Fatigue Damage Assessment to a Rigid Planar Jumper on Model Scale

The Application of the Coupled Acoustic-Structural Approach (Casa) Method on the Free Vibration of Submerged Structures

“…The fatigue assessment resulting from vortex-induced vibration (VIV) necessitates the incorporation of the free vibration characteristics of subsea jumpers. Liu et al (2019) highlight the significance of these characteristics. Conventionally, commercial software such as ANSYS/ABAQUS or similar tools employs beam elements to simulate subsea jumpers, including bends.…”

“…Numerous engineering disciplines, such as naval architecture, noise control, vibration isolation, offshore structures, dam-reservoir structures, and nuclear plants, demonstrate a keen interest in accurately determining the natural frequencies of fluid-structure interaction fluidstructure interaction (FSI) phenomena (Bak and Yoo, 2019;Chae and Kim, 2010;Cheng et al, 2015;Liu et al, 2019;Fourey et al, 2017;Hellgren, 2014;Fujita, 1990). In the case of submerged structures, the presence of surrounding water introduces additional complexities.…”

Development and Performance Analysis of Pneumatic Soft‐Bodied Bionic Flipper

“…Liu et al [ 39 ] from Ocean University of China through the influence of key wave parameters on the propulsion performance and flow field evolution of flexible and rigid flapping wings determined that the flexible hydrofoil not only improves the vortex strength and reduces the dissipation of vortex energy in the flow field, but also provides better propulsion performance and higher‐wave energy recovery capacity. Luo et al [ 40 ] from the University of Strathclyde studied the influence of different flexibilities on the propulsion performance of the hydrofoil and determined that the propulsion efficiency of medium‐flexible hydrofoil is higher than that of the rigid hydrofoil. Not only is the thrust of the flexible hydrofoil the same as that of rigid hydrofoil, the propulsion efficiency of flexible hydrofoil is higher than that of the rigid hydrofoil.…”