EVU XXVI 2017 – 26 Study of energy absorbed by bicycles in frontal collisions at speeds of 20 to 35 km/h
Study of energy absorbed by bicycles in frontal collisions at
speeds of 20 to 35 km/h
Ing. Michael Schrammel, MEng.
Master thesis “Traffic Accident Research” study course, Graz University, Institute of Technology
*Corresponding author; e-mail: michael.schrammel@gerichts-sv.at
Abstract
This study primarily investigated deformation energies of bicycles in frontal collisions against a rigid
barrier (beam). The impact forces measured for bicycle frontal collisions at a speed range from 20 to 35
km/h were analysed and energy split was determined. The task included the execution of bike crash tests
using diverse types of bicycle. Following these, we investigated deformation behaviour and identified
deformation energy progression. The tests were conducted to establish if collision speed may be inferred
from the deformation left on a bike. It turned out that varying degrees of deformation on the forks
occurred due to unequal dummy loads during deformation, as well as due to different fork types. We
also found that deformation of the bicycle rims (metal rims) only occurred in frontal collisions at speeds
of more than 30 km/h.
La lettura di questo articolo è riservata ai soli Soci EVU Italia
| Autore | Ing. Michael Schrammel, MEng. Master thesis "Traffic Accident Research" study course, Graz University, Institute of Technology |
| Pubblicato il | |
| Tipologia |