Dragline Dynamic Modeling for Efficient Excavation

Date

2007-06-08

Author

Demirel, Nuray

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Overburden excavation is an integral component of the surface mine production chain. In large mines, the walking dragline is a dominant strip machine. Production engineers and operators must be guided by appropriate strategies to preserve the structural and operating performance of this equipment to justify its high capital investment. The dragline performance is a function of spatial kinematics and dynamics of its front-end assembly. In this study, the authors develop kinematics and dynamic modeling of a dragline front-end assembly using vector loop and simultaneous constraint methods. Detailed analysis of the simulation results show that the maximum closure error from the vector loop is 4x10E-8. The angular accelerations of the drag and hoist ropes are close to zero. The respective maximum drag, cutting and hoist forces are 100 kN, 200 kN, and 75 kN. The results provide a solid basis for developing appropriate simulation technologies for efficient dragline operations.

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https://hdl.handle.net/11511/54273

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Department of Mining Engineering, Conference / Seminar

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Citation Formats

N. Demirel, “Dragline Dynamic Modeling for Efficient Excavation,” 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54273.