Through vibration frequency spectrum analysis of no-tillage seeder in field, its vibration characteristics were obtained.
通过对播种机的田间振动频谱分析，得到了它的的振动特征。
According to the result of spectrum analysis of vibration signals, frequency characteristics are acquired and various fault signs are gained.
根据振动信号频谱分析结果，提取频谱特征，获取各种故障征兆信息。
Through frequency spectrum analysis, the causes of sudden vibration of the unit are found out, and confirm that has the feature of oil film vibration, and then is eliminated.
对机组突发性振动的成因进行了频谱分析，确认油膜振荡的振动特征并加以消除。
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