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Yingpeng Xu

As seen in: MDPI
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Articles

Study on Collision Dynamics Model and Multi-Body Contact Forces of Ball Cage Flexible Joint Considering Clearance

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By Xiuxing Zhu, Xiaowei Yang, Yingpeng Xu
| MDPI
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Xiuxing Zhu , Fei Zhao , Xiaowei Yang , Yingpeng Xu , Peng Jia , Bo Zhou * and Shifeng Xue College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China * Author to whom correspondence should be addressed.
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Research on Multi-Body Collision Dynamics of Ball Cage Flexible Drill Pipe Considering Borehole Curvature

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By Xiuxing Zhu, Yingpeng Xu, Chenyang Mao, Weixia Zhou
| MDPI
Abstract : A ball cage flexible drill pipe is a new type of ultra-short-radius drilling tool, which consists of multiple flexible joints hinged together. During the drilling process, the flexible members will come into contact and wear, which reduces the efficiency of load transfer. The multi-body collision contact dynamics model was proposed to study the performance of the ball cage flexible drill pipe. The method considered the influence of the borehole curvature.
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