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Characteristics of Vibration Condition Indicator with Gear Tooth Damage
이동형(Dong-Hyung Lee),이웅용(Woong-Yong Lee),문경호(Kyung-Ho Moon) Korean Society for Precision Engineering 2015 한국정밀공학회지 Vol.32 No.7
In the development of a vibration-based condition monitoring system in gearbox, one of the most important research topics is a quantitative analysis and test of the effect of gear damage on vibration of gearbox. This paper presents the evaluation result of vibration condition indicator according to the gear tooth damage through the vibration test of gearbox. The dynamic load test was performed with high speed railway (KTX)’s gearbox. The vibration of gearbox was measured according to a rotational speed change with the common gear fault modes, such as pitting and tooth breakage. The characteristics and the possibility of applying of vibration condition indicator on condition monitoring system were analyzed. As a result, the value of most condition indicator is gradually increased with the severity of gear faults. The NA6 indicator shows a low variation with the rotational speed change and high sensitivity in accordance with the gear fault.
지해영(Jee Hae-young),박태호(Park Tae-ho),한종원(Han Jong-won),이웅용(Lee Woong-yong),장서일(Chang Seo-il) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
The urban railway have been planned not only subway, but also elevated railway. Therefore, at a dwelling site that railway passes by, it is steadily increasing civil complaints for railway noise. This study purposes are getting information from the areas where has damaged by railway noise and suggesting management controlled by proper solutions. By using GIS, noise map previously select the noise predictive areas is noise reduction area. In addition, the suitable noise reduction plan is shown by A.N.M.S (Automatic Noise Measurement System) is installed to find out noise characteristics in the railway ground.