本科生大学设计(课题论文)模板.docVIP

本 科 毕 业 设 计（论文） 题 目：开发式基金登记过户（TA）系统 学生姓名：张 静 学 号专业班级：计算机科学与技术08-5班 指导教师： 年 月 日 摘 要 根据游梁式抽油机四连杆机构的几何关系和运动特点，建立了游梁的摆动方程并精确计算出游梁式抽油机悬点运动参数；考虑抽油机光杆静载荷和惯性载荷及运动机构的重力和惯性情况，建立了抽油机系统相对曲柄的等效动力学模型并求出具有动平衡特征的曲柄轴净扭矩；根据抽油机皮带传动特点和力学分析，建立了一种简便的皮带传动效率计算模型，为分析抽油机瞬时工作参数提供了理论支持；重新定义了周期载荷系数计算储电动机额定功率并以常规游梁式抽油机、调径变矩式抽油机为例，编写了计算机程序，实现了重要参数的计算，绘制了关键曲线，由此比较得出了节能抽油机的优点。文中还对其他节能抽油机进行了简要介绍。 关键词：速度；加速度；扭矩；周期载荷系数；调径变矩式 ABSTRACT Based on the unique geometry and mechanical movement of beam pumping unit, we have presented a simple swing equation and computed motorial parameter; meanwhile under the conditions of the static load and inertial load of the polished-rod of a conventional pumping unit, we have also presented on equivalent dynamic model of the pumping unit system and the type-curves of net torque of the crankshaft with the characteristic of inertial counterbalance have been computed; Based on features and mechanical analysis of belt，a simple model for calculating belt transmission efficiency is developed the model can provide a theoretical base for study on the other transient variable of beam pumping unit; The cyclic loading coefficients is defined once and compute the nominal Power of the motor; at last we compare the beam pumping unit and the adjustable diameter and changeable toque pumping unit, based on this a program have been finished，and we also introduce other power saving pumping units. Keywords: velocity; acceleration; toque; the cyclic loading coefficients; adjustable diameter and changeable toque pumping unit 目 录 第1章 前言……………………………………………………………………1 1．1 国内外油田抽油机的现状………………………………………………1 1．2 游梁式抽油机的节能方法………………………………………………1 第2章 游梁式抽油机地面能耗分析…………………………………………2 2．1 游梁式抽油机……………………………………………………………2 2．2 抽油机悬点运动规律……………………………………………………3 2．2．1 游梁摆动方程的建立 ……………………………………………3 第3章 地面能耗分析软件的编制与应用……………………………………5 3．1 油井数据…………………………………………………………………5 3．2 地面设备数据……………………………………………………………5 第4章 结论……………………………………………………………………7 致谢………………………………………