Document ID: chunk:federal_register_of_legislation:F2010C00153:body:0:p10
Version: federal_register_of_legislation:F2010C00153
Segment Type: other
Provision Reference: 
Character Range: 29437–32616

residual deformation that would interfere or degrade the function of the assembly or any breaks, cracks and separation of components.  The static forces must be maintained for not less than 10 seconds. Alternatively approval can be by 'Approved' calculations as per clause 14.2.3.
14.2.1.                          'Drawbars'– Static Testing
14.2.1.1.                    Longitudinal Tension and Compression
14.2.1.1.1.              For trailers up to 23.5 tonnes 'ATM' other than 'Converter Dollies', (N) 1.5 x 9.81 x 'ATM' (kg).
14.2.1.1.2.              For trailers over 23.5 tonnes 'ATM' and all 'Converter Dollies', the lesser of 350 kN or 2.25 x 'Coupling' 'D-value' (kN) for the 'Coupling' 'D-value' at which the 'Drawbar' is rated.
14.2.1.2.                    Transverse Thrust
14.2.1.2.1.              For trailers up to 4.5 tonnes 'ATM', (N) 0.5 x 9.81 x 'ATM' (kg).
14.2.1.2.2.              For trailers over 4.5 tonnes 'ATM' without dolly locking devices, 120 kN. Alternatively, the following may be used:
14.2.1.2.2.1.                 'Single Axle' trailer or a 'Dog Trailer' with a 'Single Axle' front "Axle Group', (N) 11 x M/(DL).
14.2.1.2.2.2.                 'Tandem Axle Group' trailer or a 'Dog Trailer' with a 'Tandem Axle Group' front "Axle Group', (N) 18 x M/(DL-1).
14.2.1.2.2.3.                 'Triaxle Group' trailer or a 'Dog Trailer' with a 'Triaxle Group' front "Axle Group', (N) 24 x M/(DL-1.6)

                where:  M is the 'GGALR' (kg) for the front 'Axle Group' of  'Dog Trailers' or the 'GTM' (kg) for other trailers.

                 DL is the 'Drawbar Length' (m)

14.2.1.2.3.              For trailers over 4.5 tonnes 'ATM' with dolly locking devices, (N) 0.5 x 9.81 x 'ATM' (kg).
14.2.1.3.                    Vertical Tension and Compression:
14.2.1.3.1.              For trailers up to 4.5 tonnes 'ATM', (N) 0.5 x 9.81 x 'ATM' (kg).
14.2.1.3.2.              For trailers over 4.5 tonnes 'ATM', 120 kN. Alternatively, the following may be used:
14.2.1.3.2.1.                 Rigid 'Drawbar' trailers, (kN) 2.25 x 'V-value' (kN), where the 'V-value' is as calculated in AS 2213.1:2001 using the equations in clause 7 of the standard with 'a' = 2.4.
14.2.1.3.2.2.                 Hinged 'Drawbar' trailers, +/- 10 kN.

14.2.2.                           'Drawbars'– Dynamic Testing
14.2.2.1.                    For 'Drawbars' for 'Pig Trailers' up to 3.5 tonnes 'ATM' and hinged 'Drawbars' for other trailers, a horizontal oscillating force of (kN)  +/-  0.6 x 'Coupling' 'D-value' (kN) in the longitudinal direction concurrently for at least 2 million cycles.  The frequency must not exceed 35 Hz and must be chosen so as not to coincide with any natural frequencies of the system:
14.2.2.2.                    For rigid 'Drawbars' for 'Pig Trailers' over 3.5 tonnes 'ATM', a horizontal alternating force of (kN) +/-  0.6 x 'Coupling' 'D-value' (kN) acting in the longitudinal axis of the 'Coupling' and a vertical alternating force of (kN) static vertical 'Coupling' load +/-  (0.6 x 'Coupling' 'V-value' (kN)) in the vertical axis of the 'Coupling' asynchronously for at least 2 million cycles.

         The static vertical 'Coupling'