1) judder
[英]['dʒʌdə(r)] [美]['dʒʌdɚ]
位移，不稳定，强烈振动，冲击
2) strong vibration
强烈振动
1.
Stressing the strong vibration of 4m~3 skip unloading process,through effective means to detect the track processing and installation error by careful measurement and analysis,the problems were found out,and specific measures were taken to solve the problems fundamentally.
针对4m~3箕斗卸载过程中出现的强烈振动,通过有效的检测手段在使用现场对曲轨的加工和安装误差进行了仔细的测量和分析,找出了问题并采取针对性措施,从根本上解决了问题。
3) unstable vibration
不稳定振动
1.
4 rotor-bearing unstable vibration of 300MW turbine units is ana- lyzed combined with a great deal of local test.
在对国产300MW汽轮机低压转子与轴承系统的结构特点分析基础上,结合大量现场试验研究,分析了300MW汽轮机4号轴承不稳定振动的特点。
2.
These vibration appearances are unstable vibration caused by low stiffness of LP-rotor bearing pedestal, low-frequency vibration of bearing №1 caused by the changes of bearing dynamical height, and contact rubbing vibration caused by HP/IP rotor vibration increase and LP-cylinder dynamic offset, and HP-rotor.
在现场试验研究的基础上 ,根据国产 30 0MW汽轮机组的结构特点 ,分析了该型机组产生的几种特有的异常振动现象 :低压转子支承刚度低引起的不稳定振动 ,轴承动态标高变化引起的 1号轴承低频振动 ,高中压转子振动爬升 ,汽缸中心位置动态偏移引起的摩擦振动 ,某一特定流量指令下的高压转子不稳定振动。
4) vibrational instability
振动不稳定性
5) vibro impact
冲击振动
1.
The Hopf bifurcations of a two degree freedom vibro impact system in non .
应用该方法分析了一类两自由度冲击振动系统周期运动 Ｈｏｐｆ 分叉的存在性，并用数值方法得到了该冲击系统的拟周期响应及其向混沌的演化过
6) impact vibration
冲击振动
1.
Research of control and DAQ in experiment of impact vibration;
冲击振动实验的控制和数据采集研究
2.
The burglar alarm with intelligent impact vibration that is controlled by single chip microcom-puter was introduced- Comparing the alarm with other, this burglar alarm was of distinguishing features , such as high intelligent, enhanced guarding function and alarming exactly.
本文介绍一种由单片微型计算机控制的智能化冲击振动防盗报警器。
3.
Using the impact vibration testing architectural engineering structure intensity with a measuring vibration method of laser self-mixing interference,through simulating impact vibration signal,the vibration frequency and the oscillation amplitude relations are presented.
利用冲击振动检测建筑工程结构的强度,用激光自混频干涉测振的方法,通过对模拟冲击振动信号的理论分析和计算,给出振动频率与振幅的关系,为判断可能引起建筑物损坏的振动提供依据。
补充资料：位移
| 位移 displacement 点的位置变动，用连接先后两个位置的有向线段表示。如图所示，动点瞬时t位于Q点，瞬时t＋Δt位于Q′点，矢量QQ′表示动点从t时刻开始在Δt 时间间隔内的位移。它等于Q′点的矢径与Q点的矢径之差，即Δr＝r(t＋Δt)－r(t)。与此同时，动点在Δt时间间隔内由Q点沿轨迹运动至Q′，所经过的路程是弧长  (标量)。位移和路程是两个不同的概念。当Δt很小时，位移矢量的模和路程的差为高阶小量；当Δt→0时，两者相等。在直线运动中，位移可用代数量表示。
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条