下载后可任意编辑 毕 业 设 计(论文)`题 目：基于 Matlab 的转子故障振动信号分析院 系机械工程系专业班级学生姓名指导老师二○一六年六月下载后可任意编辑基于 Matlab 的转子故障振动信号分析摘要随着机械行业的日益进展，转子等旋转机械的故障日渐趋多，转子的故障诊断技术受到越来越多的重视，并在世界范围内取得了长足的进步。作为大型机器中不可或缺的部件，有着举足轻重的作用，但自身也存在缺点：造价很高，结构纷繁杂乱，假如出现受损的情况，则需要很长的时间来维修，故对其安全可靠性具有较高的要求。对发电机及其转子进行状态监测和信号分析，避开更大事故的产生，对于安全生产具有重要意义，对于工业进展具有积极的推动作用。转子故障类型主要有四种：转子不平衡、转子不对中、动静碰摩以及油膜涡动与振荡。首先明确转子的故障类型及故障机理，掌握不同类型的故障特征，能够准确区分转子的几种故障类型。然后应用Matlab软件，在Matlab软件中建立起转子故障图形程序，利用Matlab中的程序对仿真信号及故障数据进行分析，包括信号的时域图、频域图以及轴心轨迹图，最后与已知的故障机理进行比较，检验其正确性。关键字：转子；Matlab；故障机理；信号分析ANALYSIS OF ROTOR FAULT VIBRATION SIGNAL BASED ON Matlab下载后可任意编辑AbstractWith the development of the machinery industry, the rotor and other rotating machinery are becoming more and more common. Rotor fault diagnosis technology has been paid more and more attention, and has made great progress in the world. As an indispensable part of the large machine, although it has a pivotal role, it comes with own shortcomings: high cost, complex structure, a long time to repair the damaged. Therefore, it requires high safety and reliability. The condition monitoring and signal analysis of the generator and its rotor are of great significance to the safety production, and they play a positive role in promoting the development of the industry.There are four kinds of rotor fault types: rotor unbalance, rotor misalignment, static and dynamic rub impact and oil...
