井下钻具金刚石止推轴承组振动特性研究 / Study on Vibration Characteristics of Diamond Thrust Bearing Pack in PDM assembly
- Resource Type
- Academic Journal
- Source
- 石油机械 / China Petroleum Machinery. 49(8):1-7
- Subject
金刚石 止推轴承组 振动模型 共振 周期性振动 锯齿形振动 - Language
- Chinese
- ISSN
- 1001-4578