工程设计学报
工程設計學報
공정설계학보
JOURNAL OF ENGINEERING DESIGN
2015年
1期
42-48
,共7页
李帅%牛文铁%李洪涛%付胜利
李帥%牛文鐵%李洪濤%付勝利
리수%우문철%리홍도%부성리
偏置机构%导向控制%圆柱螺线法%仿真%实验
偏置機構%導嚮控製%圓柱螺線法%倣真%實驗
편치궤구%도향공제%원주라선법%방진%실험
offset mechanism%steering control%cylindrical spiral method%simulation%experiment
偏置机构芯轴偏心位移的精确控制是实现导向钻进的核心问题。针对一种新型静态指向式偏置机构,首先介绍了其结构组成以及轨迹控制原理;其次,建立基于圆柱螺线法的井眼轨迹控制算法数学模型,并以三维多目标井眼轨迹为例,讨论了如何通过该机构实现井眼轨迹的控制,并基于SolidWorks和ADAMS进行机构虚拟模型的建立和运动仿真,得到偏置机构运动情况曲线;最后,建立基于LabVIEW的实验平台对偏置机构样机的导向性能进行验证。通过仿真结果、实验值和理论值的比较,确定该算法产生较好的控制效果,证明了实现机构导向控制的可行性,从而为旋转导向钻井工具实际轨迹控制算法设计与优化奠定理论基础。
偏置機構芯軸偏心位移的精確控製是實現導嚮鑽進的覈心問題。針對一種新型靜態指嚮式偏置機構,首先介紹瞭其結構組成以及軌跡控製原理;其次,建立基于圓柱螺線法的井眼軌跡控製算法數學模型,併以三維多目標井眼軌跡為例,討論瞭如何通過該機構實現井眼軌跡的控製,併基于SolidWorks和ADAMS進行機構虛擬模型的建立和運動倣真,得到偏置機構運動情況麯線;最後,建立基于LabVIEW的實驗平檯對偏置機構樣機的導嚮性能進行驗證。通過倣真結果、實驗值和理論值的比較,確定該算法產生較好的控製效果,證明瞭實現機構導嚮控製的可行性,從而為鏇轉導嚮鑽井工具實際軌跡控製算法設計與優化奠定理論基礎。
편치궤구심축편심위이적정학공제시실현도향찬진적핵심문제。침대일충신형정태지향식편치궤구,수선개소료기결구조성이급궤적공제원리;기차,건립기우원주라선법적정안궤적공제산법수학모형,병이삼유다목표정안궤적위례,토론료여하통과해궤구실현정안궤적적공제,병기우SolidWorks화ADAMS진행궤구허의모형적건립화운동방진,득도편치궤구운동정황곡선;최후,건립기우LabVIEW적실험평태대편치궤구양궤적도향성능진행험증。통과방진결과、실험치화이론치적비교,학정해산법산생교호적공제효과,증명료실현궤구도향공제적가행성,종이위선전도향찬정공구실제궤적공제산법설계여우화전정이론기출。
The accuracy control of offset displacement for an offset mechanism spindle is a crucial issue to realize the steering drilling .Aiming at a new type of static point‐the‐bit offset mecha‐nism ,its structure was introduced and the control principle was discussed first .Then ,the math‐ematical model of well trajectory control algorithm based on the cylindrical spiral method was es‐tablished ,and a three dimensional multi‐objective well trajectory was taken as an example to show how to realize the well trajectory control with the algorithm proposed ,as well as the estab‐lishment and simulation of the virtual model based on the platform of SolidWorks and ADAMS . Then the motion curve of the offset mechanism were obtained .At last ,experiments on the steer‐ing performance of the new offset mechanism prototype were carried out based on LabVIEW . Comparing both simulation results and experimental measurements with theoretical values ,it was concluded that the algorithm produced a fine control effect .The results verify the feasibility of realizing steering control for the offset mechanism and provide a theoretical reference for the de‐sign and optimization of the practical trajectories control algorithms .