TY  - JOUR
PY  - 2002//
TI  - Restrained cargo dynamics in road transportation: Indirect tiedowns
JO  - Heavy vehicle systems
A1  - Romero, J. A.
A1  - Rakheja, Subhash
A1  - Ahmed, AKW
A1  - Lozano, A
SP  - 93
EP  - 114
VL  - 9
IS  - 2
N2  - 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 nonlinear 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 utilized 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.<p />
LA  - 
SN  - 1351-7848
UR  - http://dx.doi.org/
ID  - ref1
ER  -