불규칙 궤도외란을 받는 자기부상열차의 진동해석 및 2차현가장치 동적설계

Vertical Vibration Analysis of a Magnetically Levitated Vehicle due to Random Track Disturbances and Dynamic Design of Its Secondary Suspensions

A dynamic design process was proposed for the design of the secondary suspension characteristics of a magnetically levitated vehicle(MAGLEV). It is based on a ride quality-secondary stroke trade-off. For the vertical vibration analysis, a magnetically levitated vehicle was simplified as 2 d.o.f. linear model, and FRA's class-6-track irregularities were considered as exciting disturbances. The optimum value of airspring stiffness and damping coefficient for the secondary suspension of a prototype MAGLEV was determined using this proposed design process.