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.

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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.

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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.

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