This article focuses on the problem of excessive fundamental frequency vibration caused by flexible field dynamic imbalance in a certain type of non-road diesel engine within the rated speed range.The research accurately determined the natural frequency of the crankshaft by hammering method,and combined with field dynamic balance testing technology,optimized and adjusted the crankshaft shaft system to achieve the expected vibration control indicators.This work not only successfully solved the fundamental frequency vibration problem of this model,but more importantly provided testers with a theoretical basis and practical guidance for field dynamic balance testing technology,forming a set of effective testing methods and processes.The research results of this article provide valuable reference solutions for similar problems in diesel engine shaft balance.
关键词
非道路柴油机/挠性现场动不平衡/基频振动/振动控制
Key words
Non-road diesel engine/Flexible field dynamic unbalance/Fundamental frequency vibration/Vibration control
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