子的进动与振动特征。
The whirl and vibration characteristics of high-speed rotors are investigated under the excitation of horizontal, vertical and axial vibrations in this paper.
所提出的方案能够在线振动激励幅值受限的情况下，辨识出各模型参数。
The scheme provided can obtain satisfying estimation results although the amplitude of linear vibration is constrained.
讨论了旋转机械源(振动激励源与噪声源)混合模式及源波形恢复的问题。
Such problem as mixing model of rotating machine sources (including vibratory and acoustical source) and their waveform restoration is discussed.
③液钽易发生振动失效，有些在振动激励下可能成为瞬息电势源（间歇短路）；
Liquid state tantalum capacitors are susceptible to vibration, and it is possible to produce transient electric potential;
重点讨论了旋转机械源（包括振动激励源与噪声源）混合模式及源波形恢复问题。
This paper focused on such problems as mixing models of sources of rotation machines (including vibratory and acoustical sources) and their waveform restoral.
基于刚体冲击振动模型，建立了浮放设备在振动激励条件下冲击响应分析的理论方法。
An approach to analyze the impact response of the free standing equipment to vibration excitations is presented on the basis of the impact vibration model of rigid block.
对内燃机缸盖系统的振动激励及表面振动信号的特性进行分析，建立了缸盖系统的振动模型。
This paper analyses the properties of the excitation and response of an engine cylinder head system and establishes the vibration model of the cylinder head system.
对五柱塞泵机组的振动激励源进行了分析研究，并对主要激励源振动频率进行了分析、计算；
This paper describes the basic characteristics of the various exciting sources of the pumping set, and analyses and calculates the vibration frequencies of the sources.
然而，目前基于功率谱均衡的数字式随机振动控制系统只能产生高斯分布的随机振动激励信号。
However, the digital random vibration control systems currently based on power spectrum fitting can only generate random vibration exciting signals with Gaussian probability distribution.
结果通过有限元仿真分析，发现添加振动激励后骨骼的应力分布和骨密度发生了变化，股骨部分部位骨密度增加。
Results By finite element analysis, we found vibration stimulation changed the femur stress distribution and improved bone mineral density in some parts of femur.
论述了单音片传感器测量液体粘度的原理及结构特点，它是利用压电陶瓷的自激振动激励单音片在液体中振动，从而测得液体粘度。
The measuring principle and structure characteristic of the monotone plate vibration sensor, which can be used to measure the viscosity of liquid, are described.
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.
根据所得结论，在简化的客车有限元模型上的适当位置安放次级声源，对因发动机振动激励引起的噪声进行车内有源消声的仿真分析。
Simulations about reducing noise excited by engine revolution are done by laying secondary source at proper places on the simplified finite element model of a passenger car.
文章建立了飞机壁板隔声的统计能量分析模型，研究了外部声场激励和振动激励通过飞机壁板的隔声量，预测了飞机舱室内的声场分布。
In this paper, a model of statistical energy analysis is used to study sound transmission loss of the aircraft cabin, and predict the sound field in the cabin.
计算结果表明，只要有通过试验获得的轮胎在滚动过程中所受到的真实激励谱，利用本文的方法即可对轮胎的振动噪声进行预报。
Calculation results indicate that tire vibration and noise can be predicted with actual excitation spectrum from tests according to the method presented in the paper.
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。
Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.
从整体动力特性可以看出，当高层建筑在地震动作用下产生振动时，屋顶钢塔在高层建筑屋顶层振动的激励下，产生二次型振动，发生显著的“鞭梢效应”。
With respect to integral dynamic properties the steel tower will have secondary vibration under the vibrational stimulation of high-rise building under earthquake to have remarkable whiplash effect.
利用常微分方程组理论在较一般条件下求出了线性有阻尼多自由度振动系统对任意外激励的精确响应。
Exact response of damped linear vibrating systems to arbitrarily excitation is obtained according to theory of ordinary differential equations.
显然，这种晃动力对由外激励诱发的结构振动起抑制或消减作用。
Certainly, the sloshing force will suppress or diminish the structural vibration induced by the external excitations.
导轨作为电梯的导向部件是电梯的重要组成部件，是使轿厢产生水平振动的主要激励源。
The guide rail, which ACTS as the main source exciting lateral vibration of cabin, is a key part of an elevator.
推导了固定四角薄型平板扬声器在单点激励下的振动方程，分析了在受激情况下的简正频率，并由简正频率方程导出其受力方程。
The vibration equation for thin flat plane loudspeaker with single point drive and four corners fixed is deduced and its simple harmonic vibration frequency in this condition is analyzed.
激振器是一种激励振动装置。
概率性抗震分析方法中的随机振动虚拟激励法。
Seismic analysis of probability includes: the random vibration and the pseudo excitations method.
用功率谱分析方法分析了在路面激励下柔性模型的振动特性。
The random vibration characteristic of the flexible model is simulated by using PSD method.
泵输出的周期性脉动流体的压力脉动，是引起流体谐振、激励管路振动和噪声的主要原因。
The pressure pulsation induced by the pumped periodic pulsation fluid is the main factor of causing fluid resonance and stimulating pipelines vibrations and noise.
张力腿平台的垂荡引起张力周期性变化，对张力腿的涡激横向振动起参数激励的作用，使其动力响应更为复杂。
Periodical variations of tether's tension caused by heaving oscillation of TLP play the role of a parametric exciter to vortex-induced vibration, and make it more complicated.
采用子空间模态分析法建立了适合一致地震激励下桥梁振动控制分析的瞬时最优控制算法。
The Instantaneous Optimal Control(IOC) algorithm suitability for the vibration control analysis of bridges under uniform earthquake excitation is proposed based on the subspace mode analysis method.
采用子空间模态分析法建立了适合一致地震激励下桥梁振动控制分析的瞬时最优控制算法。
The Instantaneous Optimal Control(IOC) algorithm suitability for the vibration control analysis of bridges under uniform earthquake excitation is proposed based on the subspace mode analysis method.
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