基于Matlab及AMEsim的大型金属挤压机卸荷系统仿真分析  

Simulation analysis of large metal extruder's unloading system based on Matlab and AMEsim

作　　者：孙康[1,2] 邱小童[1] 陈闻[1,2] 

机构地区：[1]江西理工大学应用科学学院,赣州341000 [2]浙江大学流体动力与机电系统国家重点实验室,杭州310007

出　　处：《现代制造工程》2012年第12期17-20,88,共5页Modern Manufacturing Engineering

基　　金：国家重大科技专项项目(2009ZX04005-031);浙江大学流体动力与机电系统国家重点实验室开放基金项目(GZKF-201023);江西省教育厅科学计划项目(GJJ1146)

摘　　要：应用大型液压系统仿真软件AMEsim10.0及系统建模软件Matlab7.1/Simulink建立了新型大型金属挤压机卸荷系统模型,从理论上建立了三级插装阀数学模型,并通过联合仿真分析,得出了系统在不同工况下的卸荷响应特性以及卸荷过程中不同元件参数对卸荷响应特性的影响。研究结果表明:中、低压工况下利用单级插装阀即实现平稳卸荷,而高压工况下需要利用排液型三级插装阀才能实现平稳快速卸荷,卸荷速度与先导节流阀开度成正比。The large-scale hydraulic simulation software AMEsimlO. 0 and modeling sottware Matlab7. 1/SimullnK were appneu to establish model of a new unloading system of large metal extruder. Mathematical model of three-stage cartridge valve was estab lished theoretically,and through co-simulation analysis, the unloading response of different system conditions and the unloading process parameters for the different components of unloading response were reached. The results show that： single-stage cartridge valve can achieve a smooth unloading in the case of medium and low pressure ,but discharge-type three-stage cartridge valve block must be used to achieve smooth and fast unloading in the case of high pressure. Unloading speed is proportional to opening degree of throttle valve.

关 键 词：挤压机卸荷 插装阀数学模型 联合仿真 响应特性 

分 类 号：TB122[理学—工程力学]