在線式鐵譜儀中磨粒的分布研究
[Abstract]:In the process of operation of mechanical equipment, due to the relative motion and contact of the surface of the parts of the friction pair, friction and wear will inevitably occur. The wear failure of the parts is the most common and the most important form of failure in the machinery. The monitoring of oil abrasive particles is an important means to monitor the wear state of mechanical equipment. In view of the shortcomings of the existing on-line monitoring technology of abrasive particles, this paper is based on ferrography analysis technology. The on-line monitoring technology of abrasive particles is studied as follows: (1) A full flow on-line abrasive particle monitoring sensor with comprehensive monitoring information is developed. Based on the ferrography analysis method, a full flow on-line ferrography analysis sensor based on image is developed according to the principle of ferrography analysis, and a suitable experimental platform is built. (2) the deposition distribution of abrasive particles in on-line iron spectrometer is studied, and the deposition distribution of abrasive particles under different conditions is studied by changing the parameters of magnetic field and flow channel. In this process, based on the effect of magnetic field on the deposition distribution of abrasive particles, the magnetic field distribution of annular magnet under different nesting and assembly modes is studied by using annular magnet as the source of magnetic field. (3) the particle size distribution of abrasive particles in on-line iron spectrometer was studied. The grain size of abrasive particles in different sedimentary areas was measured by histogram specification and other image processing methods, and the rectangular distribution maps of abrasive particle sizes in different sedimentary areas were drawn on the basis of the particle size distribution theory of particle groups. The difference of particle size distribution in different sedimentary regions is studied, and the distribution form of abrasive particle size in the whole sedimentary area is given.
【學(xué)位授予單位】:南京航空航天大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:TH117.1;TH165.3
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