The thermo-mechanical coupling dynamic analysis of gear-rotor-bearing system with multiple dynamic clearances

IF 4.5 1区工程技术 Q1 ENGINEERING, MECHANICAL

Mechanism and Machine Theory Pub Date : 2025-08-11 DOI:10.1016/j.mechmachtheory.2025.106169

Shuai Mo , Yingxin Zhang , Yiheng Liu , Bowei Yao , Sujiao Chen , Yurong Huang , Wenai Shi , Nanjiang Peng , Haruo Houjoh , Wei Zhang

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引用次数: 0

Abstract

To accurately describe the dynamic behavior of a gear-rotor-bearing system, it is essential to consider the interplay between thermal effects and dynamics. Therefore, this study aims to develop a real-time coupling model that integrates thermal and dynamic aspects of the gear-rotor-bearing system. The objective of this model is to capture the combined effects of various nonlinear factors, including dynamic clearances caused by thermal deformation, thermoelastic coupling stiffness, non-uniform load distribution in bearings, and the multi-meshing state of the gear. To achieve this, the study introduces a stepwise coupled thermodynamic and dynamic associated solution method, which is used to evaluate the effects of thermal influences on dynamic characteristics, including vibration amplitude, dynamic behavior, thermal sensitivity, and meshing quality. The results demonstrate the significant impact of thermal effects on the dynamic behavior of the mechanical system, highlighting that these effects cannot be ignored. This research enhances the accuracy and comprehensiveness of dynamic modeling and multi-physical field coupling analysis methods for gear-rotor-bearing system, providing theoretical foundations that support designers in thoroughly assessing engineering variables and identifying opportunities to improve gear performance.

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多动间隙齿轮-转子-轴承系统热-机耦合动力学分析

为了准确地描述齿轮-转子-轴承系统的动力学行为，必须考虑热效应和动力学之间的相互作用。因此，本研究旨在建立一个实时耦合模型，集成了齿轮-转子-轴承系统的热动力学方面。该模型的目标是捕捉各种非线性因素的综合影响，包括由热变形引起的动态间隙、热弹性耦合刚度、轴承中的非均匀负载分布以及齿轮的多重啮合状态。为此，本研究引入了一种热力与动力逐步耦合的关联求解方法，用于评估热影响对动态特性的影响，包括振动幅值、动态行为、热敏度和啮合质量。结果表明，热效应对机械系统的动态行为有显著影响，强调这些影响不可忽视。本研究提高了齿轮-转子-轴承系统动力学建模和多物理场耦合分析方法的准确性和全局性，为设计人员全面评估工程变量和确定改进齿轮性能的机会提供了理论基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mechanism and Machine Theory 工程技术-工程：机械

CiteScore

9.90

自引率

23.10%

发文量

450

审稿时长

20 days

期刊介绍： Mechanism and Machine Theory provides a medium of communication between engineers and scientists engaged in research and development within the fields of knowledge embraced by IFToMM, the International Federation for the Promotion of Mechanism and Machine Science, therefore affiliated with IFToMM as its official research journal. The main topics are: Design Theory and Methodology; Haptics and Human-Machine-Interfaces; Robotics, Mechatronics and Micro-Machines; Mechanisms, Mechanical Transmissions and Machines; Kinematics, Dynamics, and Control of Mechanical Systems; Applications to Bioengineering and Molecular Chemistry