CN-121994439-A - Ship collision test system and test method

CN121994439ACN 121994439 ACN121994439 ACN 121994439ACN-121994439-A

Abstract

The invention relates to the field of ships, in particular to a ship collision test system and a ship collision test method. The ship collision test system comprises a front fixing frame and a rear fixing frame which are respectively arranged on two sides of a water tank, a winch is arranged on the fixing frames on the front and rear sides of the water tank, a guide rail is arranged between the front fixing frame and the rear fixing frame on the same side, a moving frame stretches across the two sides of the water tank, two ends of the moving frame are respectively movably connected to the guide rail and are pulled by steel wires to move, a test ship model is movably connected with the middle of the moving frame and moves in the water tank, a speed measuring instrument is arranged in the test ship model, a test board is arranged in the water tank, a sensor for dynamic data acquisition is arranged at the back of the test board and used for acquiring relevant corresponding data of the test board after the test ship model collides with the test board, and a control unit is used for receiving signals of the speed measuring instrument and controlling the traction direction and the traction speed of the winch. And (5) completing a collision test by using the system. The method is accurate, quick, convenient to control and low in cost.

Inventors

GU YINGBIN
LIN YI
KONG XIANGSHAO
PEI ZHIYONG
CHEN LIZHI
CHENG RUIQI
TIAN MINGQI
YAN LEI
SUN JIAN

Assignees

中核海洋核动力发展有限公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (10)

1. The ship collision test system is characterized by comprising an onshore fixing frame, a steel wire rope, a winch, a movable frame, a guide rail, a test ship model, a sensor, a speed measuring instrument and a control unit; front and back two shore fixing frames are respectively arranged on two sides of the pool, a winch is arranged on the shore fixing frames, A guide rail is arranged between the front and rear shore fixing frames on the same side, The movable frame stretches across two sides of the pool, two ends of the movable frame are respectively movably connected to the guide rail, and the movable frame is pulled by the steel wire rope to move on the guide rail; the test ship model is movably connected with the middle part of the movable frame and moves in the water tank, and a speed measuring instrument is arranged in the test ship model; The test board is arranged in the pool, and a sensor for dynamic data acquisition is arranged at the back of the test board and used for acquiring relevant corresponding data of the test board after the test ship model collides with the test board; And the control unit is used for receiving the signal of the speed measuring instrument and controlling the traction direction and the traction speed of the winch.
2. The ship collision test system according to claim 1, wherein the movable frame is provided with a cable guide hole at both ends thereof, and a wire rope is passed through the cable guide hole to connect the hoist with the movable frame.
3. The marine vessel crash test system as recited in claim 1, wherein the test plate is secured by a clamping mechanism.
4. A ship crash test system as claimed in claim 3 wherein said clamping mechanism is comprised of a vertical stand.
5. The ship collision test system of claim 1, wherein the test ship model is connected with the mobile frame by a towing hook.
6. The ship collision test system according to claim 1, wherein a photoelectric switch is arranged near the front-end shore-mounted frame, a control circuit of the photoelectric switch is connected in a circuit loop of the winch, once the movable frame reaches the position of the photoelectric switch under the traction of the winch, the forward traction circuit loop is immediately powered off, and the reverse traction circuit starts to work, and the movable frame decelerates until stopping.
7. The marine crash test system as recited in claim 1 wherein the front end hoist is for forward pulling the wire rope and the rear end hoist is for reverse pulling the wire rope.
8. The ship collision test system of claim 1, wherein a buffer pad is installed inside the shore mount.
9. The ship collision test system according to claim 1, wherein the movable frame is provided with rollers at the bottom, the rollers being in contact with the guide rail and moving along the guide rail.
10. A ship collision test method, characterized in that the ship collision test system according to any one of claims 1 to 9 is used for the test, comprising the following steps: After the speed of the ship model reaches a preset value, stopping the forward traction, and simultaneously slowing down the movable frame until stopping the reverse traction, wherein the test ship model is separated from the movable frame under the action of inertia; The test ship model continues to move forwards at a certain speed value and completes the collision process with the test board, the speed measuring instrument obtains the ship model speed value at the moment of starting collision, and meanwhile, the data acquisition sensor at the back of the test board records test data in the whole collision process.

Description

Ship collision test system and test method Technical Field The invention relates to the field of ships, in particular to a ship collision test system and a ship collision test method. Background Marine collisions are a possible catastrophic event and are generally classified into two categories of research problems, marine collisions and ship-to-fixture collisions. Since the collision process of the ship and the structure involves a very complex nonlinear plastic deformation process, the theoretical calculation analysis error is relatively large, and the related research by adopting a collision test is an indispensable part. The test method for carrying out the ship collision mainly comprises a real-scale test, a large-scale model test and a small-scale model test. The former two have the advantages of high resource consumption, long period, high risk and high requirement on test conditions. However, the current small-scale test lacks a reliable control method and a test system, so that the research on a reliable ship collision test system in a test pool is necessary. Disclosure of Invention The invention aims to solve the technical problem of providing a ship collision test system and a ship collision test method, wherein the ship collision test system and the ship collision test method are accurate, quick, convenient to control and low in cost. The invention provides a ship collision test system, which comprises an onshore fixing frame, a steel wire rope, a winch, a movable frame, a guide rail, a test ship model, a sensor, a speed measuring instrument and a control unit, wherein the onshore fixing frame is connected with the steel wire rope; front and back two shore fixing frames are respectively arranged on two sides of the pool, a winch is arranged on the shore fixing frames, A guide rail is arranged between the front and rear shore fixing frames on the same side, The movable frame stretches across two sides of the pool, two ends of the movable frame are respectively movably connected to the guide rail, and the movable frame is pulled by the steel wire rope to move on the guide rail; the test ship model is movably connected with the middle part of the movable frame and moves in the water tank, and a speed measuring instrument is arranged in the test ship model; The test board is arranged in the pool, and a sensor for dynamic data acquisition is arranged at the back of the test board and used for acquiring relevant corresponding data of the test board after the test ship model collides with the test board; And the control unit is used for receiving the signal of the speed measuring instrument and controlling the traction direction and the traction speed of the winch. In one specific embodiment of the invention, the two ends of the movable frame are provided with the cable guide holes, and the steel wire rope penetrates through the cable guide holes to connect the winch with the movable frame. In one embodiment of the invention, the assay plate is secured by a clamping mechanism. In one embodiment of the invention, the clamping mechanism is comprised of a vertical stand. In one embodiment of the invention, the test ship model is connected with the movable frame through a traction hook. In a specific embodiment of the invention, a photoelectric switch is arranged near the front-end shore fixing frame, a control circuit of the photoelectric switch is connected in a circuit loop of the winch, once the movable frame reaches the position of the photoelectric switch under the traction of the winch, the forward traction circuit loop is immediately powered off, and meanwhile, the reverse traction circuit starts to work, and the movable frame decelerates until stopping. In one embodiment of the invention, the front end hoist is used to pull the wire rope in the forward direction and the rear end hoist is used to pull the wire rope in the reverse direction. In a specific embodiment of the invention, a buffer pad is arranged on the inner side of the shore fixing frame. In a specific embodiment of the invention, rollers are arranged at the bottom of the movable frame, and the rollers are contacted with the guide rail and move along the guide rail. The invention also provides a ship collision test method, which is carried out by using the ship collision test system according to the technical scheme and comprises the following steps: After the speed of the ship model reaches a preset value, stopping the forward traction, and simultaneously slowing down the movable frame until stopping the reverse traction, wherein the test ship model is separated from the movable frame under the action of inertia; The test ship model continues to move forwards at a certain speed value and completes the collision process with the test board, the speed measuring instrument obtains the ship model speed value at the moment of starting collision, and meanwhile, the data acquisition sensor at the back of the test board records test data in t