| Derrick is an important part of the drilling equipment，It was used for install andsuspension floating block、hook、 lifting mechanism，and,So that was mentioned and drillingequipment and tools, take down and store up the drill pipe, casing string, The Car pack derrickstructure to have enough stability and strength, so that the tripping and processing holeaccidents can safely when lifting work. To improve the efficiency of tripping and derrick toreasonable height, beam section size of the derrick should satisfy the request of installationand operation of the floating block and Running up and down，derrick girder constructionstructure be reasonable and light weight and easy to stand up. So the derrick ’s put forward thenew request.In this paper, according to the use of the drilling rig both at home and abroad presentsituation and development trend, and in the light of the four corners of the special structurereasonable rig effectively established the finite element model of the tower, and setting thecontrast scheme. Use of ANSYS software to scale the statics analysis and the dynamicanalysis. The result of that has important academic value and practical value.This paper mainly research content is: analysis and study of the four corners of the rigpart each part and the working principle, this paper expounds the tower in the overall job tothe function of the drilling rig, and put forward the current our country widespread use of thetower of the existing problems; Through the reasonable simplified to tower, a tower of thefinite element model; According to two scheme, the structure of tower of statics analysis,obtained the corresponding analysis results, and points out that the two kinds of tower modelin normal working conditions the maximum stress and displacement of the area, the laterstructure optimization design has important significance; The dynamic analysis results fromthe rig to the frequency of resonance occur and instability forms, and gives the correspondingSuggestions to avoid damage. |
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