Under the condition of high construction rigidity, its first high order type of vibration was of skipping type which had relatively high inherent frequency, and rather big amplitude.
在高的结构刚度值条件下，其第一高阶振型为跳跃式，有较大的固有频率值，振幅比也大。
The conclusion shows that the calculated results of blade intrinsic vibration frequencies bear no relation to the common fix states for the first seven-order blade vibration.
得到的结论是：对于叶片的前七阶振动，通常的叶片固支状态对叶片自振频率计算值几乎没有影响。
The first-order mode and the first eigenfrequency of the pier can be obtained easily and precisely by the impact vibration test method, from which three indexes such as the chang.
利用冲击振动试验法可以准确得到桥墩的一阶振型和一阶频率，利用这两个参数可以构造出一阶振型比、特征参数、一阶曲率模态差三个指标。
In chapter 4, in order to ascertain its inherent eigenvalue and corresponding main vibration, modal analysis is first implemented for the jib structure of deck crane.
在第4章中先对甲板吊臂架结构进行模态分析，确定结构的固有频率和相应的主振型。
The first 20th order natural frequencies and vibration modes of the single layer spherical dome are obtained, and its vibration law is also analyzed by using subspace iteration method.
结合一工程实例，采用子空间迭代法求出了该网壳结构的前2 0阶自振频率和振型，分析了其振动规律；
In this paper, a traveling-wave type Ultrasonic Motors is studied, which makes the use of two orthogonal first order free-free bending vibration modes of a cylinder.
对圆柱体弯曲型行波超声电机进行了研究。该电机利用圆柱体的两个正交的一阶自由-自由弯曲模态进行工作。
When the optimal inductance and resistance of the piezoelectric shunting circuit are obtained, the peak of the first order vertical bending vibration peak can be reduced obviously.
压电分流电路的电感值与电阻值取最优值时，可明显降低车体一阶弯曲振动峰值。
When the optimal inductance and resistance of the piezoelectric shunting circuit are obtained, the peak of the first order vertical bending vibration peak can be reduced obviously.
压电分流电路的电感值与电阻值取最优值时，可明显降低车体一阶弯曲振动峰值。
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