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- New JCZ-B locomotive bearing fault diagnosis system can get fault characteristic from the vibration acceleration signal wich big noise and identify fault. 新型机车轴承故障诊断系统能从具有强背景噪声的机车轴承振动加速度信号中提取故障特征,实现机车轴承故障识别与故障类型自动辨别。
- Numerical simulation signal and vibration acceleration signal of a roughing mill main drive speed reduction unit have been decomposed by using empirical mode decomposition algorithm; each component has been carried on spectral analysis. 摘要运用经验模式分解算法对数值仿真信号及某轧钢厂粗轧机主传动减速机振动加速度信号进行了分解,从而得到若干个基本模式分量,对每个模式分量进行了频谱分析。
- Since a train s transverse acceleration signal is not only characterized by the low frequency but also affected by the train speed, they are nonstationary signals. 列车横向加速度具有较低频率特性,是受到列车运行速度影响而变化的非平稳信号。
- The Dempster-Shafer theory of evidence was applied to the fusing of the acceleration signals acquired by multi-sensor system at the same point of a structure. 采用证据理论(D-S)算法对多个传感器于同一点得到的加速度信号进行融合。
- The vibration acceleration signals at initial stage and steady stage in flowing granular media are tested,and the propagation of wave in the flowing field is analyzed. 试验测定振动助流时散体颗粒在初始阶段和稳定流动阶段的振动加速度信号,并对流动场中波的传播规律进行分析。
- Since acceleration signals with long passing path, loud noise and low Signal-to-Nosie Ratio (SNR) are used to diagnose rolling bearings, it is hard to find an effective analysis on rolling bearings. 由于当前滚动轴承振动诊断技术主要拾取加速度信号,该信号传递路径长、噪声干扰大、信噪比低,难以实现对滚动轴承的有效分析诊断。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
- Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
- A red lamp is often a danger signal. 红灯常常是危险的信号。
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
- An instrument used to measure acceleration. 加速计,测震仪用于测量加速度的仪器
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- The driver is winking his lights to signal a turn. 驾驶员打着一闪一闪的灯光信号表示要转弯。
- Everyone uncovered when the signal sounded. 信号响时,人人脱帽致敬。
- The train must stop when the signal's red. 信号机是红色时,火车必须停驶。
- A red lamp is used as a danger signal. 红灯用作危险信号。
- Send out a distress signal; the ship is sinking. 船正在下沉,发遇险信号吧。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries