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http://dx.doi.org/10.5139/JKSAS.2009.37.2.193

Effects of Cavitation and Drop Characteristics on Oleo-Pneumatic Type Landing Gear Systems  

Han, Jae-Do ((주)한얼시스템)
Lee, Young-Sin (충남대학교 기계설계공학과)
Kang, Yeon-Sik ((주)한얼시스템)
Ahn, Oh-Sung (항공우주연구원 스마트무인기 사업단)
Kong, Jeong-Pyo (충남대학교 기계설계공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.2, 2009 , pp. 193-200 More about this Journal
Abstract
This paper investigated the drop characteristics of oleo pneumatic type landing gear for small aircraft and the effects of cavitations in modeling the landing gear system. The landing gear system employed a simple oleo pneumatic type damper without a metering pin. In general, oleo-pneumatic type landing gears are light-weighted because of it's simplicity, yet they offer excellent impact absorption characteristics. In this study, the landing gear system was modeled using MSC ADAMS, which offers a drop simulation module. After modeling the system, a series of testing was conducted, using a prototype landing gear system, to validate the analysis model and simulation results. The effect of cavitation was considered in the simulation model to obtain a better correlation between the test and simulation results. The results show that adding the cavitation effect in the simulation model significantly improved the simulation model and better captured the dynamic behaviors of the landing system. Using the 'cavitation' model, dynamics characteristics of the landing gear were further evaluated for other landing conditions, such as landing in various angles of slopes.
Keywords
Cavitation; Drop Characteristic; Landing Gear;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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