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Study On The Optimum Matching Characteristics Of The Impact Frequency Of A Torsion Shock

Posted on:2019-02-28Degree:MasterType:Thesis
Country:ChinaCandidate:F D LiuFull Text:PDF
GTID:2371330566467107Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
In recent years,with the continuous drilling of deep wells and ultra-deep wells in drilling engineering,the problem of sticking and sliding in the drilling process has increasingly become an issue that is currently urgently needed for drilling.In order to solve the "card-slip" phenomenon that occurs during drilling,scholars at home and abroad have conducted extensive research.In this paper,after consulting the domestic and foreign research data related to the torque impactor,it is known that the torque impactor must achieve a stable impact frequency during the impact motion,so as to effectively solve the problem of stuck drilling and sliding drilling in the drilling.The structural design of the internal dynamic impact device of the torque impactor is the most direct factor that determines the stability of the impact frequency.In this paper,based on previous studies,a new type of impact principle is proposed,and a torsional impact model is developed based on this principle,and the model is studied.This article uses a combination of experiment and theory to study.First,after consulting a large number of domestic and foreign literatures related to torque impactors,a new principle of torsional impact was proposed.Based on this principle,a new type of torsional impact model for circular motion was developed and introduced in detail.The model works on the principle of impulse sports.Second,relying on Bernoulli's equation,energy conservation equation and Newton's second law,the impact model was analyzed and the mathematical model and dynamic equations were established for the whole movement process.Finally,through the integral derivation and degeneration of the kinematics equation,the impact frequency equation of the impact system is obtained.With the impact frequency as the research focus,the relevant parameters that affect the impact frequency are analyzed,and the corresponding hammer mass is obtained.Parametric Equation of Jet Inlet Flow and Hammer Rotation Angle.In order to verify the feasibility of the impact model studied in this paper and the correctness of the theoretical method,SIMULINK software was selected as a means to carry out simulation research.The mathematical model and dynamic equation established in the previous article were used as a basis for simulation.It was verified that the impact model was feasible.Under the premise of sexuality and correctness,the impact frequency was further simulated and the best matching parameter values for hammer mass,jet inlet flow,and hammer rotation angle were obtained when the impact frequency was in the range of 750-1500.range.In order to verify the feasibility of the previous impact model and the correctness of the simulation study,this paper conducts an experimental study of the impact model,and verifies the feasibility of the theoretical model and the correctness of the simulation results.It is the impact frequency of the torque impactor in China in the future.The study provided the basis for the design.
Keywords/Search Tags:Torsion impactor, Horizontal impact, Simulation, Optimal frequency
PDF Full Text Request
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