Restrained cargo dynamics in road transportation: indirect tiedowns
by J.A. Romero, S. Rakheja, A.K.W. Ahmed, A. Lozano
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 9, No. 2, 2002

Abstract: A simple model is proposed to study the load-securement properties of indirect tiedowns under a longitudinal deceleration. The elasticity of the tiedown is expressed by an equivalent stiffness as a function of the material properties, tiedown angle, initial tension and cargo geometry. The equivalent stiffness is observed to be a strongly non-linear function of cargo displacement and tiedown angle. The model further incorporates the effects of load-deck interface friction and vertical trailer vibration. The dynamic response characteristics of the restrained cargo are evaluated in terms of peak cargo motion and peak tiedown force under a longitudinal deceleration. The model is utilised to study the effects of tiedown materials, tiedown angle, cargo-deck friction and nature of vertical vibration (frequency, amplitude and phase). The results of the analysis revealed the strong influence of cargo-deck friction, vibration amplitude, tiedown material and tiedown angle on the potential cargo movement. The initial tension is also found to influence the effectiveness of the restraints.

Online publication date: Tue, 01-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