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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Baosong Ma
Baosong Ma
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Derrick is the main component of the full-hydraulic core drill rig. It plays a key role on the capacity, efficiency, security and reliability of the drill rig. Because of the complexity of the structure and stress status, the current calculation method can't satisfy the design requirement. The derrick designed by normal method has many disadvantages, such as low stress level and stock utilization, high weight and costs. This paper analyzed the structure and nodes of the derrick by ANSYS software, the optimum dimensions and angle between the main rod and branch rod of K-joint were derived through optimization design, the weight of derrick was reduced greatly. The results offered theoretic guidance for the reasonable design of derrick.

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