http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조수호(Soo-Ho Jo),오현석(Hyunseok Oh),윤병동(Byeng D. Youn),서보성(Boseong Seo) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
Solenoid valves are widely used for the control of braking systems in urban railway vehicles. Due to the prevalence and criticality of solenoid valves in the braking systems, it is desirable to understand the dynamics of solenoid valves. Moreover, with the in-depth understanding, an efficient physics-based approach can be developed to diagnose the condition of the solenoid valves. To this end, this paper attempted to develop a multiphysics analytical model to predict the dynamic behavior of the solenoid valves. Complex interaction between electromagnetics, fluidics, and mechanics is analyzed. The dynamic behaviors are mathematically formulated using ordinary differential equations in conjunction with their physics. The differential equations are solved with numerical methods. Lastly, the performance of the multiphysics analytical model is evaluated by comparing the modeling and experimental results. We anticipate that the proposed model is useful to predict the dynamic behavior of the solenoid valves since it does not require high computing power compared to computational fluid dynamics (CFD) software packages.