Analysis of Bit-Rock Interaction Models Using Finite Element Simulation Data ⋆
| Autor: | Chengda Lu, Sike Ma, Luefeng Chen, Hengyu Huang, Min Wu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Computer science Interaction model 02 engineering and technology Finite element method Finite element simulation Rock breaking 020901 industrial engineering & automation Weight on bit 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Young model Nonlinear regression Algorithm Analysis method |
| Zdroj: | 2020 39th Chinese Control Conference (CCC). |
| DOI: | 10.23919/ccc50068.2020.9189430 |
| Popis: | The study of bit-rock interaction model is essential to describe the rock breaking process. In practice, it is difficult to get downhole measurement, and the downhole rock-breaking data is difficult to obtain. Therefore, this paper uses finite element simulation to obtain the kinetic data of bit-rock interaction, based on the analysis and comparison of existing models, an effective analysis method is provided for bit-rock interaction. Firstly, by using the Drucker-Prager rock criterion, actual bit and rock parameters, we develop the finite element bit-rock interaction experiments, and we obtain the data of rotating speed, rate-of- penetration, weight-on-bit. Then, based on multiple nonlinear regression method, we identify the existing Young model, Jorden and Shirley model, Richard model, Ritto model parameters. Through the analysis and comparison of identification effects and characteristics of each model, we obtain the relationship among parameters of the bit-rock interaction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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