China Mechanical Engineering ›› 2026, Vol. 37 ›› Issue (5): 1183-1192.DOI: 10.3969/j.issn.1004-132X.2026.05.018

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Digital Twin Based Vibration Performance Monitoring Method for Gear Transmission Systems

ZHANG Runcheng1(), LIU Jiezhou2, WANG Yiwei2, LIU Geng1, TONG Ruiting1()   

  1. 1.Shaanxi Engineering Laboratory for Transmissions and Controls,Northwestern Polytechnical University,Xi'an,710072
    2.AECC Hunan Aviation Powerplant Research Institute,Zhuzhou,Hunan,412002
  • Received:2025-06-20 Online:2026-05-25 Published:2026-06-09
  • Contact: TONG Ruiting

基于数字孪生的齿轮传动系统振动性能监测方法

张润成1(), 刘捷舟2, 汪义伟2, 刘更1, 佟瑞庭1()   

  1. 1.西北工业大学陕西省机电传动与控制工程实验室, 西安, 710072
    2.中国航发湖南动力机械研究所, 株洲, 412002
  • 通讯作者: 佟瑞庭
  • 作者简介:张润成,男,2002年生,硕士研究生。研究方向为数字孪生。E-mail:zhangruncheng@mail.nwpu.edu.cn
    佟瑞庭*(通信作者),男,1981年生,教授、博士研究生导师。研究方向为数字孪生、机械传动、机械设计和摩擦学。E-mail:tongruiting@nwpu.edu.cn

Abstract:

In order to monitor the vibration states of the gear transmission systems during operation, a digital twin-based method was proposed for monitoring the vibration performances of the gear transmission systems. Considering the physical model, the digital twin model and the interaction between the two models, a digital twin framework of the gear transmission systems was developed. A mechanism model of the gear transmission systems was presented based on the generalized finite element method, and the simulation data produced were used to construct a surrogate model which was constructed using the simulation data generated by this mechanism model, so as to replace the original computationally expensive mechanism model. The model parameters were selected by the Sobol sensitivity analysis method, and a genetic algorithm was used to update the model in combination with the experimental data. The updated model was then used to monitor the vibration performances, thus completing the construction of the digital twin model. The proposed method was applied to monitor the vibration performances of a herringbone gear transmission system. The results show that the digital twin model may reflect the vibration performances of the gear transmission systems accurately during operation. Under different rotational speeds, the maximum relative error among the simulation and experimental results at each measurement point is as 15.21%, which verifies the effectiveness of the proposed method.

Key words: digital twin, gear transmission system, model update, vibration monitoring, surrogate model

摘要:

为更好地监测齿轮传动系统在运行过程中的振动状态,提出了基于数字孪生的齿轮传动系统振动性能监测方法。考虑物理模型、数字孪生模型和二者之间的交互,建立了齿轮传动系统的数字孪生框架。基于广义有限元法建立了齿轮传动系统的机理模型,利用其生成的仿真数据构建了代理模型,以替代计算耗时的机理模型。通过Sobol灵敏度分析方法对模型参数进行了筛选,结合试验数据采用遗传算法进行模型更新,并使用更新后的模型进行振动监测,从而完成了数字孪生模型的构建。以人字齿轮传动系统为例,应用所提方法对其进行了振动性能监测。研究结果表明,建立的数字孪生模型能准确地反映齿轮传动系统在运行过程中的振动性能,不同转速下经过更新后的模型在各个测点处仿真值与试验值之间的相对误差最大值为15.21%,验证了所提方法的有效性。

关键词: 数字孪生, 齿轮传动系统, 模型更新, 振动监测, 代理模型

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