TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank A1 - Lozano Guzmán, A. A. T1 - Simulation of liquid cargo – vehicle interaction under lateral and longitudinal accelerations N2 - Amongst the vehicle parameters influencing road safety, the carried cargo plays a critical role in the case of a liquid cargo, posing rollover risk and affecting the available friction forces for braking. While the lateral sloshing of the cargo within the vehicle´s compartments, can be excited when the vehicle negotiates a turn, the longitudinal motion of the cargo derives from changes of speed. The combination of both types of perturbations occurs when the vehicle brakes while negotiating a turn. In this paper, a two-pendulum formulation is used to simulate the lateral and longitudinal behavior of a vehicle when negotiating a braking in a turn maneuver. The suspension forces are thus calculated as the linear superposition of both models. Results suggest that the vehicle roll stability is affected by the cargo sloshing, with increments on the order of 100% in the lateral load transfer, for a 50% filled tank. On the other hand, the dispersion of the travelling speed also affects the lateral stability of such type of vehicles, as a function of the dispersion of the vehicle´s travelling speed. T2 - The 9th International Conference on Computational Methods (ICCM2018) CY - Rome, Italy DA - 06.08.2018 KW - Sloshing cargo KW - Road tankers KW - Pendulum analogy KW - Braking in a turn KW - Lateral load transfer ratio PY - 2018 SP - 88 EP - 102 PB - Scientech Publisher LLC AN - OPUS4-45821 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Romero Navarrete, J. A. A1 - Otremba, Frank A1 - Lozano Guzmán, A. A. T1 - Experimental-theoretical modelling of the lateral sloshing in rail tankers N2 - The objective of this paper is to describe and to validate a simplified pendulum-analogy model to simulate the interaction of a liquid cargo with ist carrying vehicle. The resulting testing rig consists of a rectangular container, spring supported on a two wheelset-bogie having a scale down of 1/10 with respect to a full-size equipment. The testing rig is used to validate a simple pendulum-based, simplified three degree-of-freedom mathematical model of the response of a partially filled container to lateral accelerations. The length of the pendulum is set according to validated methodologies. The resulting mathematical scheme reveals a high correlation with the experimental output, on the order of 99%, while some other performance measures, related to the peak forces and the range of variation of the wheel-rail forces, also show good concordance with the experimental results. KW - Sloshing KW - Rail tankers KW - Pendulum analogy KW - Experimental modelling KW - Mechanical fatigue PY - 2021 DO - https://doi.org/10.1504/ijhvs.2021.117504 VL - 28 IS - 3 SP - 435 EP - 454 AN - OPUS4-53101 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -