TY - JOUR PY - 2016// TI - Reactions of standing bipeds on moving platforms to keep their balance may increase the amplitude of oscillations of platforms satisfying Hooke's law JO - PLoS one A1 - Goldsztein, Guillermo H. SP - e0157675 EP - e0157675 VL - 11 IS - 6 N2 - Consider a person standing on a platform that oscillates laterally, i.e. to the right and left of the person. Assume the platform satisfies Hooke's law. As the platform moves, the person reacts and moves its body attempting to keep its balance. We develop a simple model to study this phenomenon and show that the person, while attempting to keep its balance, may do positive work on the platform and increase the amplitude of its oscillations. The studies in this article are motivated by the oscillations in pedestrian bridges that are sometimes observed when large crowds cross them.

Language: en

LA - en SN - 1932-6203 UR - http://dx.doi.org/10.1371/journal.pone.0157675 ID - ref1 ER -