Kinematics and Mechanical Properties Analyses on Vibration Converter of Intelligent Damper for Drill Strings
Year: 2013
Author: Xiaohua Zhu, Chunlin Lai
Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 5 : pp. 671–687
Abstract
Taking vibration converter of intelligent damper for drill strings as the study object, this paper analyzes the influential factors of motion state of the ball and conducts an explicit dynamics simulation by establishing a mechanics model of vibration converter. The study basis is Newton's laws of motion, D'Alembert's principle and Hertz contact theory. And we use world coordinate system, rotating coordinate system and Frenet coordinate system to deduce kinematics equations of vibration converter. The ultimate result demonstrates that the axial velocity and maximum contact stress change with the increment of ball diameter and helix angle. It also proves the validity of our derived kinematics and mechanical models and provides a good consultant value for the design and theoretical arithmetic of vibration converter for intelligent damper of drill strings.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/aamm.12-m1250
Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 5 : pp. 671–687
Published online: 2013-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 17
Keywords: Intelligent damper vibration converter kinematics analysis contact stress.
Author Details
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