• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 62 ›› Issue (6): 419-430.doi: 10.3901/JME.260205

• 交叉与前沿 • 上一篇    

扫码分享

考虑体积弹性模量非线性的液压执行机构自适应鲁棒运动控制

吕立彤1, 夏杨修2,3, 祁满志2,3, 陈正2,3, 张连朋1, 王瑞晨1   

  1. 1. 石家庄铁道大学机械工程学院 石家庄 050043;
    2. 浙江大学海洋精准感知技术全国重点实验室 杭州 310058;
    3. 浙江大学海洋学院 舟山 316021
  • 收稿日期:2025-05-28 修回日期:2026-01-08 发布日期:2026-05-12
  • 作者简介:吕立彤,男,1992年出生,博士,副教授,博士研究生导师。主要研究方向为电液控制。E-mail:litong_lyu@stdu.edu.cn
    陈正(通信作者),男,1984年出生,博士,教授,博士研究生导师。主要研究方向为先进机电控制。E-mail:zheng_chen@zju.edu.cn
  • 基金资助:
    国家重点研发计划(2023YFC2809903)、浙江省自然科学基金杰出青年基金(LR23E050001)、河北省高等学校科学技术研究(BJ2025200)、国家自然科学基金(52205064)和铁路青年人才托举工程资助项目。

Adaptive Robust Motion Control of Hydraulic Actuation Systems Considering Nonlinearity of Bulk Modulus

Lü Litong1, XIA Yangxiu2,3, QI Manzhi2,3, CHEN Zheng2,3, ZHANG Lianpeng1, WANG Ruichen1   

  1. 1. School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043;
    2. State Key Laboratory of Ocean Sensing, Zhejiang University, Hangzhou 310058;
    3. Ocean College, Zhejiang University, Zhoushan 316021
  • Received:2025-05-28 Revised:2026-01-08 Published:2026-05-12

摘要: 液压传动体积弹性模量与工作压力存在机理关系,但现有基于模型的控制方法大多未能将其考虑在内,对于模型补偿效果和运动跟踪性能均存在负面影响,其中难点在于对模型数学表达的合理选取,需要兼顾模型描述的准确性和控制设计的可行性。为此,首先基于对体积弹性模量机理的分析,考虑模型补偿和参数自适应可行性,提出参数化分式形式的体积弹性模量模型,以液压缸驱动的回转关节为例,建立整体系统的参数化动力学模型;其次,在自适应鲁棒控制框架下,利用反步法进行基于模型的运动控制设计,尤其是通过设计X-swapping机制,实现对体积弹性模量的有效模型补偿和主要参数在线自适应,并对闭环系统性能进行了理论分析;最后,开展对比试验,在与将体积弹性模量视为集中参数的主流控制方法对比中,实现了运动控制性能的进一步提升。

关键词: 电液控制, 自适应控制, 体积弹性模量

Abstract: There is a strong relationship between the bulk modulus and the working pressure in hydraulic systems. However, in almost all existing model-based control, such a relationship is not included, leading to negative impacts on model compensation effectiveness and motion tracking performance. The challenge is to select a mathematically reasonable model expression that balances accuracy in model description with feasibility in control design. To address this issue, this study first analyzes the mechanism of bulk modulus and proposes a parameterized fractional form model considering the feasibility of model compensation and parameter adaptation. Taking a hydraulic cylinder-driven rotary joint as an example, a parameterized dynamics model of the overall system is established. Subsequently, within the adaptive robust control framework, model-based motion control design is conducted using backstepping control. Particularly, through the design of an X-swapping mechanism, effective model compensation of the bulk modulus and online adaptation of key parameters are achieved. The theoretical analysis of the closed-loop system performance is also conducted. Finally, comparative experiments are carried out. Contrasted with mainstream control methods that treat the bulk modulus as a lumped parameter, the proposed approach demonstrates further enhancement in motion control performance.

Key words: electro-hydraulic control, adaptive control, bulk modulus

中图分类号: