Theoretical investigation on self-recovery regulation method for diesel engine misalignment through co-simulation

• 作者: Jiang Zhinong Wang Zijia Mao Zhiwei Zhang Jinjie Wang Chenguang Huang Yifei
• 来源期刊: 高技术通讯（英文版）
• 年，卷（期）: 2021,（3）
• 页码范围: 238-248
• 页数: 11页
• 语种: 英文
• DOI: 10.3772/j.issn.1006-6748.2021.03.002

摘要

Misalignment is one of the most common faults for the diesel engine.In order to eliminate the misalignment fault of the diesel engine in the process of operation,a targeting self-recovery regula-tion system is constructed by using a movable base and displacement sensors.Misalignment is moni-tored and detected in real time,the value of misalignment is calculated rapidly and accurately,and-intelligent decision is made.Then,the base is moved reversely with a definite target to drive the shaft to translate or rotate,so that the shafts can be recovered to alignment online.A co-simulation model for the self-recovery system is established which consists of a dynamic model of the crankshaft system and control model.The self-recovery regulation process of misalignment is simulated.The simulation results show that the system can accurately calculate the misalignment values,with an er-ror of less than 5 ％,and can automatically eliminate the misalignment fault of the diesel engine on-line.The research results provide theoretical support for the self-recovery regulation of misalignment fault,and due to the universality of structure and principle,the self-recovery system is not only suit-able for diesel engine,but also for other rotating machineries.