摘要
应用键台图－状态空间分析法为 Ｍ７１２０Ａ型平面磨床液压换向控制系统建立了数 学模型。针对“刚性方程”问题，在建立和求解数学模型时采用了“状态分段法”，有 效地减少了仿真计算时间；在数学模型中保留了主要的非线性因素，使理论分析的精 度提高，对系统的换向过度过程进行了数字仿真及试验验证，两者结果基本吻合。用此 数学模型分析了系统诸参数对动态特性的影响，在此基础上提出了改善原系统动态特 性的措施。
This paper presents simulation results for the hydraulic reciprocating control system of the Type M7120A Surface-Grinding Machine using Bond Graph-State Space Methods. In the establishment of the mathematical model of the system to be studied, the 'State-Separate Method' is adopted, omitting some factors which have little effect on the system, but including major nonlinear factors in each separate state. This adds to the numeral calculating stability of statespace equations and reduces calculating time effectively. According to experimental results, the mathematical model of the system is basically correct and it reflects the dynamic character of the system.The paper also presents studies of the effects of some working parameters and structural parameters on the dynamic character of the system.On the basis of these studies, several measures are put forward to reduce the run-out of the original system and provide references for re-designing the system.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1989年第3期317-325,共9页
Journal of Dalian University of Technology
关键词
液压传动
磨床
仿真
动态响应
hydraulic power transmission
grinders
dynamic response
simulation
non-linear control systems/power bond graph
state space methods
