中南大学学报（自然科学版）2016，Vol.47Issue(7)：2281-2286,6.DOI:10.11817/j.issn.1672-7207.2016.07.015
电液比例阀控非对称缸系统的负载流量特性
Load flow property of electrohydraulic proportional valve controlling asymmetric cylinder system
摘要
Abstract
Aiming at the inconsistent dynamic property, the mathematic model of asymmetric electrohydraulic proportional system with dead zone was built, and the asymmetric property of the system was analysed based on the model with the influence of the load and the asymmetric structure. The load flow property curve in any load situation was obtained using the mathematic model when the proportional valve was in the linear flow zone. The results show that the asymmetric property of proportional valve is more obvious with the increase of pulling load and the decrease of the area proportion, but is less obvious at first and then more with the increase of pressure load. The relative error between the actual load flow proportion and the theoretical value is less than 6%and the analysis of the load flow property is verified correct.关键词
电液比例阀/非对称特性/死区/负载流量比Key words
electrohydraulic proportional valve/asymmetric system/dead zone/the load flow proportion分类
机械制造引用本文复制引用
曾乐,谭建平,杨俊,周宇峰..电液比例阀控非对称缸系统的负载流量特性[J].中南大学学报（自然科学版）,2016,47(7):2281-2286,6.基金项目
国家重点基础研究发展计划(973计划)项目(2014CB049405)；国家科技重大专项(2009ZX04005-031)；高性能复杂制造国家重点实验室自主探索基金资助项目(zzyjkt2013)(Project(2014CB049405) supported by the National Basic Research Program (973 Program) of China （973计划）
Project(2009ZX04005-031) supported by the National Science and Technology Major Special （2009ZX04005-031）
Project(zzyjkt2013) supported by the State Key Laboratory of High Performance Complex Manufacturing) （zzyjkt2013）
