Vibration analysis of the fully coupled nonlinear finite element model of composite drill strings
| Autor: | Maziar Mohammadzadeh, Jianming Yang, Mohammadreza Arbabtafti, Majid Shahgholi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Drill Physics::Instrumentation and Detectors business.industry Mechanical Engineering Modal analysis Drilling 02 engineering and technology Structural engineering 01 natural sciences Finite element method Drill string Physics::Geophysics Stiffening Vibration Nonlinear system 020303 mechanical engineering & transports 0203 mechanical engineering 0103 physical sciences business 010301 acoustics |
| Zdroj: | Archive of Applied Mechanics. 90:1373-1398 |
| ISSN: | 1432-0681 0939-1533 |
| DOI: | 10.1007/s00419-020-01673-8 |
| Popis: | In recent years to overcome many limitations of drilling operations, composite drill strings as high-tech rotors with complex dynamic behavior are under development. In this research, the fully coupled nonlinear vibration of composite drill strings, which consist of orthotropic layers, is investigated using the Lagrangian approach and the finite element method. In addition to the main nonlinear terms and particularly the geometric stiffening effect, which resulted from the interaction of the drill string weight and the axial bit force, the gyroscopic effect has also been taken into account. The analysis ability of the dynamic model, which is intended to furnish a basic model for the further development of a more comprehensive model, is examined. The fully coupled nonlinear vibrations and modal analysis of the composite drill strings due to various fiber orientations and stacking sequences in the different drilling conditions are studied, and are compared with the steel drill string. |
| Databáze: | OpenAIRE |
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