Vertical ride testing of 3-car A.P.T.-pop train May - July 1977 the effect of gangway connections & inter-vehicle dampers (IM-DOS-047)

3. CONCLUSIONS 1. The rail joint harmonic/bogie pitch coincidence frequency dominates the Pilot car vertical acceleration spectrum even though the airsprings attenuate the activity at this frequency by a factor of 15-20. 2. Addition of inter-vehicle dampers degrades the vertical ride at the vehicle ends by up to...