工程设计学报2018，Vol.25Issue(2)：173-179,7.DOI:10.3785/j.issn.1006-754X.2018.02.007
振荡冲击器工作性能理论分析及其结构优化
Working performance theoretical analysis and structure optimization of oscillation impacter
摘要
Abstract
In recent years,oscillation impacter has been used to improve its penetration rate at home and abroad.The basic theory and structure optimization method in the engineering applica-tion were researched.The theory of transient flow was used to establish the pressure model of hy-draulic impulse wave by analyzing the structure and working principle of the oscillation impacter. Numerical simulation of hydraulic impulse of oscillation impacter by MATLAB software pro-gramming was studied,and the influence of different factors on vibration impact performance was analyzed.The variation characteristic of the flow area of the key parts-disc valve was conducted. The effect law of the eccentricity e and the flow area radius r on the performance was obtained. The objective function which generated conclusive force was built.The steps of the optimization of the hydraulic pulser were established.On this basis,the model machine was processed,and in-door experiments were carried out.The experiment verified the rationality of the design,the va-lidity of the theoretical analysis and the accuracy of the numerical calculation of the oscillation im-pacter.T he results can offer the guide for optimizing the hydraulic pulser,and provide theoretical support for drilling field application of the oscillation impacter.关键词
钻速/振荡冲击器/盘阀/水力脉冲/理论分析/优化Key words
rate of penetration(ROP)/oscillation impacter/disc valve/hydraulic pulse/theoretical a-nalysis/optimization分类
能源科技引用本文复制引用
李敏,李开兴,杨鹏,王洋..振荡冲击器工作性能理论分析及其结构优化[J].工程设计学报,2018,25(2):173-179,7.基金项目
国家科技重大专项(2016ZX05021003) （2016ZX05021003）
