Effects of Interia Forces on Wave-Induced Seabed Response

TLDR: In this paper, a new closed-form analytical solution to the equations governing the wave-induced seabed response, including inertia items, was presented, and the numerical results showed that the inertia forces cannot always be ignored in a softer seafloor and that the relative difference between the present solution and the previous solution may reach 5% of po under certain combinations of wave and soil conditions.

Abstract: The analysis of wave-induced seabed response is an important factor in the design of offshore installations. However, to simplify the complicated problem, most previous investigations have ignored the effects of inertia forces. This paper presents a newly closed-form analytical solution to the equations governing the wave-induced seabed response, including inertia items. The numerical results show that the inertia forces cannot always be ignored in a softer seabed. The relative difference between the present solution (with inertia items) and the previous solution (without inertia items) may reach 5% of po under certain combinations of wave and soil conditions. *ISOPE Member. Received February 9, 1999; revised manuscript received by the editors September 9, 1999. The original was submitted directly to the Journal.