A theoretical model for predicting the Peak Cutting Force of conical picks
In order to predict the PCF (Peak Cutting Force) of conical pick in rock cutting process, a theoretical model is established based on elastic fracture mechanics theory. The vertical fracture model of rock cutting fragment is also established based on the maximum tensile criterion. The relation betwe...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2014-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero27/numero_27_art_6.pdf |
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| _version_ | 1841564145792581632 |
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| author | Gao Kuidong Du Changlong Jiang Hongxiang Liu Songyong |
| author_facet | Gao Kuidong Du Changlong Jiang Hongxiang Liu Songyong |
| author_sort | Gao Kuidong |
| collection | DOAJ |
| description | In order to predict the PCF (Peak Cutting Force) of conical pick in rock cutting process, a theoretical model is established based on elastic fracture mechanics theory. The vertical fracture model of rock cutting fragment is also established based on the maximum tensile criterion. The relation between vertical fracture angle and associated parameters (cutting parameter and ratio B of rock compressive strength to tensile strength) is obtained by numerical analysis method and polynomial regression method, and the correctness of rock vertical fracture model is verified through experiments. Linear regression coefficient between the PCF of prediction and experiments is 0.81, and significance level less than 0.05 shows that the model for predicting the PCF is correct and reliable. A comparative analysis between the PCF obtained from this model and Evans model reveals that the result of this prediction model is more reliable and accurate. The results of this work could provide some guidance for studying the rock cutting theory of conical pick and designing the cutting mechanism. |
| format | Article |
| id | doaj-art-05f633a989e943b981c88e6766ee9a8d |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-05f633a989e943b981c88e6766ee9a8d2025-01-02T23:02:23ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-01-01827435210.3221/IGF-ESIS.27.06A theoretical model for predicting the Peak Cutting Force of conical picksGao Kuidong0Du Changlong1Jiang Hongxiang2Liu Songyong3School of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou 221116, ChinaIn order to predict the PCF (Peak Cutting Force) of conical pick in rock cutting process, a theoretical model is established based on elastic fracture mechanics theory. The vertical fracture model of rock cutting fragment is also established based on the maximum tensile criterion. The relation between vertical fracture angle and associated parameters (cutting parameter and ratio B of rock compressive strength to tensile strength) is obtained by numerical analysis method and polynomial regression method, and the correctness of rock vertical fracture model is verified through experiments. Linear regression coefficient between the PCF of prediction and experiments is 0.81, and significance level less than 0.05 shows that the model for predicting the PCF is correct and reliable. A comparative analysis between the PCF obtained from this model and Evans model reveals that the result of this prediction model is more reliable and accurate. The results of this work could provide some guidance for studying the rock cutting theory of conical pick and designing the cutting mechanism.http://www.gruppofrattura.it/pdf/rivista/numero27/numero_27_art_6.pdfConical pickPeak Cutting ForceFracture angle |
| spellingShingle | Gao Kuidong Du Changlong Jiang Hongxiang Liu Songyong A theoretical model for predicting the Peak Cutting Force of conical picks Fracture and Structural Integrity Conical pick Peak Cutting Force Fracture angle |
| title | A theoretical model for predicting the Peak Cutting Force of conical picks |
| title_full | A theoretical model for predicting the Peak Cutting Force of conical picks |
| title_fullStr | A theoretical model for predicting the Peak Cutting Force of conical picks |
| title_full_unstemmed | A theoretical model for predicting the Peak Cutting Force of conical picks |
| title_short | A theoretical model for predicting the Peak Cutting Force of conical picks |
| title_sort | theoretical model for predicting the peak cutting force of conical picks |
| topic | Conical pick Peak Cutting Force Fracture angle |
| url | http://www.gruppofrattura.it/pdf/rivista/numero27/numero_27_art_6.pdf |
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