故障齿轮的振动分析和故障诊断.docx
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 故障 齿轮 振动 分析 故障诊断
- 资源描述:
-
1、故障齿轮的振动分析和故障诊断摘要:齿轮作为现代机械设备中使用极其广泛的连接和传动零部件,故障发生概率比较高,一旦发生故障会造成停机停产,甚至威胁到人员安全。目前齿轮故障诊断方式比较多,但是传统方法在进行诊断时未将齿轮振动信号的非线性因素考虑在内。为了弥补这方面的局限,本文在总结和借鉴前人研究成果的基础上,采用分形理论这一非线性分支学科,将其与具有非线性特点的神经网络相结合进行齿轮的故障诊断。本文首先介绍了齿轮故障诊断的研究意义和发展现状,分析了传统故障诊断方法的不足,在此基础上提出了本文的研究内容和研究方法。针对齿轮故障,对典型故障进行了研究介绍,分析了齿轮运行时的振动类型,然后选取三种常见典
2、型故障从有限元的角度分析了振动特性。简单介绍了分形理论与神经网络理论,证明了这种方法的有效性和正确性。关键词:故障诊断,齿轮,有限元,分形理论,神经网络VIBRATION ANALYSIS AND FAULT DIAGNOSIS FOR FAULT GEARAbstract:As an extremely wide used component of coupling and transmiin modern mechanical equipment,the gear has a high fault probability.Its fault will cause an outage,shu
3、tdown,and even a threat to the safety of personnel.There are a lot of gear fault diagnosis methods,but the traditional methods dont take the nonlinear factors into account when making the fault diagnosis.In order to compensating for the limitations in this regard,based on the research achievement of
4、 previous study,this paper presents a new gear fault diagnosis method which combines the nonlinear branch discipline-the fractal theory and neural network which has nonlinear characteristics.Firstly,this paper introduces the research significance and development of the gear fault diagnosis,analyzes
5、the deficiencies of the traditional methods of fault diagnosis,and then presents the research content and method.For the gear fault,this paper does research and introduces of the classical faults, analyzes the types of gear vibration when running,and chooses three classic types of gearfaults to anal
6、yze its vibration characteristics by the finite element method.Then this papersimulates classic faults of gear on homemade test bed to acquire the vibration signals ofthe gear.This realizes the combination diagnosis via the fractal theory and neural network.By the double verification of theoretical
7、data and experimental result,and the high diagnosisaccuracy rate,this method proves to be correct and validated.A gear fault diagnosis system is designed by the Visual Basic and MATALB,whichhas a good user interface and easy operation.This system makes a summary of the research content,which makes t
展开阅读全文
图海文库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。


某型汽车仪表盘注塑模具设计.doc

