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1)  characteristic length of acoustic vibration
声振动特征长度
2)  vibrational characteristic temperature
振动特征温度
3)  drive shaft length
传动轴特征长度
4)  vibration characteristics
振动特征
1.
This paper,combining with the cases of typical rubbings occurring in the three350MW and600MW units during start-up and normal running at working speed in the recent years,briefs the fault conditions,vibration characteristics,analysis and diagnosis process and on-site emergency trouble-shooting method.
结合近年3台350~600MW机组在启动和工作转速时发生的典型动静碰磨,介绍故障简况、振动特征、分析判断过程和现场应急处理方法,为碰磨故障的准确分析、诊断和认定及现场采取的紧急处理措施提供参考。
5)  vibration characteristic
振动特征
1.
The trend of vibration characteristic with diesel engine working time was analyzed according to 350 h~600 h examination data which were acquired by overall monitoring and recording the vibration of a certain diesel engine which was in the bench test.
通过对某型号柴油机台架考核试验进行全程振动监测记录,以考核期350 h~600 h数据为基础,分析了振动特征随柴油机使用时间的变化趋势。
2.
The paper, first of all, gives a comprehensive description of the vibration characteristic of rotary machine frame-type foundation.
首先对旋转式机器和框架式基础的振动特征进行了综合描述,并在此基础上就框架式基础动力特性的鉴定标准及优化,综述了作者的观点,进一步阐述了“动规第五章”的基本思路。
6)  vibration signature
振动特征
1.
The results of feature extraction indicate that the time-frequency analysis method is fit for the analysis of time-varying micro-Doppler signal,and the vibration signature of the moving target can be effectively extracted.
特征提取的结果表明:时-频分析方法适合于时变微多普勒信号的分析,能够有效地提取出运动目标的振动特征。
补充资料:点振子振动和点电极振子振动
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CAS号:

性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。

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