采煤机调高系统虚拟样机研究-机械电子工程专业毕业论文.docx

文档介绍：太原理工大学
硕士学位论文采煤机调高系统虚拟样机研
姓名:向虎申请学位级别:硕士专业:机械电子工程指导教师:廉自生 20040501
查墨兰三奎兰塑主!茎竺兰堡竺苎!:!墨壁呈墨垒
论文题目:采煤机调高系统虚拟样机研究
摘 要
虚拟样机技术(Virtual Prototype Technology)作为现代设计错4造领域的一f1薪技术,为传统的机械产品设计注入了新的活力。本文采用虚拟样机技术对采煤机调高系统的动力学进行了研究。
本文采用Pro/e软件建立了系统的机械结构的几何模型, 再通过Pro/e与ADA淞问的接口,将机械结构的几何模型导入到机械系统动力学分析软件ADAMs中,建立了采煤机调高系统数
字化模型。
通过对系统阶跃响应分析,聪虚拟样机模型进行了掺正, 得出了液压系统的固有频率大约在14Hz。修正后系统性能明显改善。
系统的频率响应仿真与分手厅,得出了系统对不同频率正弦信号的响应,进一步验证了调高系统的固有频率为14Hz。系
太厦理工大学硕士研究生学位论文
统对中频和高频信号衰减很快。最后,模拟实际割煤载荷,通过ADAMS与MATLAB间的接口,
给系统麓加服从正态分布的驻机信号,并褥出了系统的动态响应。包括各铰接点的力、加速度变化曲线,阻及液匿系统的动态响应。验证了系统的固有频率,为液压系统设计中参数确定和元件选取提供了依据。
总之,采煤机截剖部虚拟样机的研究,是先进的设计、分析、仿真技术应用于采谋机设计中的初步尝试,为设计经济、可靠、稳定的搿性能采煤机提供了有力的工具和实现方法。
关键字;
采煤杌 虚拟样机 液疆系统 动态仿真
ADAMS 动力学分析
太***理工太学硬士研究生学位论文
V I RTUAL PROTOTYPE RESEARCH ON SHEARER’S REGULAT l NG SYSTEM
ABSTRACT
shearer’s regulating system+
This paper adopts Pro/E software tO establish the geometrical model of system's mechanical structure,and through 出e interface between ADAMS and import the geometrical model of mechanical structure into the dynamic analysis software ADAMS tO establish a digitalized model of shearer's regulating system.
By the step response analysis of system,the virtual proto鲫e
model is amended to conclude that the free frequency of
hydraulic system is 14HZ more or less,and the system performance is distinctively improved after the amendment.
The simulation and analysis of the systemic frequency response get to the response of system to different frequencies’
太原理工大学硕士研究生学位论艾
sine signal and further prove that the free frequency of regulating system is system decreases rapidly to the mid—frequency and high-frequency signals.
Finally,imitating the actual load during the cutting process, through the interface between ADAMS and MATLAB,we apply a normal distribution signal to the system and get the dynamical
response of the system,including the force On each hinge point, acceleration response and the dynamic response of hydraulic
system,thus to