液压与气动2026，Vol.50Issue(2)：43-52,10.DOI:10.11832/j.issn.1000-4858.2026.02.005
水下液压步进式执行器建模方法及仿真验证
Modeling Method and Simulation Verification of Subsea Hydraulic Stepping Actuator
摘要
Abstract
A subsea hydraulic stepping actuator is the core equipment for flow control in deep-sea Christmas trees,and its dynamic performance directly influences the safe and stable operation of subsea production systems.To address the difficulty in accurately characterizing the subsea hydraulic stepping actuator's nonlinear dynamic response in deep-sea high-pressure and low-temperature environment,a high-precision modeling method based on the design and analysis software of subsea-control system is proposed.Using a component-based modeling concept,a simulation model of this actuator is established.It integrates the Stribeck friction model,deep-sea pressure compensation mechanism and hydraulic-mechanical coupling characteristics.Innovatively,the Gevrey function is adopted to smooth the mechanical friction link.It effectively optimizes the numerical stability and response speed of the solver.Through the parameter sensitivity analysis,typical working condition simulation and demonstration project application verification,it is verified that during the opening process of the production choke valve,the deviations of key indicators such as actuator piston displacement and oil supply pressure are all less than 2%,and the nonlinear dynamic response of the actuator can be accurately reproduced.This modeling method provides a reliable technical means for the design optimization and performance prediction of subsea hydraulic stepping actuators,and also lays a modeling technical foundation for achieving independent and controllable development of deep-sea equipment.关键词
水下液压步进式执行器/组件式建模/动态性能/Gevrey平滑算法/水下节流阀/压力补偿Key words
subsea hydraulic stepping actuator/component-based modeling/dynamic performance/Gevrey smoothing algorithm/production choke valve/pressure compensation分类
机械制造引用本文复制引用
侯广信,吴露,卢靖,葛斐,王松峰,冯苗涛..水下液压步进式执行器建模方法及仿真验证[J].液压与气动,2026,50(2):43-52,10.基金项目
国家科技重大专项(2025ZD1403500) （2025ZD1403500）
