摘要
为获得节流调速系统在不同工作状态下的瞬态特性,对进油、回油节流阀节流调速系统进行了数字与实验研究。建立了系统流体流动和各部件受力相互作用的动力学模型,仿真分析了系统参数——节流阀通流截面积At、负载F和油液体积弹性模量E对节流调速系统的动态特性影响;讨论了进油、回油节流阀节流调速系统的动态响应特性;通过试验验证了所设计的动力学模型的正确性。其研究方法可为设计液压系统时选择调速系统参数提供借鉴和参考。
In order to study transient characteristics in throttle speed control system under different working conditions,the inlet and outlet systems were studied numerically and experimentally.A dynamics model coupling fluid flow with the force in various components was developed.The effects of cross-sectional area At,load Fand bulk modulus of elasticity Eon dynamic characteristics of the throttle speed control system were analyzed by simulation.Dynamic response characteristics of the inlet and outlet systems were discussed.The research methods provide a reference for the correct parameter selection of the speed control system in the hydraulic system design.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2014年第20期2724-2728,2739,共6页
China Mechanical Engineering
基金
内蒙古自治区科学计划项目(20091505)
关键词
动力学模型
数字仿真
节流阀节流调速
瞬态特性
dynamics model
digital simulation
throttle speed control
transient characteristics
