Search

CN-122009377-A - High-speed tetrad ship

CN122009377ACN 122009377 ACN122009377 ACN 122009377ACN-122009377-A

Abstract

The invention discloses a high-speed four-body ship structure, and belongs to the technical field of ship engineering. The high-speed quadricycle comprises two bow-stern catamarans which are identical in scale and symmetrically arranged, each bow-stern catamaran comprises a bow sheet body and a stern sheet body, the bow sheet bodies and the stern sheet bodies are longitudinally arranged at intervals, a continuous main deck is arranged above the two bow-stern catamarans, the main deck covers a central area formed by encircling the four sheet bodies, and the sheet bodies are connected with the main deck through independent shock absorption structures. According to the invention, through the differential design of the front sheet body and the rear sheet body and the optimized sheet body layout, the total width of the ship body is obviously increased on the premise of keeping the equivalent drainage amount to that of the catamaran, the transverse stability and the deck area are improved, meanwhile, the hydrodynamic performance is optimized, the high-speed high-sea condition maintenance capability is strong, the shock absorption system greatly reduces the wave impact load, the movement of the ship body is restrained, the good compatibility of high navigational speed and high stability is realized, and the high-speed high-sea condition maintenance device is convenient and rapid to construct on a large scale.

Inventors

  • YANG JINGLEI
  • LIU XIN
  • WU DEFENG
  • LI XIAOWEN
  • LI HUIHUI

Assignees

  • 集美大学

Dates

Publication Date
20260512
Application Date
20260320

Claims (10)

  1. 1. A high-speed four-body ship is characterized in that a high-speed planing boat is adopted as a sheet base boat, and comprises two bow-stern catamarans which have the same scale and are symmetrically arranged; each bow-stern catamaran comprises a bow sheet body and a stern sheet body, wherein the bow sheet bodies and the stern sheet bodies are longitudinally arranged at intervals, and the center lines of the bow and the stern are aligned; the continuous main deck is arranged above the two bow-stern catamarans, the main deck covers a central area formed by encircling four sheet bodies, and each sheet body is connected with the main deck through an independent shock absorption structure.
  2. 2. The high-speed quadricycle of claim 1, wherein a deflector extending towards the stern blade is arranged below the tail waterline of the bow blade, and the deflector is a natural extension of the hull at the lower part of the bow blade, has a V-shaped structure and is used for inhibiting vortex between the bow blade and the stern blade.
  3. 3. High-speed four-hull vessel according to claim 1 or 2, wherein each hull has a length of less than 15m and a width of less than 4.5m.
  4. 4. The high-speed four-hull vessel according to claim 1 or 2, wherein the distance between the centre lines of two bow-stern catamarans is 1.3-1.5 times the bow-sheet-type width or the stern-sheet-type width; The ratio of the total length of the bow sheet body to the total length of the stern sheet body is 0.9-1.0, the ratio of the profile width of the bow sheet body to the profile width of the stern sheet body is 0.9-1.0, and the in-ship bottom lift angle of the bow sheet body is larger than that of the stern sheet body.
  5. 5. The high speed quadricycle of claim 1 or 2, wherein the longitudinal spacing of the bow and stern blades is less than 0.1m or less than 1% of the waterline length of the bow blade.
  6. 6. High speed quadricycle as claimed in claim 1 or 2 wherein the inboard transverse distance of the blade at the waterline is less than one half the transverse spacing between the blade centre lines.
  7. 7. The high-speed four-hull vessel according to claim 1 or 2, wherein the waterline length of the fore hull is less than the waterline length of the aft hull.
  8. 8. The high-speed four-hull vessel according to claim 1 or 2, wherein the design draft of the high-speed four-hull vessel is less than the profile depth of the bow or stern blade.
  9. 9. The high-speed four-hull vessel according to claim 1 or 2, wherein the ratio of the waterline length of the fore-blade to the total length of the fore-blade and the ratio of the waterline length of the aft-blade to the total length of the aft-blade are both greater than 0.95.
  10. 10. The high speed four-hull vessel according to claim 1 or 2, wherein the difference between the mid-ship lift angle of the bow blade and the mid-ship lift angle of the stern blade is greater than 15 °.

Description

High-speed tetrad ship Technical Field The invention relates to the technical field of ship engineering, in particular to a high-speed four-body ship structure which is particularly suitable for high-speed ship design. Background The high-speed catamaran has the advantages of large deck area, good stability, excellent resistance performance and the like, and is widely applied to the fields of high-speed passenger transport, marine law enforcement, tour sightseeing and the like. The traditional high-speed catamaran consists of two symmetrically arranged sheet bodies which are connected into a whole through a connecting bridge. The large-scale and functional diversification of ships are developed, and higher requirements are put on the transverse stability and deck area of the ships. The overall width can be increased by simply increasing the sheet spacing of the conventional catamaran, but the technical problems that the span of a connecting bridge is increased, the structural weight is obviously increased, the stress concentration problem is prominent, the sheet spacing is too large to cause the aggravation of wave impact at the bottom of the connecting bridge, the structural safety is affected, and the proportion of the transverse dimension increase and the longitudinal dimension is unbalanced, so that the maneuvering performance is affected are caused. The four-hull ship is a multi-hull ship, adopts four lamellar bodies to be arranged in parallel, and can obtain larger total width and deck area under the same drainage condition. However, the existing four-body ship design generally adopts four sheets with the same or similar dimensions to be arranged in parallel along the transverse direction, and mainly has the technical defects that firstly, all the sheets are designed in the same or similar linear mode, the hydrodynamic functions of the sheets are not distributed differently, the length and width proportion of the four-body ship is unbalanced, high-speed performance and wave resistance performance are difficult to achieve simultaneously, secondly, layout parameters such as transverse spacing and longitudinal dislocation of the sheets are not optimized systematically, hydrodynamic interference among the sheets cannot be effectively controlled, thirdly, the whole design of a connecting bridge structure and deck layout is lacked, the space among the four sheets cannot be fully utilized, and the advantages of large deck area cannot be fully exerted. The existing multi-hull ship is mainly built integrally, fixed connection structures are adopted among the sheet bodies, modularization splitting and independent building are difficult to achieve, the building period is long, the construction difficulty is high, meanwhile, the size of the integral structure exceeds the land transportation limit, transportation cannot be achieved through roads or railways, and the building site selection and batch production capacity are limited. Therefore, how to provide a multi-hull ship with optimized structure and excellent performance, through the differential design of the sheet bodies and the systematic optimization of the layout, the total width of the ship body is obviously increased, the transverse stability and the deck area are improved, and meanwhile, the hydrodynamic performance is optimized, so that the technical problem to be solved in the field is urgent. Disclosure of Invention Object of the Invention The invention aims to provide a high-speed four-body ship with optimized structure and excellent performance, which can obviously increase the total width of the ship body, improve the transverse stability and the deck area, optimize the hydrodynamic performance and meet the requirements of modularized splitting and land transportation on the premise of keeping the equivalent drainage amount to that of a catamaran by the optimized front-rear sheet layout and the differentiated design of the front-rear sheet. Technical proposal In order to achieve the above purpose, the present invention provides the following technical solutions: a high-speed four-body ship adopts a high-speed planing boat shape as a lamellar body foundation boat shape, and comprises two bow-stern catamarans which have the same dimension and are arranged in parallel; each bow-stern catamaran comprises a bow sheet body and a stern sheet body, wherein the bow sheet bodies and the stern sheet bodies are longitudinally arranged at intervals, and the center lines of the bow and the stern are aligned; A continuous main deck is arranged above the two bow-stern catamarans, and covers a central area formed by encircling four sheets and is connected with each sheet through a damping structure. Further, a guide plate extending towards the stern sheet body is arranged below the tail waterline of the bow sheet body, the guide plate is a natural extension of a hull at the lower part of the bow sheet body and is of a V-shaped structure and used for inhibiting vo