Forum für Wissenschaft, Industrie und Wirtschaft

Hauptsponsoren:     3M 
Datenbankrecherche:

 

Virtual vehicle vibrations

12.02.2013
UI researcher designs program to predict role posture may play in reducing head, neck injuries

“Sit up straight in your chair!”


Computer models show postures of a tractor's operator in a field experimental study funded by the Injury Prevention Research Center. Images generated by John Meusch.

That command given by countless parents to their children may one day be delivered by vehicle designers to a robot that is actually a computerized model of a long-distance truck driver or other heavy equipment operator, thanks to a University of Iowa research program.

That’s because a UI researcher has designed a computer program that allows engineers to accurately predict the role posture plays in transferring the stress of vehicle motion to bone and muscle in the head and neck.

Titled "Human head-neck models in whole-body vibration: Effect of posture,” the paper is published in the online Jan. 3 issue of the Journal of Biomechanics.

Lead author Salam Rahmatalla, associate professor of civil and environmental engineering and research engineer at the Virtual Soldier Research (VSR) Program, a part of the College of Engineering's Center for Computer-Aided Design (CCAD), says that a computer model is needed.

“Studies have shown that awkward head-neck postures inside whole-body vibration environments can increase discomfort and the risk of injury,” he says. “The goal of this project is to introduce a computerized human model that can be used to predict human motion in response to whole-body vibration when the human takes different head-neck postures.”
He notes that the predicted motion data of his current model can be used to drive more sophisticated computer human models—with muscles and internal tissues—that can predict muscle forces and internal strain and stress between tissues and vertebrae.

Significantly, the computer program may reduce the need for actual human subjects to drive test vehicles.

“One major benefit of the current computer human model is the possibility of using it instead of humans in the design/modification loop of equipment in whole-body vibration,” he says.

Rahmatalla says a wide variety of industry, university, and other researcher venues likely will learn from his work.

“The automotive industry, and manufacturers of heavy machinery including construction, agriculture, mining, and military vehicles can benefit from the application of this model to the design of their equipment,” he says. “Also, human factors researchers and ergonomists can use this model to investigate the effect of head-neck posture on human response, performance, human machine interaction, and injury risk in whole-body vibration.”

Rahmatalla’s long-term VSR objective is to develop a virtual human capable of reproducing complex human responses to a whole body vibration environment that will help answer questions related to potential injury risks and design modifications.

Rahmatalla conducted the study by having 11 male participants sit in a vehicle simulator where they were subjected to white-noise random vibration and the acceleration data of the head and neck for each was recorded. The recorded motion data was used to calibrate the computer human model.

His colleague in the study was Yang Wang, a student in the UI Graduate College and CCAD graduate research assistant.
Contacts
Gary Galluzzo, University Communication and Marketing, 319-384-0009

Gary Galluzzo | EurekAlert!
Further information:
http://www.uiowa.edu

More articles from Health and Medicine:

nachricht Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht On track to heal leukaemia
18.01.2017 | Universitätsspital Bern

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Verkehrsstau im Nichts

Konstanzer Physiker verbuchen neue Erfolge bei der Vermessung des Quanten-Vakuums

An der Universität Konstanz ist ein weiterer bedeutender Schritt hin zu einem völlig neuen experimentellen Zugang zur Quantenphysik gelungen. Das Team um Prof....

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: Textiler Hochwasserschutz erhöht Sicherheit

Wissenschaftler der TU Chemnitz präsentieren im Februar und März 2017 ein neues temporäres System zum Schutz gegen Hochwasser auf Baumessen in Chemnitz und Dresden

Auch die jüngsten Hochwasserereignisse zeigen, dass vielerorts das natürliche Rückhaltepotential von Uferbereichen schnell erschöpft ist und angrenzende...

Im Focus: Wie Darmbakterien krank machen

HZI-Forscher entschlüsseln Infektionsmechanismen von Yersinien und Immunantworten des Wirts

Yersinien verursachen schwere Darminfektionen. Um ihre Infektionsmechanismen besser zu verstehen, werden Studien mit dem Modellorganismus Yersinia...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Alle Focus-News des Innovations-reports >>>

Anzeige

Anzeige

IHR
JOB & KARRIERE
SERVICE
im innovations-report
in Kooperation mit academics
Veranstaltungen

Nachhaltige Wassernutzung in der Landwirtschaft Osteuropas und Zentralasiens

19.01.2017 | Veranstaltungen

Künftige Rohstoffexperten aus aller Welt in Freiberg zur Winterschule

18.01.2017 | Veranstaltungen

Bundesweiter Astronomietag am 25. März 2017

17.01.2017 | Veranstaltungen

 
VideoLinks
B2B-VideoLinks
Weitere VideoLinks >>>
Aktuelle Beiträge

Flashmob der Moleküle

19.01.2017 | Physik Astronomie

Tollwutviren zeigen Verschaltungen im gläsernen Gehirn

19.01.2017 | Medizin Gesundheit

Fraunhofer-Institute entwickeln zerstörungsfreie Qualitätsprüfung für Hybridgussbauteile

19.01.2017 | Verfahrenstechnologie