Tham khảo tài liệu 'intro predictive maintenance 2e episode 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 9 TRIBOLOGY Tribology is the general term that refers to design and operating dynamics of the bearing-lubrication-rotor support structure of machinery. Several tribology techniques can be used for predictive maintenance lubricating oil analysis spectrographic analysis ferrography and wear particle analysis. Lubricating oil analysis as the name implies is an analysis technique that determines the condition of lubricating oils used in mechanical and electrical equipment. It is not a tool for determining the operating condition of machinery. Some forms of lubricating oil analysis will provide an accurate quantitative breakdown of individual chemical elements both oil additive and contaminates contained in the oil. A comparison of the amount of trace metals in successive oil samples can indicate wear patterns of oil-wetted parts in plant equipment and will provide an indication of impending machine failure. Until recently tribology analysis has been a relatively slow and expensive process. Analyses were conducted using traditional laboratory techniques and required extensive skilled labor. Microprocessor-based systems are now available that can automate most of the lubricating oil and spectrographic analysis thus reducing the manual effort and cost of analysis. The primary applications for spectrographic or lubricating oil analysis are quality control reduction of lubricating oil inventories and determination of the most costeffective interval for oil change. Lubricating hydraulic and dielectric oils can be periodically analyzed using these techniques to determine their condition. The results of this analysis can be used to determine if the oil meets the lubricating requirements of the machine or application. Based on the results of the analysis lubricants can be changed or upgraded to meet the specific operating requirements. In addition detailed analysis of the chemical and physical properties of different oils used in the plant can in some cases allow consolidation
