为避免因船舶水润滑尾轴承异常振动导致的严重机械故障，威胁船舶运行安全，研究船舶水润滑尾轴承异常振动自适应控制方法。依据水润滑尾轴承的异常振动产生原因，设计水润滑尾轴承异常振动控制结构。利用位移传感器采集实际水润滑尾轴承转子位移信号，使用滑膜观测器观测水润滑尾轴承的不平衡扰动力，将其作为惯性主轴位置校正器的输入，得到扰动引起位移偏差的补偿量。结合水润滑尾轴承转子理想位移值，计算轴承转子位移信号偏差值，将其作为PID控制器的输入控制量，输出轴承异常振动控制量，实现其异常振动自适应控制。实验结果表明，该方法可有效控制船舶水润滑尾轴承异常振动，提高轴承的工作稳定性。
To avoid serious mechanical failures caused by abnormal vibration of ship's water lubricated stern bearings and threaten the safety of ship operation, a self-adaptive control method for abnormal vibration of ship's water lubricated stern bearings is studied. Design a control structure for abnormal vibration of water lubricated stern bearings based on the causes of abnormal vibration. Using displacement sensors to collect actual displacement signals of the water lubricated stern bearing rotor, using a sliding film observer to observe the unbalanced disturbance force of the water lubricated stern bearing, and using it as input to the inertial spindle position corrector, the compensation amount for displacement deviation caused by disturbance is obtained. Combining the ideal displacement value of the water lubricated stern bearing rotor, calculate the deviation value of the bearing rotor displacement signal, use it as the input control variable of the PID controller, output the abnormal vibration control variable of the bearing, and achieve adaptive control of its abnormal vibration. The experimental results show that this method can effectively control the abnormal vibration of ship water lubricated stern bearings and improve the working stability of the bearings.
2024,46(8): 65-69 收稿日期：2023-9-9
DOI：10.3404/j.issn.1672-7649.2024.08.012
分类号：TP391
基金项目：辽宁省高等学校新型智库联盟2023年度智库专项课题（LJKZK-Y-202306）
作者简介：冯进成(1982-),男,硕士,讲师,研究方向为机械设计制造及自动化
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