Ingenieurbau
Filtern
Erscheinungsjahr
- 2017 (13) (entfernen)
Dokumenttyp
- Beitrag zu einem Tagungsband (7)
- Posterpräsentation (4)
- Vortrag (2)
Sprache
- Englisch (13) (entfernen)
Schlagworte
- Tanker (4)
- Braking (2)
- Capsizing (2)
- Emergency (2)
- Fire (2)
- Rhine river (2)
- Avoid (1)
- Compoite Receptacle (1)
- Composites in fire (1)
- Fire retardants (1)
Eingeladener Vortrag
- nein (2)
Rear-end crashes involving heavy trucks as the leading vehicle, and cars as the impact vehicle, cause many deaths and permanent injuries to car´s occupants. Measures have been thus taken in the trucks to prevent underride crashes, including the mounting of stiffer underride guards, set at car´s bumper height. In this respect, an active acceleration system(AAS), installed in the truck, could also contribute to mitigate the effects of These crashes, through the decrease of the relative Speed of the vehicles at the instant of the crash. In this paper, an AAS system is proposed, under the principles of ultrasonic sensors and an actuator for the truck´s accelerator mechanism. Simulation results of the operation of this AAS system, suggest that such a system could decrease the relative impact speed around 8% for an initial relative speed of 10 m/s.
The interaction of the vehicles with the pavements imply damaging effects on both systems, as a function of the operating conditions and design characteristics of both systems. These effects influence the road pricing as well as the maintenance costs of the vehicles. In this paper, a simulation scheme has been proposed to analyze such interaction in massive way, involving a multivehicle models was the uncoupling of the roll and pitch responses. Results suggest that the damaging effects on the pavement and the vehicle, depends on the position along the road profile. However, the vertical design of the road would mainly affect the pavement damage, while the turning maneuvers would strongly influence the damage of the vehicle. Many uses can be identified for the proposed simulation scheme, involving different design and operating conditions for both systems.