Railway wheel damping is acknowledged as one of the potential measures to reduce rolling noise.
铁路车轮阻尼被公认为是减少滚动噪声的可能措施之一。
Aimed at the rolling noise which is the main source in railway noise, lots researches are done in this field.
本文就是针对轮轨滚动噪声这一铁路噪声的主要来源进行研究。
The noise at lower part of railway cars consists of rolling noise, aerodynamic noise and driving device noise.
铁道车辆下部噪声主要由滚动噪声、空气动力噪声和机器噪声组成。
Simulation need less manpower and material resources than experiment, and it is more convenient to analysing the effect of each parameter to rolling noise.
与实验相比,进行仿真分析不但能节约人力、物力,而且能方便地分析各种参数对滚动噪声的影响,对降噪具有重要意义。
Currently measures in control of wheel-rail rolling noise mainly by improving and optimizing the rail structure to achieve, but rarely considered the impact of the foundation under rail.
目前控制轮轨滚动噪声的措施主要是通过改善和优化轨上结构来实现的,而很少考虑轨下基础对噪声的影响。
Aluminum alloy shutter door is no longer like the traditional rolling shutter door switch, it reduces the noise to a minimum will not cause noise problems.
铝合金卷帘门不再像传统卷帘门的开关那样,它把噪音降到了最低不会使人产生噪音的困扰。
The sensor also works in a rolling shutter mode with Correlated Double Sampling (CDS) to reduce noise and increase dynamic range.
该传感器还致力于减少噪音和提高动态范围在一个相关双采样(CDS)的滚动快门模式。
This method also may further promote applies to has the strong noise, the strong impact rolling bearing, the reciprocation machinery and so on in the diagnosis work.
该方法还可进一步推广应用到存在强噪声、强冲击的滚动轴承、往复机械等的诊断工作中。
This paper presents the methods to distinguish abnormal vibrational noise for rolling bearing of motor, analyzes the cause of formation, and presents the method to remove it.
提出了电动机滚动轴承引起异常振动噪声的识别方法,分析了异常振动噪声形成的原因,提出了消除异常振动噪声的方法。
The reasons of rolling bearing producing vibration and noise were analyzed, the technology measures of reducing vibration and noise were introduced.
分析了滚动轴承产生振动和噪声的原因,介绍了减振降噪的的工艺措施。
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。
The function of the optimum sound pressure level of the rolling bearing noise is established especially for applications to engineering.
为了在工程上应用,特别建立了最优滚动轴承噪声声压级函数。
Sliding bearing instead of the conventional rolling bearing, making pump working more smoothly with very little vibration and noise.
用滑动轴承替代常规电机滚动轴承,使泵具有运行特别平稳,振动噪音极低。
He took the roaster behind the counter, away from view, and made a lot of noise rolling it around the ice as if he were searching for just the right chicken. He then showed the same bird to her.
他把烤鸡拿到柜台后,在人们看不见的地方,做了很多噪音,把烤鸡在冰里翻滚,仿佛他是在找那只合适的鸡。
Due to strong noise in vibration signals of rolling mills, it is very difficult to identify their fault location and to extract their feature.
由于轧机振动信号受到强烈的噪声干扰,给故障特征的有效识别和准确提取带来很大困难。
On the basis of experiment, this paper exposes a method of applying ANCT (Adaptive Noise Cancelling Technique) to failure diagnosis of rolling bearing of rolling mill.
在试验的基础上,本文提出了把自适应除噪技术(ANCT)用于轧钢机滚动轴承故障诊断的方法。
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。
Installation of door closers and rolling type hinge, so that can ease the doors open automatically, and without any noise and collisions.
加装闭门器和滚动轴承式合页,使门扇能够轻松自如自动开启,且无任何杂音和碰撞。
The vibration and noise of the rolling bearing is one of the basic properties of rolling bearing. Some advanced countries in bearing industry have made deep and systematic study on it at higher level.
滚动轴承的振动与噪声已成为轴承的基本特性之一,各轴承工业发达国家均进行了大量深入系统地研究,现已达到相当高的程度。
As I write I hear rolling thunder, moaning wind: I am watching within me, sensing noise, explosions, storms moving across the land over time.
当我写作时,我听到隆隆的雷声,哀号的风:我正在观看我的内心,感觉出噪音,爆炸声,暴风雨随着时间过去越过大地。
Described are the sound source detection method for the aerodynamic noise on Shinkansen rolling stock and relevant noise reduction measures.
介绍了新干线车辆空气动力噪声的声源探测方法及相应的降噪措施。
If the rolling dies are not preciously designed or the machining operation is not properly implemented, there is an influence on the profile accuracy, noise and service life of the workpiece gears.
若辊模设计不合理或加工方法不当,将影响工件齿轮的齿形精度,产生噪声,降低使用寿命。
The abnormal noises produced in the running of low noise rolling bearings made in China are serious quality problems.
运转中的异常声音是国产低噪声轴承的重要质量问题。
The local projective noise reduction and demodulated resonance method for fault diagnosis of low speed rolling bearing are presented in this paper.
本文将局部投影降噪算法结合共振解调技术对低频轴承进行故障诊断。
Whole three-phase core is made of three curved silicon steel belt material through rolling, without clearance and seam. The tank has features of low loss, low exciting current, low noise and others.
整个三相铁芯由三条曲线硅钢带料卷制而成,中间无气隙及接缝,油箱采用低损耗、低激磁电流、低噪声等特点。
The relationship between the vibration and the noise of rolling bearings is studied based on the grey system theory.
以灰色系统理论为基础,通过实验研究6201和6203轴承振动与噪声的灰色关联性。
The results of data processing demonstrate that, the relationship between vibration and noise of rolling bearings is not obvious, and it has significant uncertainty.
实验数据处理结果表明,轴承振动与噪声的关系不明显,并具有很大的不确定性。
The results of data processing demonstrate that, the relationship between vibration and noise of rolling bearings is not obvious, and it has significant uncertainty.
实验数据处理结果表明,轴承振动与噪声的关系不明显,并具有很大的不确定性。
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