We, the authors, wish to make the following corrections to our paper [1]
In Section 2.2 of the research paper Appl. Sci. 2019, 9, 1936; https://doi.org/10.3390/app9091936, the authors recall the fundamental aspects of structural dynamics for pedestrian systems, with special attention given to the analysis of Human Structure Interaction (HSI) effects.
In doing so, however, a misspelled equation of motion was described in Equation (1), with the expression:
where M, C, and K represent the modal mass, damping, and stiffness matrices, respectively, P(t) is the imposed external (periodic) force reproducing the motion of occupants, and x(t) is the vertical displacement vector.
The correct, well-known equation of motion—that replaces the original Equation (1)—is the following:
The authors apologize for the mistake.
References
- Bedon, C.; Fasan, M. Reliability of Field Experiments, Analytical Methods and Pedestrian’s Perception Scales for the Vibration Serviceability Assessment of an In-Service Glass Walkway. Appl. Sci. 2019, 9, 1936. [Google Scholar] [CrossRef]
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