| 基于SPH方法的射孔枪设计及射孔过程研究 |
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| 引用本文： | 黄佳,张昭,郑勇刚,张洪武.基于SPH方法的射孔枪设计及射孔过程研究[J].测井技术,2011,35(5):487-493. |
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| 作者姓名： | 黄佳 张昭 郑勇刚 张洪武 |
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| 作者单位： | 大连理工大学运载工程与力学学部工程力学系,工业装备结构分析国家重点实验室,辽宁 大连 116024 |
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| 基金项目： | 国家自然科学基金资助项目(10802017);国家重点基础研究发展计划(973)资助项目(2010CB832704);国家高技术研究发展计划(863)资助项目(2009AA044501) |
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| 摘 要： | 基于SPH方法对射孔枪射孔过程进行了模拟,并实现高速射流情况下的射孔过程仿真.计算了射孔弹弹型不变的情况下以40CrNiMo为材料的枪筒,在不同射流速度下盲孔毛刺高度值,不同射流速度和不同盲孔深度下的穿孔直径以及不同材料下毛刺高度值.通过计算发现,盲孔毛刺高度随射孔速度的增加而降低,且高度值变化幅度越来越小；射孔枪的穿...
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| 关 键 词： | 射孔枪 SPH方法 毛刺高度 穿孔直径 射孔速度 拟合 |
On Perforating Gun Design and Perforating Process Based on SPH Method |
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| HUANG Jia,ZHANG Zhao,ZHENG Yonggang,ZHANG Hongwu.On Perforating Gun Design and Perforating Process Based on SPH Method[J].Well Logging Technology,2011,35(5):487-493. |
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| Authors: | HUANG Jia ZHANG Zhao ZHENG Yonggang ZHANG Hongwu |
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| Affiliation: | (State Key Laboratory of Structural Analysis for Industrial Equipment,Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology,Dalian,Liaoning 116024,China) |
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| Abstract: | SPH method is used to simulate the perforating processes,and the perforation in high velocities is simulated.The maximum flash heights of the blind holes are calculated in different efflux velocities,the perforation diameter of the blind holes are calculated in different efflux velocities and different blind holes depths and the flash heights in different materials.It is demonstrated that the heights of the flashes are decreased and the perforation diameters of the perforating gun are firstly increased and then decreased with the increase of the efflux velocity.A fitting formula is given to describe the relationship between perforation diameter and efflux velocity. The perforation diameters of the perforating gun increase with the decrease of the blind holes depth.The toughness of 40CrNiMo is higher than 45 steel,which leads to the fact that the flash heights and the perforation diameters in case of 40CrNiMo are lower. |
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| Keywords: | perforating gun SPH method flash height perforation diameter efflux velocity simulate |
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