The sources of forced vibration in the machine tool are found by means of the free running experiment.
通过空运转试验查明了机床受迫振动的振源。
Then, the free vibration and the forced vibration of the rotor are obtained by means of Runge-Kutta method.
然后，采用Runge - Kutta方法求解了多种参数下的自由振动和强迫振动。
It is considered that the vibration of the bottom bearing damper belongs to forced vibration of nonlinear system.
认为下阻尼器在离心机运行时的振动是非线性系统的受迫振动。
Magnetoelastic forced vibration of a thin round plate subjected to mechanical loading in magnetic field is studied.
研究了电磁场环境下机械载荷作用圆形导电薄板的磁弹性强迫振动问题。
An iterative computation method for nonlinear forced vibration equation on helicopter blade aerodynamic load is given.
介绍用迭代方法求解直升机桨叶气动载荷中的非线性强迫振动方程。
In this paper, the vertical forced vibration of dynamic foundation on viscoelastic layered half space was studied in detail.
本文较深入地研究了层状粘弹性半空间上刚性圆形基础的垂直振动问题。
In this paper, suppression of chaos in a forced vibration system with a square term by resonant periodic perturbations is studied.
本文研究了用与受迫力谐波共振的周期摄动抑制含二次非线性项受迫振动系统中的混沌。
The harmonic responses and forced vibration are analyzed and the results are verified by the system's torsional vibration testing.
系统谐响应分析和强迫振动分析结果通过传动系统扭振实验得到了验证。
Under the simple harmonic vibration, the stable forced vibration of multiple-degree-of-freedom system is analysed by using ANSYS software.
运用ANSYS软件分析多自由度系统在简谐激励作用下的稳态受迫振动。
According to coupling principle and excited force of shafting system, a model of coupled torsional-axial forced vibration can be constructed.
根据刚度耦合原理，并考虑轴系强迫激励进而建立了扭纵耦合强迫振动模型。
The forced vibration of pendulum is described by four-dimensional phase space and the fourth order autonomous ordinary differential equation.
本文用四维相空间和四阶自洽常微分方程描写了单摆的受迫振动。
To get an exact solution of the forced vibration of the beam bridge under the load of moving vehicles is difficult in the engineering design.
桥梁在移动车辆荷载作用下的振动分析是工程设计中有待进一步解决的问题之一。
If mass or stiffness perturbation is considered to be a harmonic excitation, one has obtained a forced vibration equation to the original structure.
将质量和刚度摄动看成是对原结构的简谐激励，获得原结构广义坐标的受迫振动方程。
The first ten natural frequencies, damping ratios and mode shapes of the dam were measured through steady forced vibration test using multiple vibrators.
用多台起振机进行稳态强迫振动试验，测定了该坝前十阶自振频率、阻尼和振型。
The principle of vector method of single plane for spot balance of rotor has been present by forced vibration of single freedom system and rolling vector.
用单自由度系统的受迫振动和旋转矢量阐述了转子现场动平衡的单平面矢量法的原理。
The test and analysis show that the shimmy is a forced vibration and can be restrained by controlling excitation source and increasing steering system damping.
试验及分析表明，该车摆振主要为强迫振动，通过控制激振源、增大转向系统阻尼可抑制摆振。
Compared with forced vibration tests, the ambient vibration test is more convenient and it has enough accuracy for the small amplitude response characteristics.
与强迫振动试验相比，环境振动试验比较简单、方便，所确定出的小振幅水平下的木塔结构动力特性具有足够的精度。
External elastic damping support, if designed reasonably, may obviously improve the natural or forced vibration response characteristics of bearing rotor systems.
设计参数合理的外弹性阻尼支承可以明显改善轴承-转子系统的固有特性及强迫振动响应。
In this paper, we consider the problem of cha OS control in a class of forced vibration system with both square and cubic nonlinear terms and uncertain parameters.
研究了一类同时含有平方项和立方项，且带有不确定性参数的受迫非线性振子混沌控制问题。
By using separation of variables and double Fourier series, we obtain a solution to the initial-boundary value problem of the forced vibration of this rectangular membrane.
利用分离变量法和二重傅里叶级数的方法，得到了矩形膜的受迫振动初边值问题的解。
Through the theoretical model and milling experiment they discuss the condition of producing forced vibration and chatter in milling process and the chatter characteristics.
通过所建理论模型及铣削试验讨论了铣削过程中强迫振动、颤振的产生条件及特点。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
The exact solution of linear, undamped forced vibration response is developed, and the damped forced vibration as well as the self-excited oscillation are obtained numerically.
推导了弹性轴向行进索无阻尼线性受迫振动解，用数值方法求得有阻尼行进索受迫振动和自激振动响应。
The solution of the blade forced vibration equation is investigated, so that the pheNomena appeared in the tests such as dynamic response of the blade and beat can be well explained.
还研究了工作叶片强迫振动方程的解，用它阐明了试验中出现的叶片动态响应和拍振等现象。
According to different driving ways of vibration, the sectional model test methods can be classified into two major categories, i. e. free-vibration method and forced-vibration method.
按照振动驱动机制不同，节段模型试验方法可分为自由振动法和强迫振动法两大类。
According to different driving ways of vibration, the sectional model test methods can be classified into two major categories, i. e. free-vibration method and forced-vibration method.
按照振动驱动机制不同，节段模型试验方法可分为自由振动法和强迫振动法两大类。
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