摘要
水润滑轴承在使用中具有空间密闭性特征,现有水膜压力、轴瓦变形等轴承性能参数监测中,由于传感器难以靠近测点,或采用轴/轴承打孔安装方式,又对轴系结构造成较大损伤,致使准确的轴承性能数据难以获取。针对上述问题,提出了一种薄膜传感器嵌入式水润滑轴承,可在对轴瓦损伤降至最低的前提下使传感器直接靠近测点,实现对轴承运行状态的实时监测与调控。首先设计了嵌入式水润滑轴承结构,然后建立了水润滑轴承理论数学模型,最后通过ANSYS软件建立轴承三维仿真模型并进行流固耦合分析,研究了水膜压力、轴瓦变形分布规律。研究结果表明:受开槽位置的影响,开槽处水膜压力分布产生波动,轴瓦最大变形增长了3.67%;最大水膜压力随供水压力、轴转速的增大而增大,轴瓦变形也随之增加。
As water-lubricated bearings have spatial sealing characteristics in using,it is difficult for sensors to get close to the measuring points in the existing monitoring of bearing performance parameters such as water film pressure and bearing deformation.It is also diffiult to obtain accurate bearing performance by shaft/bearing drilling installation method which causes great damage to the shafting structure.To solve the above problems,thin film sensors embedded water-lubricated bearing is proposed,which can make the sensor directly close to the measuring point on the premise of minimizing the damage of the bearing bush,so as to realize the real-time monitoring and regulation of the running state of the bearing.Firstly,the sensor embedded water lubricated bearing structure is designed,and then the theoretical mathematical model of water-lubricated bearing is established.Finally,the three-dimensional simulation model of the bearing is established by ANSYS software and fluid-structure coupling analysis,and the distribution law of water film pressure and bearing deformation is studied.The results show that the pressure distribution of water film fluctuates under the influence of the slot position,and the maximum deformation increases by 3.67%at the slot of bearing bush.The maximum water film pressure increases with the increase of water supply pressure and shaft speed,and the bearing deformation also increases.
作者
张楠
王楠
王丹丹
赵一帆
景敏
ZHANG Nan;WANG Nan;WANG Dandan;ZHAO Yifan;JING Min(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723000,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong 723000,China)
出处
《陕西理工大学学报（自然科学版）》
2023年第3期1-7,共7页
Journal of Shaanxi University of Technology:Natural Science Edition
基金
国家自然科学基金项目(51605269)
陕西省高校青年杰出人才支持计划项目(SLGQD1802)
陕西理工大学重点培育项目(SLG2102)
陕西理工大学研究生创新基金项目(SLGYCX2203)。
关键词
水润滑轴承
薄膜传感器
流固耦合
水膜压力
轴瓦变形
water-lubricated bearing
film sensor
fluid-structure interaction
film pressure
deformation of bearing bush
