MIGRATING POPULAR DESIGNS
INTO LAW
Blueprint Vehicles
Prime Mover and Semi-trailer
Combinations
Slide 2
Dr Hans Prem
Dr Luan Mai
Mechanical System Dynamics Pty Ltd
(MSD)
Melbourne, Australia
Slide 3
Context
• NTC funded project;
• Aimed at increasing PBS take-up;
• Deliver safe, high-capacity/productivity vehicles;
• Focus is 20m 6-axle prime mover and semi-trailer;
• Blueprint design approach;
• Design flexibility with broad application;
• Available to everyone at low (no?) cost.
Slide 4
2010 Survey of Motor Vehicle Use
(Australian Bureau of Statistics)
Number of Vehicles
Slide 5
2010 Survey of Motor Vehicle Use
(Australian Bureau of Statistics)
Total Kilometres Travelled
Slide 6
2010 Survey of Motor Vehicle Use
(Australian Bureau of Statistics)
Total Tonne-Kilometres Travelled
Slide 7
Design Goals
(6-axle prime mover and semi-trailer)
• PBS Level 1 Performance/Access;
• Up to 20m overall length;
• GML, CML and HML loading and 6.5t on steer;
• Maximum load space;
• Based on available equipment;
• Modularity and interchangeability.
Slide 8
Process
• Stakeholder consultation;
• Parameters set to meet industry needs;
• Define Blueprint envelope;
• Develop generalised Blueprint design approach;
• Prepare Formal PBS application.
Slide 9
Outcomes
• Formal PBS approval;
• Generalised approach to Blueprint design;
• Each design is stand alone;
• One or more designs easy to produce and approve;
• Support tool (beta version, final testing).
Slide 10
The formal PBS application
that underpins this project is complex…
Slide 11
Dimension Set #2 of 3
(example)
Slide 12
Front Overhang Detail for Dimension Set #2 of 3
Slide 13
Support Tool
(Excel Spreadsheet Based)
• Dimensions;
• Tyres;
• Powertrain;
• Loads, CGs and Suspensions;
• Drawings produced;
• Submit entire spreadsheet as application.
Slide 14
Dimensions
(worksheet)
Slide 15
Dimensions
(worksheet)
Slide 16
Tyres
(worksheet)
• Data can be supplied by tyre manufacturers;
• Or, each tyre manufacturer to supply a list of
tyres that meet this specification.
Slide 17
Powertrain
(worksheet)
• Data can be supplied by manufacturers;
• Or, each manufacturer to supply a list of
engine, gearbox, final drive ratios that meet this
specification.
Slide 18
Loads, CGs and Suspensions
(worksheet)
• Data can be supplied by manufacturers;
• Or, applicant can work with manufacturers.
Slide 19
Drawing
Spreadsheet based CG height estimator – in preparation
Slide 20
Summary
• PBS approval for this Blueprint is in place;
• Working version (beta) of Support Tool available;
• Generalised approach to Blueprint design in place;
• Scope to produce many approved designs quickly;
• Modularity and interchangeability can be tested;
• Migration of popular designs into law a possibility.
Slide 21
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