介绍了齿轮箱故障振动信号传统的时域、频域分析方法，并列举了一些不同故障所应用的分析方法。
The traditional time and frequency domain methods of vibration signals of gear box fault are introduced in this paper. And meanwhile this paper lists different applied fault analysis means.
通过轴承部位的隔振以及箱体采用高阻尼合金材料，齿轮箱的振动与噪声有了明显下降。
The vibration and noise level declined obviously through the isolation around the bearing as well as the adoption of damping alloy as the material of the gearbox body.
齿轮箱是舰船动力装置的一个重要部件，易出现故障，也是舰船振动与噪声的主要根源之一。
Gearbox is an important part of warship power plant which is easy to lead to faults, it is also one of the important sources of warship vibration and noise.
振动信号分析是进行齿轮箱状态监测与故障诊断的重要手段。
Vibration signal analysis is widely used in the state monitoring and failure diagnosis of the gear and rolling bearing.
为解决该问题，提出了利用频域特征和遗传编程对齿轮箱盖多类状态振动信号进行特征提取的方法。
The power spectral density of gearbox vibration signals is estimated by the periodogram from which original feature sets are derived.
对等时间间隔采样的齿轮箱振动信号，利用插值算法实现角域重采样。
Angle domain signals are resampled from time domain signals through using interpolation algorithm.
箱体振动极易导致齿轮的不对中，引起箱体的疲劳损伤破坏，降低齿轮箱的使用寿命。
The vibration of gear box can easily lead to wrong and the fatigue damage, reducing the life of gearbox.
针对齿轮箱升降速过程中振动信号非平稳的特点，将常规的阶次分析与双谱分析技术相结合，提出了基于阶次双谱的齿轮箱故障诊断方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order bispectrum technique was presented.
建立齿轮箱三维有限元模型，采用结构有限元法计算齿轮箱模态频率和振动响应。
Modal frequency and vibration response of the gear box are computed by structural FEM with a 3-d FE model.
对齿轮箱做振动测试和分析，通过模式识别找到齿轮箱损坏时呈现的特性，为齿轮箱故障诊断提供依据。
Vibration data acquisition and signal processing has been done for gear box, by criterion of fault model, we find the characteristic of fault gear box and make contribution to fault diagnosis for it.
针对齿轮箱升降速过程中振动信号非平稳的特点，将阶次跟踪、角域平均和幅值、相位解调分析技术相结合，提出了基于幅值和相位解调分析的齿轮箱故障诊断方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order tracking technique and Angle domain average technique were presented.
该系统适用于不同的传感器，使用不同的计算机硬件基础对不同型号的齿轮箱振动状态进行监测，通用性好。
This system is applicable to different sensors. It can monitor different types of gearbox vibration status correctly with different computer hardware, and th...
此外，因为一个复杂的齿轮箱系统被用来记录原始的振动信号，因而振动信号的处理就变得更加困难。
Moreover, the processing of vibration signals has become much more difficult because a full-of-oil complex gearbox system has been considered to record raw vibration signals.
该系统适用于不同的传感器，使用不同的计算机硬件基础对不同型号的齿轮箱振动状态进行监测，通用性好。
This system is applicable to different sensors. It can monitor different types of gearbox vibration status correctly with different...
对一台噪声较大的齿轮箱做了振动噪声试验，通过分析识别出噪声源为一对啮合的齿轮。
An NVH experiment is done on the gearbox and the noise source is found through the analysis.
对一台噪声较大的齿轮箱做了振动噪声试验，通过分析识别出噪声源为一对啮合的齿轮。
An NVH experiment is done on the gearbox and the noise source is found through the analysis.
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