Design And Finite Element Analysis Of The Holding Pole For Oil Derrick

The holding pole is a common kind of engineering structure.The reasonability of its use and appropriateness of its management can directly influence on economy and security.But in fact,the engineering application of holding pole is mostly based on experience,it doesn’t put forward specific calculation rules,which can cause unnecessary waste and hidden safe trouble.According to the technology principle of the holding pole and the original holding pole of Shengli Oil Field,this paper has redesigned a inner cable suspended holding pole for constructing oil derrick.The paper has redesigned the fixed form and work procedure for holding pole,which can accord with the job requirement of constructing oil derrick.This paper has calculated the force of the holding pole stays and choose the size of it.Calculation show that the angle of stays with the ground greatly influence the force of the holding pole stays.This paper has established the three-dimensional model of holding pole by its structure and import into ANSYS Workbench.According to the design of the holding pole and the structure of oil derrick,this paper divided the load cases into five kinds,and made the finite element analysis for the five kinds load cases.The stress of the holding pole is within the allowable stress of material The maximum stress was in the working condition of unilateral lifting cases.According to the design conditions of holding pole and the previous construction experience of Shengli Oil Field,this paper made the distribution strain gage and test conditions for some key points.It made mechanical test to check reliability of the working performance and structure and the finite element calculation model to ensure the reliability of safe during the holding pole’s working.