School of Naval Architecture and Ocean Engineering University of Science and Technology 212100;
Key Laboratory of Port and Sedimentation Engineering of MOT Hydraulic Research Institute 210029;
Key Laboratory of Water Security Guarantee in Guangdong-Hong Kong-Marco Greater Bay Area of Ministry of Water Resources 510611;
Centre for Infrastructure and Water Engineering(IGWE) of Architecture and Civil Engineering of Bath;
harbor oscillations; seiches; falling objects; resonant mode; response amplitude;