李玉奇,龙天亮,温传美,靳龙

• 1:广西科技大学机械与汽车工程学院
• 2:广西科技大学电子工程学院
• 3:东北大学机械工程与自动化学院

摘要(Abstract)：

螺栓连接转子广泛应用于航空发动机、燃气轮机和电力机械等能源动力设备中，工作过程中轴的弯曲和扭转变形交替出现，导致连接结合面产生相对切向和扭转位移，结合面相对刚度对系统工作效率和运动稳定性具有明显影响。对此，考虑螺栓连接结构的相对切向和扭转位移，基于能量法和拉格朗日方程建立螺栓连接转子系统运动微分方程，通过数值积分获得转子系统分岔图、瀑布图以及连接结构竖直方向和扭转位移等，分析螺栓连接结构偏心距和偏心相位差对系统响应的影响。研究结果表明：连接结构偏心距增大会使轴承变柔度振动减弱，接结构扭振角幅值随着偏心距的增大而变大，最小值变小，波动范围增大；连接结构偏心相位差变大会导致系统进入倍周期分岔运动转速升高，扭振最大幅值随之减小、最小幅值随之变大。此外，连接结构偏心相位对系统响应频率成分没有明显影响。

关键词(KeyWords)： 螺栓连接转子;弯扭耦合;动力学特性;扭转刚度

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金资助（项目任务书编号：2022GXNSFBA035488）;; 广西高校中青年教师科研基础能力提升项目（2023KY0362）;; 广西科技大学研究生教育创新计划项目（GKYC202313）;; 广西研究生教育创新计划项目（YCSW2023475）

作者(Author): 李玉奇,龙天亮,温传美,靳龙

DOI: 10.19356/j.cnki.1001-3997.20260402.019

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