Random Model of Vertical Walking Force Signals
This paper presents a mathematical model to generate synthetic narrow band vertical force signals due to individuals walking. The model is fitted to a unique database comprising many directly measured vertical walking force time histories due to diverse population of human test subjects walking on an instrumented treadmill at a range of speeds, yielding a random approach to generating their artificial - yet realistic counterparts. Integrated in computer software, the modelling strategy presented offers a radical departure from traditional hand-based calculations of human-induced vibrations towards more realistic and more reliable assessment of dynamic performance of pedestrian structures that could be adopted in modern design practice.
The authors would like to acknowledge the financial support provided by the UK Engineering and Physical Sciences Research Council (EPSRC) for grant reference EP/E018734/1 (‘Human Walking and Running Forces: Novel Experimental Characterisation and Application in Civil Engineering Dynamics’).
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