초록

Dynamic behaviors of the Korean High-speed Train(KHST) have been analyzed to investigate the performance on the stability, the safety and the ride comfort. Multi-body dynamics analysis program using Recursive method, called RecurDyn, have been employed in the numerical simulation. To model the wheel-rail contact, the RecurDyn uses its built-in module which uses the square root creep law. The accuracy of the rail module in RecurDyn. however, decreases in the analysis of flange contact because it linearizes the shape of the wheel and rail. To solve this problem, a nonlinear contact theory have been developed that considers the profiles of the wheel and rail. The results show that the KHST still needs more stability. The problem should be solved by the examinations of module and modeling.

키워드

• 철도차량 동역학;
• 현가장치;
• 승차감;
• 안정성;
• 한국형 고속철도;
• 안전성;
• 다물체 동역학

• Railway Dynamics;
• Suspension;
• Ride Comfort;
• Stability;
• KHST;
• Safety;
• Multi-body dynamics;

파일

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