Evaluation of an alternative seating technology for truck seats
by M. Seigler, M. Ahmadian
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 10, No. 3, 2003

Abstract: A comprehensive comparison is provided between an air-inflated seat cushion designed for truck seats and a commonly used foam cushion. Using a single-axis test rig, each cushion type is evaluated under both transient and steady-state conditions over a twelve-hour period – in four-hour intervals – measuring the effects of long-term sitting. The tests indicated a greater stiffening of the foam over time and higher-pressure concentrations at the bony prominences, as compared with the air-inflated cushion. Other objective methods used for evaluating the dynamic properties of the two seat cushions included those recommended by past studies, as well as new techniques that were developed based on previous research in the field of ride comfort. The new techniques, named Seat Pressure Distribution (SPD%) and Area Pressure Change (aPcrms) for the purpose of this study, are formulated to highlight the relative dynamics between different types of seat cushion, and their effect on driver comfort. The results show that the air-inflated seat cushion can provide significant improvements in pressure distribution between the seat cushion and the driver, therefore providing a more comfortable ride.

Online publication date: Thu, 24-Jul-2003

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Heavy Vehicle Systems (IJHVS):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com