摘要
根据正脉冲液压信号发生器的基本结构和工作原理 ,简化出二通先导阀控式液压信号发生器的液压系统模型。以信号发生器液压系统工作原理为基础 ,应用液压阀的流量压力特性关系 ,建立了系统的入口和出口的动态流量平衡方程 ;在综合考虑运动件的液压力、稳态液动力、瞬态液动力 (阻尼力 )的情况下 ,建立了主阀心和溢流阀心的动态受力平衡方程 。
According to the basic structure and working principle of the positive pulse hydraulic signal generator, the hydraulic system model for hydraulic signal generator controlled by two-way pilot valve is deduced. Based on the principle of the hydraulic system of this signal generator, the dynamic equilibrium equations of influent and effluent flow are established by means of the flow-pressure characteristic relation of the valve. By taking account of the hydraulic pressure and the steady and instantaneous hydraulic, the dynamic equilibrium equations of forces on the main valve and overflow valve are established. Consequently a general mathematical model for the design and analysis of this kind of hydraulic signal generator are offered.
出处
《石油机械》
北大核心
2004年第6期26-28,84,共3页
China Petroleum Machinery
基金
国家经贸委及 863资助课题"CGMWD正脉冲随钻测斜仪"中的部分内容
关键词
随钻测量阀
液力信号发生器
液压系统
钻井工艺
弹簧
运动微分方程
drilling control, measurement while drilling (MWD), hydraulic signal generator, hydraulic system, mathematical model
