大型旋转设备压液式自动平衡系统  

Pneumatic-liquid Type Automatic Balancing System for Large-scale Rotating Equipment

作　　者：霍家骥 于洪杰[2] 潘鑫 江志农[1,2] 宾光富 HUO Jiaji;YU Hongjie;PAN Xin;JIANG Zhinong;BIN Guangfu(Beijing Key Laboratory of Health Monitoring and Self-recovery for High-end Mechanical Equipment,Beijing University of Chemical Technology,Beijing 100029;College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029;College of Mechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201)

机构地区：[1]北京化工大学高端机械装备健康监控与自愈化北京市重点实验室,北京100029 [2]北京化工大学机电工程学院,北京100029 [3]湖南科技大学机电工程学院,湘潭411201

出　　处：《机械工程学报》2023年第18期121-129,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金面上(51875031);北京市自然科学基金面上(3212010)资助项目

摘　　要：压液式在线自动平衡系统作为一种新型的液体式自动平衡系统,具有结构简单、旋转部分无可动部件、动作环境封闭、平衡过程可逆且可停机保持等优点。相较于已有其他在线自动平衡系统,更适用于大型旋转设备领域。介绍该在线自动平衡系统的组成及工作原理,基于某最大直径达500 mm的转子实际结构,通过有限元仿真对转子-轴承-单/双平衡执行器系统的动力学特性进行定量分析,据此设计的平衡执行器对原转子系统的动力学特性影响在2%以内;分别进行单/双平衡执行器的抑振效果模拟仿真,振幅降低70%以上。最终在模拟试验台上,通过单面自动平衡试验将转子振幅从18.6μm降至10.6μm,验证该平衡系统的可行性和有效性;通过双面动平衡将转子振幅从17.8μm降低至4.6μm,为后续双面自动平衡研究奠定技术基础。As a new type of liquid automatic balancing system,the pneumatic-liquid online automatic balancing system has the advantages of simple structure,no moving parts in the rotating part,closed action environment,reversible balancing process and can be held after stopping,etc.Compared with other forms of online automatic balancing systems,it is more suitable for large-scale rotating equipment.The composition and working principle of the online automatic balancing system are introduced,based on the actual structure of a rotor with a maximum diameter of 500 mm,the finite element model has been established.The dynamics of the rotor-bearing-single/double balancing actuator system has been quantified,according to which the balancing actuator was designed to change the dynamics of the rotor system by less than 2%.The vibration suppression effect of single/double actuators has been simulated,and the amplitude of the rotor has dropped by more than 70%.The experiment illustrates that the single-sided automatic balancing experiment achieves the reduction of rotor amplitude from 18.6μm to 10.6μm,which verifies the feasibility and effectiveness of the balancing system;the reduction of rotor amplitude from 17.8μm to 4.6μm by double-sided dynamic balancing which lays the technical foundation for the subsequent double-sided automatic balancing research.

关 键 词：大型旋转设备 自动平衡 压液式 动力学特性仿真 结构优化设计 

分 类 号：TB123[理学—工程力学] TB535[理学—力学]