So if now I hang on it a mass of one kilogram, I can calculate the period of one oscillation, and one over the period F is the frequency F, and I believe that is something like 38 hertz.
如果在上面,悬挂1公斤物质，我能够计算出,振荡的周期，1除以周期,等于频率，我相信,等于大概38赫兹。
In this paper, a method for shifting the natural frequency of a structure to a desired value by modifying the local stiffness and mass parameters is proposed.
本文对修改结构局部刚度和质量参数，从而使其具有给定固有频率的动力修改问题提出了一种求解方法。
ResultsIn case of various axial loads and mass ratios, various curves between dimensionless fluid flow velocity and dimensionless complex frequency are plotted.
结果得出了不同轴向载荷和不同质量比下的无量纲流速与无量纲频率的关系曲线。
The equivalent viscous damping ratio and the equivalent natural frequency are obtained by comparing the system with a purely linear, spring-mass-damper system of single freedom.
通过和单自由度线性弹簧-质量-阻尼系统进行比较，得到该带裂缝梁结构的等效自然频率和等效粘滞阻尼比。
The analysis and test show that this method can raise sway frequency and decrease sway mass, but the structure is complex.
分析和试验表明，这种方法能提高推进剂的晃动频率，减小晃动质量，但结构复杂。 主题词。
The model is used to understand a series of formulae, for example, mean single tooth stiffness, gear pair mesh synthesizing stiffness, effective mass, nature frequency and critical rotating speed.
根据这一振动模型，推导了齿轮副的平均单齿刚度、单对轮齿啮合综合刚度、有效质量、固有频率与临界转速等一系列计算公式。
The resonance frequency shifts of piezoelectric quartz crystal sensors in contact with the liquid are influenced mainly by liquid properties and mass loading on the quartz crystal surface.
液相环境下振荡的压电石英晶体传感器的谐振频率变化主要受液体性质和表面质量负载的影响。
The vibration frequency and effective mass of strong - and weak-coupling bound polaron was derived by using improved linear combination operator and unitary transformation methods.
采用改进的线性组合符和么正变换方法导出强、弱耦合束缚极化子的振动频率和有效质量。
It shows that the modal shape and mode frequency are highly coupled with the VIV response of a Marine riser with low mass ratio.
该模型的计算结果表明，立管的模态振型、模态频率与涡激振动响应高度耦合，并且对于低质量比的情况尤为明显。
The effects of the angle of the tilted support, the frequency ratio and mass ratio of the system on the response of acceleration and displacement were discussed.
讨论了系统支承角、系统频率比以及系统质量比等对易损件加速度及位移响应的影响规律。
The effect of spring mass on oscillation frequency and elastic constant is discussed by solving the wave equation.
通过求解弹簧中纵波的波动方程，讨论了弹簧质量对振子的振动频率及弹簧劲度系数的影响。
The numerical results indicate that the higher-order mass matrices have a negligible influence on the fundamental frequency, but they affect the frequencies of higher mode vibrations considerably.
数值实验结果表明：高阶质量矩阵对横向振动基频及低频的影响可忽略不计，但它们对高阶横向振动频率有很大的影响。
The oscillating frequency of the ESPS decreases linearly with increasing adsorption mass of the surfactant.
本方法原理为ESPS的振荡频率随表面活性剂吸附质量的增加线性的下降。
The severe numerical instability in complex frequency modal mass identification from frequency response function makes it difficult to identify physical parameters.
利用频响函数识别复频率模态质量存在着严重的数值计算不稳定性，给物理参数的识别造成困难。
This paper probes the features of the effect on the external stores jam flutter characteristics due to the variation of parameters of vibration frequency, flutter freedom and generalized mass.
探讨了由于振动频率、颤振自由度、广义质量等参数的变化对机翼—外挂干扰颤振特性影响的一些特点。
The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force.
介绍了一种利用检测漩涡频率和横向变动升力的方法测量气体质量流量的漩涡式气体质量流量计。
Structural FE analysis on an integral bus is performed, in which optimal design of multiple performance objectives of structural strength, vibration modal frequency and mass is researched.
对某全承载式大客车进行了结构有限元分析，研究了该客车结构强度、振动模态频率、质量等多个性能目标的优化设计问题。
The practice application expresses that effective modal mass could be helpful to find natural frequency and vibration shape.
应用表明用有效模态质量进行模态识别，可以有助于找到尾轴架系统的固有频率和振型。
The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
The geophone spurious frequency is modeled as the resonance of the planer motion of spider spring by carrying moving mass.
检波器的假频是借助支撑运动体对支座弹簧的水平运动作为谐振来模拟的。
After these, the structural natural frequency changes a little, but the grinder bed mass reduces greatly, thus the obvious result is achieved.
优化后，结构固有频率及刚度变化不大，而床身质量却大大下降，取得明显效果。
A new signal processing method for Coriolis mass flowmeter is proposed, which is based on the recursive DTFT algorithm and considers the contribution of negative frequency.
基于DTFT递推算法，提出了一种计及负频率影响的科里奥利质量流量计信号处理方法。
The control gains which are tuned according to road frequency are used to the velocity feedback of the sprung mass and the unsprung mass.
该控制律在簧载质量和非簧载质量的速度反馈上引入了时变的反馈增益，该反馈增益随路面激励主导频率的变化而实时调整。
The results show that the vibration frequency and effective mass of the strong - and weak - coupling bound polaron will increase with increasing the absolute value of the Coulomb potential.
结果表明，束缚极化子的振动频率和有效质量随库仑势的绝对值的增加而增大。
It is found that added mass of cylinder increases with length and radius, and is independent on the vibration frequency.
发现圆筒结构附加质量随圆筒结构的长度增加、直径增加而增大，与振动频率无关。
This paper gives two kinds of calculation methods of natural frequency of a mass-even elliptic column which oscillates in miniamplitude on a plane, obtains two formulas of natural frequency.
本文给出了匀质椭圆柱体在平面上作无滑动的微幅摆动之固有频率的两种计算方法，得到两个固有频率的计算公式。
The results indicate that the DMTMD provides better effectiveness and robustness to the change in the frequency tuning than the multiple tuned mass dampers (MTMD) with equal total mass.
数值结果表明，双层多重调谐质量阻尼器(DMTMD)比多重调谐质量阻尼器(MTMD)具有更好的有效性和对频率调谐的鲁棒性。
By modal stiffness matrix, modal mass matrix and modal frequency, shaft units of simulator is designed. The former three steps natural characteristics are identical with the real units'.
依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。
By modal stiffness matrix, modal mass matrix and modal frequency, shaft units of simulator is designed. The former three steps natural characteristics are identical with the real units'.
依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。
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