Document ID: chunk:federal_register_of_legislation:F2012C00535:front:0:p7
Version: federal_register_of_legislation:F2012C00535
Segment Type: other
Provision Reference: 
Character Range: 20151–23085

local buckling,
          - kinetic energy is absorbed due to deformation.

       2.31. "Plastic hinge" (PH) means a simple plastic zone formed on a rod-like element (single tube, window column, etc).

       2.32. "Cantrail" means the longitudinal structural part of the bodywork above the side windows including the curved transition to the roof structures.  In the rollover test the cantrail (in the case of a double deck coach, the cantrail of the upper deck) hits the ground first.

       2.33. "Waistrail" means the longitudinal structural part of the bodywork below the side windows. In the rollover test the waistrail (in the case of a double deck coach, the waistrail of the upper deck) may be the second area to contact the ground after initial deformation of the vehicle cross-section.

       3. APPLICATION FOR APPROVAL

       3.1. The application for approval of a vehicle type with regard to the strength of its superstructure shall be submitted by the vehicle manufacturer or by his duly accredited representative to the Administrative Department.

       3.2. It shall be accompanied by three copies of each of the undermentioned documents and by the following particulars:

3.2.1. The main identifying data and parameters of the vehicle type, or group of vehicle types;

       3.2.1.1. General layout drawings of the vehicle type, its bodywork and its interior arrangement with the main dimensions.  Seats which have passenger restraints shall be clearly marked and their positions in the vehicle shall be accurately dimensioned;

       3.2.1.2. The unladen kerb mass of the vehicle, and the associated axle loads;

       3.2.1.3. The exact position of the unladen vehicle's centre of gravity together with the measuring report.  To determine the centre of gravity position the measuring and calculation methods described in Annex 3 shall be used;

       3.2.1.4.              The total effective vehicle mass, and the associated axle loads.

       3.2.1.5. The exact position of the centre of gravity of the total effective mass of the vehicle, together with the measuring report.  To determine the centre of gravity position, the measuring and calculation methods described in Annex 3 shall be used.

       3.2.2. All the data and information which are needed to evaluate the worst case criteria in a group of vehicle types:

       3.2.2.1. The value of reference energy (ER) which is the product of the vehicle mass (M), the gravity constant (g) and the height (h1) of centre of gravity with the vehicle in its unstable equilibrium position when starting the rollover test (see figure 3)

        where:

              M = Mk,  the unladen kerb mass of the vehicle type if there are no occupant restraints, or,
                Mt, total effective vehicle mass when occupant restraints are fitted, and
              Mt = Mk + k.Mm,  where k = 0.5 and Mm is the total mass of the restrained occupants (see