基于AMEsim背压补偿对液压缸低速运行稳定的研究
发布时间:2018-11-16 09:03
【摘要】:为避免液压低速爬行现象对机械制造业的危害,从液压系统背压入手,通过对无背压系统及背压系统的系统刚度及运动学分析,得到系统刚度及临界爬行速度表达式。结果表明,相同工况下背压系统比无背压系统的系统综合刚度大,临界爬行速度小。在背压系统的基础上提出自适应背压系统,利用背压力补偿来消除液压缸低速爬行现象,并利用仿真技术验证系统的平稳性,为消除液压缸低速爬行现象提供了新思路。
[Abstract]:In order to avoid the harm of hydraulic low speed crawling phenomenon to the mechanical manufacturing industry, the system stiffness and critical creeping velocity expressions are obtained by analyzing the system stiffness and kinematics of the non back pressure system and the back pressure system from the back pressure of the hydraulic system. The results show that the integrated stiffness of the backpressure system is larger and the critical creeping speed is smaller than that of the non-backpressure system under the same working condition. On the basis of the back pressure system, an adaptive back pressure system is proposed, which uses the back pressure compensation to eliminate the low speed crawling phenomenon of the hydraulic cylinder, and uses the simulation technology to verify the stability of the system, which provides a new idea for the elimination of the low speed crawling phenomenon of the hydraulic cylinder.
【作者单位】: 西安科技大学机械工程学院;
【基金】:陕西省自然科学基金(2015JM5257) 西安科技大学博士启动基金(2014QDJ075)
【分类号】:TH137.51
本文编号:2335092
[Abstract]:In order to avoid the harm of hydraulic low speed crawling phenomenon to the mechanical manufacturing industry, the system stiffness and critical creeping velocity expressions are obtained by analyzing the system stiffness and kinematics of the non back pressure system and the back pressure system from the back pressure of the hydraulic system. The results show that the integrated stiffness of the backpressure system is larger and the critical creeping speed is smaller than that of the non-backpressure system under the same working condition. On the basis of the back pressure system, an adaptive back pressure system is proposed, which uses the back pressure compensation to eliminate the low speed crawling phenomenon of the hydraulic cylinder, and uses the simulation technology to verify the stability of the system, which provides a new idea for the elimination of the low speed crawling phenomenon of the hydraulic cylinder.
【作者单位】: 西安科技大学机械工程学院;
【基金】:陕西省自然科学基金(2015JM5257) 西安科技大学博士启动基金(2014QDJ075)
【分类号】:TH137.51
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