The roll is increased and severer than shipping state when the frequency of wave is similar as the natural rolling frequency of ships.
船舶在系泊或低航速状态下，当涌浪周期接近船舶自然横摇周期时，船舶摇摆比航行时更为剧烈。
The result showed that the fluid fluctuated under rolling motion, and the frequency of the fluctuation was the same as the rolling frequency.
实验结果表明，流体在摇摆作用下产生波动；波动频率与摇摆频率一致。
The results show that heat transfer of natural circulation under rolling is enhanced. Heat transfer coefficient increases with rolling amplitude and rolling frequency increasing.
试验结果表明，摇摆运动下，自然循环的换热能力得到了加强，摇摆的频率和振幅增加，换热系数也相应增加。
A new hybrid robot with series-parallel mechanism adding a rolling massage part on the moving platform is presented because of the high frequency of the rolling method.
针对滚法手法滚动频率较高的特点，增加了滚法推拿头机构，进一步提出一种改进型并联与串联机构混联的推拿机器人。
The invalidation form of rolling bearing has been analysed in this text, and the pulsation frequency which is caused of rolling bearing malfunction also has been estimated.
对滚动轴承的失效形式作了分析，并对滚动轴承故障引起的轴承的脉动频率作了估算。
Manipulate frequency, the maximal stenosis and horizontal penetration parameter are the important parameters of the rolling massage in Chinese traditional medical massage.
手法频率，血管最大狭窄度和作用力水平渗透系数，是中医扌衮法推拿的重要参数。
The heat transfer coefficient of natural circulation flow increases with the rolling amplitude and frequency.
自然循环的流动的常数随着滚动幅度和频率而增加。
The natural frequency is one of the parameters characterizing the feature of the anti rolling tank.
水舱固有频率是刻划水舱特征的基本参数。
Finally, the torsion vibration nature frequency and torque amplitude factor of a rolling mill are calculated by using finite element method.
最后使用有限元法计算了某钢厂冷轧机主传动轴系的扭振固有频率和转矩放大系数。
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.
反映滚动轴承故障的特征周期信号处于较低频带内，容易被噪声淹没，难以检测。
This paper analyzes vibration signals of rolling element bearing in time-domain and frequency-domain, and puts forward the characteristic parameters to reflect the level of vibration and noise.
分别从时域和频域的角度分析了滚动轴承的振动信号，提出了反映滚动轴承振动水平和噪声水平的各种特征参数。
The dynamic characteristic of linear rolling guide affected by modal frequency and modal shape was studied.
为了提高结构的动态刚度，可通过修改直线滚动导轨的结构，使低阶模态频率相应提高。
Therefore, this article will take the signal energy in each frequency band as the feature vector to characterize the operation state of rolling bearing.
因此本文接下来采用每个频带里包含的信号能量作为特征向量，来表征滚动轴承的运行状态。
In this paper, the reducer in the main drive system of the rolling mill has been diagnosed successfully by using vibration intensity method and frequency domain analysis method.
利用振动烈度和频域分析方法，对轧机主传动系统减速机进行了故障诊断。
The results indicate that this method is able to extract effectively the rolling bearing fault feature frequency and improve the veracity of rolling bearing fault diagnosis.
结果表明：该方法可以有效提取滚动轴承故障特征频率，提高了轴承故障诊断的准确性。
The rolling transmission is driven by a vector frequency motor and floating roller system and PLC can automatically calculate the reel diameter, achieving the reeling tension conical control.
收卷传动采用矢量变频电机﹑浮动辊系统组成，并通过PLC自动计算卷径实现收卷张力锥度控制；
The time-frequency analysis method is widely applied to rolling bearing fault diagnosis due to it can simultaneously provide time and frequency domain information of a signal.
由于时频分析方法能同时提供振动信号的时域和频域信息，因而在滚动轴承故障诊断中应用最为广泛。
Propose wavelet packet decomposition frequency-band monitoring method, diagnose typical failures of rolling bearing, and extract eigenvector to prepare follow-up Neural network identification.
提出了基于小波包分解频带能量监测法，对滚动轴承的几种典型故障进行了诊断，并且提取特征向量，为后续的神经网络识别作准备。
Compared with other populations, the Bouyei nationality has a lower frequency of rolling, twisting and pointed tongue.
与其他群体比较，布依族卷舌率、翻舌率和尖舌率均较低。
Compared with other populations, the Bouyei nationality has a lower frequency of rolling, twisting and pointed tongue.
与其他群体比较，布依族卷舌率、翻舌率和尖舌率均较低。
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