Tag: hall

Research at GBB finished 2012 in full force with a range of exciting new projects geared towards increased understanding of vehicle collisions and their effects.

Published Work

The year 2012 was culminated by the publication of the GBB peer reviewed research “A study and comparison of the effects of low speed change vehicle collisions on the human body”.

Co-authored by Philip Hoyes and Brian Henderson the paper compares the accelerations produced by low speed collisions with those produced in everyday activity, such as sitting into a chair.

The research is available in the March 2013 edition of Accident Analysis and Prevention published by Elsevier and available through SciVerse Science Direct.

Bumper Cars

GBB carried out collision testing using bumper cars in Spring 2012.  Philip Hoyes, project organiser, explains:  [blockquote align=”center” cite=”Phil Hoyes”]Occupant kinematics research using bumper cars isn’t new; published research already exists through the Society of Automotive Engineers. However, no such study appears to have been done in the UK. Using bumper cars allows us to expand our collision test dataset but it also provides a comparison with something that is more familiar or comprehendible for people when discussing the effects of low speed car collisions[/blockquote]

Mike Hall, previous university lecturer in vehicle dynamics and recent prodigal son of the research department, is closely involved with the bumper car research. [blockquote align=”center” cite=”Mike Hall”]Though bumper cars do not behave exactly the same as normal cars, the effects remain similar – and the unrestricted view allows an unimpeded assessment of occupant movement. Using accelerometers we can measure, record, analyse and compare the relative motions of the head/neck/chest system[/blockquote]

Vehicle Pitching Under Braking

Mike is also involved with a separate project which explores the effects of changing ride heights of vehicles due to braking.

[blockquote align=”center”]When a vehicle brakes the front profile lowers and the rear profile rises. By quantifying the change of heights for a range of vehicles, we can look at how much we might expect a car’s height at to change under certain conditions,” says Mike. “We can then use this information to comment with improved confidence on the mechanism of any collision. This is particularly pertinent where a ‘slam-on’ or induced collision has been reported[/blockquote]

The GBB research on bumper car testing and vehicle dive prediction will be published later in 2013.