Optimised Design of Rotary Drilling Rig Mast Section
Rotary drilling rig is a kind of engineering machinery and equipment used for construction and drilling,and because it often faces complex working conditions,it needs to optimise the design of the mast section of rotary drilling rig in order to improve the bending and torsion resistance of the mast Through the theoretical calculation and finite element analysis of the commonly used concave box section and large rounded square section,the optimal section shape is determined,the extreme drilling conditions and extreme lifting conditions are selected,the maximum stress and deflection values on the mast are calculated,and the expressions containing the unknowns to be optimised are obtained,and the constraints on the unknowns are imposed by using the permissible stress and permissible deformation to obtain the optimal solutions for the aspect ratio of the section and the thickness of the plate.
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