为使第二阶模态频率避开发动机一阶惯性力频率，文中对扶手架的质量、刚度进行局部修改，结果使手把振动有较大幅度的下降。
To separate these frequencies, we make a local modification to mass and stiffness of the handle and results in the vibration on the handle of walking tractor to reduce considerably.
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。
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.
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。
It is found that added mass of cylinder increases with length and radius, and is independent on the vibration frequency.
空气弹簧具有变刚度特性，其固有振动频率要比钢板弹簧低得多，且不随汽车承载质量的变化而改变。
Air spring is characteristic of variable stiffness, its natural vibration frequency is much lower than that of leaf spring and will not change with load of vehicle.
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 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.
同时，发动机转速的恒定也使液压泵输出排量稳定，进而保证了行走速度和振动频率的稳定，提高了压实质量。
At the same time, constant engine speed stabilizes output displacement of hydraulic pump and then stabilizes travel speed and vibratory frequency in turn, so that compaction quality is increased.
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 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.
变频振动下料机构是变频振动系统的重要执行部件，其激振频率直接影响制造质量和生产效率。
Cropping mechanism is a key component for variant frequency vibration cropping, and its excited frequency directly affects manufacturing quality and production efficiency.
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。
It shows that the modal shape and mode frequency are highly coupled with the VIV response of a Marine riser with low mass ratio.
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 effect of spring mass on oscillation frequency and elastic constant is discussed by solving the wave equation.
进而应用瑞利方法得到了薄板水中振动频率与真空中振动频率、无量纲附加虚质量增量之间的关系。
Then the relationship among vibration frequency of the plate in water and that in vacuo and the Nondimensionalized Added Virtual Mass Incremental (NAVMI) is obtain by utilizing Rayleigh method.
模态是结构的固有振动特性，每一阶模态都具有特定的固有频率、阻尼比、振型、模态刚度和模态质量。
Mode is structure's inherence characteristics, each mode has specifically resonant frequencies, damping values, mode shapes, mode stiffness and mode mass.
通过调节腔场的长度、圆频率，以及镜子的质量、振动频率等宏观物理量，可以获得不同的量子态。
Via adjusting the coupling constant of cavity and mirror, as well as the vibration frequency of mirror, different quantum states have been obtained.
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。
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.
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'.
应用本文方法，可以求解各种边界条件下的阶梯梁及带集中质量和弹性支承梁的横向振动固有频率。
This method is suitbale for various non uniform beams with different constraints at their ends such as stepped beams, continuous variable beams, and beams with elastic bears or concentrated masses.
讨论了在弹簧振子质量不可忽略的条件下，弹簧振子系统振动固有频率的精确解。
This paper derives the precise solution about the inherent frequency of the mass-spring system when the mass of the harmonic-spring is not negligible.
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。
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.
通过比较台面上不同部位上几个关键结点耦合前后平均加速度值的变化，计算出了各个频率下的附加质量，并对附加质量给振动台设计带来的影响进行了研究。
Comparing with the accelerations of two different conditions, additional masses are calculated. At last, the influences carried by additional mass during the designing of vibration table are analyzed.
结果表明梁的自振频率，荷载的行驶频率和荷载与梁质量比对梁的振动都起着重要的作用。
All results show that the beam dynamic behavior is tied up with these factors: frequency of beam, moving frequency of the load and the ratio of vehicle unit mass to beam unit mass.
指出水的效应等价于一个附加的分布质量，因此，水中柱体的振动频率低于无水时柱体的振动频率。
It points out that the effect of water is equivalent to an attached distributive mass. Therefore, the frequency with water is lower than that without water.
分子中具有红外活性的两个原子间的振动频率与化学键的力常数及折合质量有关。
The vibrant frequency of carbonyl is concerned with the force constant and convert mass of the carbonyl.
引入运算符号，导得带任意个集中质量的梁弯曲振动频率方程和振型函数新的解析表达式。
By means of a symbol of operation, the new analytical expressions of the frequency equation and the modal function of lateral vibration of a beam with lumped masses were derived.
从总体上看，振动频率对焊接质量的影响要比振幅显著，所以应优先对振动频率寻优。
Overall, the vibration frequency exerts more influence on the welding quality than the vibration amplitude. Therefore, it should give priority to the optimization of the vibration frequency.
乘坐舒适性的评价指标为乘坐质量沿铅垂方向的稳态高斯随机振动过程的加速度均方根值，并以人体的频率敏感性作为权因子。
Opti-mal comfort is defined as a minimum root mean square value of a stationary Gaussian random process weighted with respect to human sensitivity.
最后以附着了任意个弹性质量的圆膜为例给出了其频率方程的具体计算公式，并用数值计算了对称附着两个刚性质量的圆膜的固有振动频率。
The frequency equation is derived by considering the dynamics of the attached elastic masses. Finally, for an example, the calculation formulae of the frequency equation fo...
最后以附着了任意个弹性质量的圆膜为例给出了其频率方程的具体计算公式，并用数值计算了对称附着两个刚性质量的圆膜的固有振动频率。
The frequency equation is derived by considering the dynamics of the attached elastic masses. Finally, for an example, the calculation formulae of the frequency equation fo...
应用推荐