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为考核机车变流器模块抵抗环境振动的能力,需要按标准GB/T 21563—2008中的1类B级量级进行随机振动试验,而该标准是根据欧洲铁路大量实测数据统计归纳得出的,与我国机车实际振动环境存在差异。对机车变流器模块在京广线和兰新线上进行实测、归纳和计算,得到了随机振动PSD曲线和加速度均方根值,并证明与标准的谱型和量级均具有一定差异性。
In order to assess the ability of a locomotive converter module to resist environmental vibration, a random vibration test according to Class 1, Class B, of the standard GB / T 21563-2008 is required and the standard is based on a large number of measured data of the European railway , And our country locomotive actual vibration environment is different. The locomotive converter module is measured, summarized and calculated on the Beijing-Guangzhou line and the Lanxin line. The random vibration PSD curve and the rms value of acceleration are obtained, and it is proved that there is some difference with the standard spectrum type and magnitude .