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ACCELERATED LOADING FACILITY (ALF) DESIGN
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05/07/2007 |
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A state of the art system for mobile Accelerated Pavement Testing (APT)
Basis for the Accelerated Loading Facility (ALF) Design – Energy Conservation
The basis for the ALF design is energy conservation. The test wheels are driven by relatively low power (11 kW) geared electric motors. These motors are only required to overcome rolling resistance, grade and crossfall. For each load cycle, kinetic energy is converted to potential energy as the load trolley moves up the curved rails at each end of the machine, then back into kinetic energy for the subsequent load cycle.
Main Features of the ALF:
- Innovative Australian design
- Linear tracking system with 12 m test length
- One way trafficking with driven wheels (not towed)
- Full scale loads of 40 kN to 100 kN (larger capacities available)
- Suitable for all truck tyre types (steer, dual, wide single)
- Transverse distribution of load paths (user programmable)
- Air bag suspension
- Automatic control system and fail-safe operation
- Mobile – readily transported on-site and between sites
- Width: 4 m (operating), 3.2 m (transport)
- Height: 5.7 m (operating) 4.4 m (transport)
- Length: 26.3 m, Mass: 45 tonne
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