China Mechanical Engineering ›› 2021, Vol. 32 ›› Issue (11): 1315-1320,1329.DOI: 10.3969/j.issn.1004-132X.2021.11.007

Previous Articles     Next Articles

Design and Force Control of Composite Axial Force Loading Apparatus

YANG Fang1;SI Donghong1;MA Xiqiang1;XUE Yujun1,2   

  1. 1.Henan Key Laboratory for Machinery Design and Transmission System,Henan University of Science and Technology,Luoyang,Henan,471003
    2.State Key Laboratory of Aviation Precision Bearing,Luoyang LYC Bearing Corporation,Luoyang,Henan,471003
  • Online:2021-06-10 Published:2021-06-25

复合轴向力加载装置设计与力控制

杨芳1;司东宏1;马喜强1;薛玉君1,2   

  1. 1.河南科技大学河南省机械设计及传动系统重点实验室,洛阳,471003
    2.洛阳LYC轴承有限公司航空精密轴承国家重点实验室,洛阳,471003
  • 作者简介:杨芳,男,1982年生,工程师。研究方向为机电一体化技术、电液伺服控制技术、高性能轴承试验机设计。获省级科技进步二等奖1项,中国机械工业科学技术二等奖4项。发表论文10余篇。E-mail:yangfanghkd@163.com。
  • 基金资助:
    国家重点研发计划(2019YFB2005004)

Abstract: The aeroengine main bearing test needed accurate and stable axial load to meet the performance test requirements, for this purpose,the design principle of the combined action of preloaded spring force and hydraulic force was analyzed, and a compound axial force loading apparatus with a built-in miniature force sensor was designed. Based on disturbance rejection control theory, the extended state observer was designed to observe feedback information, and combined with a nonlinear PID controller to develop a compound axial force control strategy. Finally, the compound axial force loading apparatus and its force control method were applied to the double rotor test rig of the aeroengine main bearing. The testing results show that the control accuracy of axial loading force is greatly improved.

Key words: bearing test, compound axial force, loading apparatus, disturbance rejection control

摘要: 为满足航空发动机主轴承试验对轴承精确稳定轴向载荷的需求,分析了复合作用于试验轴系的预压紧弹簧力和液压力的设计原理,设计了具有内置微型力传感器的复合轴向力加载装置,基于抗扰控制理论设计扩张状态观测器对反馈信息进行观测,并结合非线性PID控制器制定复合轴向力控制策略。在航空发动机主轴承双转子试验机上开展应用,试验结果表明:复合轴向力加载装置及其力控制方法能够很好地实现轴向加载力的精确控制。

关键词: 轴承试验, 复合轴向力, 加载装置, 抗扰控制

CLC Number: