介绍一种采用两只压电加速度计作为敏感元件的二维同振型组合矢量水听器。
This paper reports a kind of two-dimensional combined vector hydrophone of resonant-column type in which a piezoelectric accelerometer are used as are sensing element.
进行结构地震响应反应谱分析，比较基于SRSS和CQC两种振型组合方式的计算结果；
Seismic accelerate response spectrum analysis is performed, and then we compare the differences of result by the two combination methods SRSS and CQC.
结果表明：罐内液体的晃动是长周期运动，并且是多阶振型的组合。
The result shows that the liquid sloshing appears as long period and combination of multi-modes.
它是由声压型水听器与振速水听器在结构上组合为一体而构成。
The hydrophone is constructed with a pressure hydrophone and particle velocity hydrophone, and is called combined hydrophone.
为了避免这样的误差，可以采用文中推荐的基于复振型的完全平方组合(CCQC)方法。
In order to avoid such errors, adopting complex complete quadratic combination (CCQC) method based on complex modes is a good solution.
将梁函数组合法应用到求解双壳系统的固有特性，得到了双壳系统有电磁刚度项时的固有频率和振型。
A combination method of the beam function is used for obtaining the natural characteristics of the double shell system.
提出了利用模态频率、模态振型和模态柔度组合指标作为神经网络修正的输入参数。
And we suggest that mode frequencies, mode shapes and mode flexibility are regarded as input parameters of neural network modification.
研究结果发现，组合共振区域内发生两种不同的拟周期运动和组合周期运动，而且第一振型次谐波共振曲线延伸到组合共振区域。
The results obtained show that several motions may occur in the region of combination resonance, including two kinds of quasi-periodic vibrations and combined periodic motion.
采用自同步定向激振理论设计，将重力自溜与振动出矿融为一体的YZZ型振动助流器，具有分节组合、大倾角、无侧板的结构特点。
YZZ vibration flow aiding machine is a newly developed ore drawing device, which is devised on the basis of the theory of autogenuous synchronization and directional vibro excitation.
电-磁振子组合型UWB天线集电振子和磁振子于一身，具有尺寸小、辐射效率高的特点。
The electric-magnetic vibrator combined UWB antenna (EMV-UWB) that constructed of electric and magnetic vibrator, has the characters of small size and high radiated efficiency.
建立曲轴连杆组合结构模型，进行有限元计算得出曲轴连杆组合结构的固有频率和模态振型。
Calculate the finite element mode of the complex combined structures in the load case and get the result of the theory calculation.
本文是用全息法测十字平板梁及盘—片组合件的振型和振频的实验总结。
This paper is a summing-up of the experiment in which the vibration modes and vibration frequences of a cross formed beam and disc-blade combinations are observed and measured by holography.
提出了整体频响函数的新概念(GFRF).以振型平方和的形式对全部频响函数进行加权组合，建立了多输入多输出模态参数的识别模型。
A concept of global frequency response function (GFRF) has been presented. The MIMO modal parameter identification modal has been established, based on the weighting sum of modal shape squares.
提出了利用模态频率、模态振型和模态柔度组合指标作为神经网络修正的输入参数。
The mode flexibility and the mode frequency were introduced to the input parameter of neural network system.
最后，对电-磁振子组合型UWB天线及其阵列进行了实验测量，实验测量结果与数值模拟结果基本一致。
Finally, the experiments of the EMV-UWB antenna have been done, and the results accord with the numerical stimulation well.
说明了用低阶振型和经优选后的振型向量结合的方法进行组合结构、框架结构损伤诊断的可行性。
Which showed the fassility of using low order frequency and certain mode of vibration or their deriv…
说明了用低阶振型和经优选后的振型向量结合的方法进行组合结构、框架结构损伤诊断的可行性。
Which showed the fassility of using low order frequency and certain mode of vibration or their deriv…
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