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Vibration modal test of a drilling rig

CHANG Yu\|lian 1, JIA Guang\|zheng 1, YANG Chao 1, GUO Jun\|jie 2, ZOU Long\|qing (1 Dept of Petroleum Machinery, Daqing Petroleum Institute, Anda, Heilongjiang 151400, China;2 Department of Oil Pipeline, Daqing Petroleum Administration, Daqing 160  
A simplified drilling rig vibration model is created for using the vibration modal analysis technique to study drilling rig dynamic characteristics. The test of a ZJ 15 drilling rig vibration model is done in the oil field. The testing data is processed and analyzed, and some modal parameters that could coincide with the rotational frequency of the power and transmission equipment in drilling rig are found. They are the reasons for causing violent vibration of the drilling rig. So the diesel engine cannot be set on the drilling rig substructure, and the drilling rig prevents it from working at 4 grade rotational speed.
【CateGory Index】: TE922
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