A simple methodology to estimate static rollover threshold of trucks and tractor-semitrailers, equipped with a partially filled clean-bore cylindrical tank, is presented. Lateral liquid load transfer is determined as a function of fill level, tank geometry, roll angle of the sprung mass and lateral acceleration. The static rollover threshold is then estimated by balancing the total overturning moment against the restoring moment. Results are compared to those obtained from software based on comprehensive kineto-static analysis of tank vehicles.
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