Investigation on the effects of Bragg reflection on harbor oscillations

Two-dimensional numerical study of gap resonance coupling with motions of floating body moored close to a bottom-mounted wall

Numerical investigations of gap resonance excited by focused transient wave groups

Wave estimation within a port using a fully nonlinear Boussinesq wave model and artificial neural networks

Effects of free heave motion on wave resonance inside a narrow gap between two boxes under wave actions

Numerical investigation of harbor oscillations induced by focused transient wave groups

The invention relates to the technical field of navigation marks, in particular to a novel port navigation mark. According to the specific technical scheme, the novel port navigation mark comprises ahollow navigation mark body, a mark rod fixed to the top of the mark body through a plurality of supporting rods, and a mark lamp arranged at the top of the mark rod. A hemispheroid is arranged at thebottom of the mark body, a circular groove is formed at the bottom of the hemispheroid, and an arc-shaped plate attached to the bottom of the hemispheroid is arranged below the hemispheroid. A fixedcolumn is fixed at the bottom of the arc-shaped plate, a cylindrical groove penetrating through the arc-shaped plate is vertically formed at the top of the fixed column, and the hemispheroid is fixedto the bottom of the cylindrical groove through a chain. A first through hole communicated with the cylindrical groove is transversely formed on the side wall of the fixing column, a plug pin is arranged in the first through hole, penetrates through the chain and is fixed to the inner wall, symmetrical to the first through hole, of the cylindrical groove, and a sinking stone is fixed to the bottomof the fixing column. According to the novel port navigation mark, the problem that in the prior art, the navigation mark cannot be normally used under the condition of strong wind and strong waves is solved.

Novel port navigation mark

The invention belongs to the field of ocean engineering, and particularly relates to a floating structure connecting device. According to the specific technical scheme, the floating structure connecting device comprises a connector base body, two ends of the base body are connected with first connecting pieces respectively, the first connecting pieces can rotate universally relative to the base body respectively, suspension ends of the first connecting pieces are connecting ends, and the connecting ends can be connected with floating structure modules respectively; and a lead-in hole is formedin one side, opposite to the first connecting piece, of the floating structure module; the diameter of the leading-in hole is larger than the maximum width of the first connecting piece, a buckle structure for containing the connecting end is arranged in the leading-in hole, after the connecting end enters the buckle structure through the leading-in hole, the buckle structure can clamp the connecting end, and after the connecting end is clamped by the buckle structure, the first connecting piece can universally rotate relative to the floating structure module. The floating structure connecting device is convenient to disassemble and assemble and flexible in connection, and wave force transmission between floating structures can be effectively reduced.

Zhu Yazhou

Papers

Numerical investigation of harbor oscillations induced by focused transient wave groups

Numerical investigations of gap resonance excited by focused transient wave groups

Novel port navigation mark

Floating structure connecting device