ENERGY STRATEGY AND PLANNING INSTRUCTIONS FOR HIGH-SPEED ROLLING STOCKS

STRATEGIA ENERGETICA E INDICAZIONI PROGETTUALI PER I ROTABILI AD ALTA VELOCITA'

ON LINES DESIGNED FOR HIGH-SPEED RUNNING, A REDUCTION OF THE WEIGHT BEARING ON EACH OF THE ROLLING STOCK'S AXLES, AND ADEQUATE DISTRIBUTION OF VERTICAL SUSPENSION STIFFNESS ALLOWS THE DYNAMIC FORCES ACTING ON THE MOST IMPORTANT COMPONENTS SUCH AS AXLES, BOGIES AND BODIES TO BE REDUCED. THE EUROPEAN COMMUNITY SUGGESTS THAT EXTERNAL NOISE LEVELS INCREASE BY NO MORE THAN 6 DB AS THE ROLLING STOCKS SPEED VARIES BETWEEN 200 AND 300 KMPH; THIS LIMIT IS DIFFICULT TO ACHIEVE DUE TO THE NOISE OF THE MOTORS AND ABOVE ALL THAT GENERATED BY TRAIN'S AERODYNAMIC EFFECT. IMPROVED AERODYNAMICS CAN, TO A CERTAIN EXTENT, CONTAIN THE NEED FOR INCREASED INSTALLED HORSEPOWER AND THE PRESSURE WAVES GENERATED AS TRAINS PASS EACH OTHER OR ENTER TUNNELS.THIS IMPROVEMENT DOES NOT, HOWEVER, ELIMINATE THE NEED FOR PRESSURIZED COMPARTMENTS. A CONSEQUENCE OF THE INCREASE IN ROLLING STOCK SPEED IS THE INEVITABLE INCREASE IN RUNNING AND ENERGY COSTS, EVEN THOUGH CONSCIENTIOUS DESIGN PLANNING CAN HELP TO CONTAIN THESE COSTS. A TIGHT REIN CAN BE KEPT ON RUNNING COSTS THROUGH CAREFUL DESIGN OF THE COMPONENT ELEMENTS OF THE ROLLING STOCK; ENERGY COSTS HAVE TO BE COMPARED WITH THE COSTS OF AIR TRANSPORT AND BE SHOWN TO BE LOWER FOR A GIVEN COMMERCIAL SPEED AND LIVE WEIGHT CARRIED. TO ACHIEVE THIS RESULT THE RELATIVE ENERGY ADVANTAGES OF THE TWO FORMS OF TRANSPORT HAVE TO BE ESTABLISHED, USING THE ESTABLISHED HIGH-SPEED PASSENGER RAIL SYSTEMS AND PROBABLE INNOVATIVE TRAINS AS POINTS OF REFERENCE AND STUDYING THE DISTRIBUTION OR CONCENTRATION OF POWER, THE LENGTH OF THE TRAINS, THEIR WEIGHT AND ADHERENCE, ETC.

  • Availability:
  • Corporate Authors:

    N/A

    ,   United States 
  • Authors:
    • PANAGIN, R
  • Publication Date: 1995-6

Language

  • Italian

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Filing Info

  • Accession Number: 00715752
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD
  • Created Date: Jan 31 1996 12:00AM