A ship hull simulation test device and method

Abstract

This invention discloses a ship hull simulation test device and method, belonging to the field of ship testing technology. The ship hull simulation test device includes a support frame, and further includes: a rotating ratchet, the rotating ratchet being placed on the upper side of the support frame, with a rotating shaft rotatably connected to the rotating ratchet on the support frame; a placement seat, the placement seat being disposed on the rotating ratchet for placing a ship hull model; and a rotating impact mechanism, the rotating impact mechanism including a rotating component for driving the rotating ratchet to rotate intermittently and an impact component for impacting the ship hull model. In this invention, the rotating component drives the ship hull model on the rotating ratchet to rotate, causing the impact component to impact the rotated ship hull model. The rotating component and the impact component alternately operate intermittently, allowing for rapid adjustment of the impact position and angle of the ship hull model according to test needs, simplifying the adjustment steps, increasing the diversity of tests, and thus making the test results more comprehensive.

Description

Technical Field

[0001] This invention relates to the field of ship testing technology, and in particular to a ship hull simulation test apparatus and method. Background Technology

[0002] During navigation and operations, ships inevitably face various collision risks, such as scraping against other vessels in narrow channels, contact with dock structures during berthing, or impacts from floating objects in complex sea conditions. These collisions can occur at any position and angle along the ship's side, posing a severe test to the hull's structural strength, safety performance, and crashworthiness. Therefore, during the ship design phase, conducting multi-angle and multi-position assessments of the hull model's crashworthiness through simulation tests is of significant engineering importance for improving overall ship safety and reducing accident losses.

[0003] Currently, when conducting impact tests on ship hulls, it is typically necessary to adjust the impact angle and impact position of the hull model multiple times to simulate different collision scenarios. However, the adjustment process for impact angle and position in existing technologies is often cumbersome and relies on manual intervention, which is not only inefficient but also makes it difficult to guarantee the consistency and accuracy of each adjustment. In addition, due to the limited adjustment range or incomplete adjustments, the test coverage is relatively limited and cannot truly reflect the stress state and damage mode of various parts of the ship's hull in an actual collision. This results in significant deviations in the test results, making it difficult to comprehensively support hull structure optimization and safety assessment. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a ship hull simulation test device and method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ship hull simulation test device includes a support frame and further includes:

[0007] Rotate the ratchet, which is located on the upper side of the bracket, and the bracket is rotatably connected to a rotating shaft connected to the ratchet;

[0008] Placement seat, which is mounted on a rotating ratchet, for placing the ship hull model; and

[0009] A rotating impact mechanism, comprising a rotating component for driving a rotating ratchet to rotate intermittently and an impact component for impacting a ship hull model, wherein the rotation of the rotating ratchet and the impact of the impact component work alternately.

[0010] The bracket is equipped with a positioning component for positioning the rotating ratchet.

[0011] Preferably, the placement seat includes a frame mounted on a rotating ratchet, a first bidirectional screw rotatably connected to the frame, a first sleeve threaded to both ends of the first bidirectional screw, a clamping plate fixedly connected to the first sleeve, and a knob mounted at the end of the first bidirectional screw.

[0012] Preferably, the top of the rotating ratchet is fixed with a ring frame via a connecting rod, and a plurality of first elastic telescopic rods are horizontally rotatably connected to the ring frame via pins, with the end of each first elastic telescopic rod away from the ring frame being movably connected to the frame.

[0013] Preferably, the bottom of the frame is fixedly provided with a base, and the bottom of the base is provided with a ball bearing that slides with the rotating ratchet.

[0014] Preferably, the rotating assembly includes a rotary motor fixed to the lower side of the bracket. The output shaft of the rotary motor passes through the bracket and is connected to a first rotating rod. A cam is fixed to the top of the first rotating rod. A fixed rod is fixed to the end of the cam away from the first rotating rod. A pawl that movably abuts against the ratchet teeth of the rotating ratchet is movably connected to the outside of the fixed rod. A second elastic telescopic rod is movably arranged between the pawl and the bracket.

[0015] Preferably, the impact assembly includes a slide fixed to the upper side of the support, the slide having a groove, a slider slidably connected in the groove, an elastic element being provided between the slider and the inner wall of the groove, a mounting seat being fixed to the top of the slider, and an impact component for impacting the ship hull model being mounted on the mounting seat, the impact component being an impact block or an impact plate.

[0016] Preferably, the impact assembly further includes a second rotating rod rotatably connected to the bracket, the second rotating rod being provided with a driven gear, the first rotating rod being provided with a missing gear that intermittently meshes with the driven gear, the top of the first rotating rod being provided with a winding portion, a pull rope being wound and connected to the winding portion, and the end of the pull rope away from the winding portion passing through the slide and connected to the slider.

[0017] Preferably, the winding part includes a second bidirectional screw rotatably connected to a second rotating rod, with a second sleeve threaded to both ends of the second bidirectional screw, and a winding plate provided on each of the second sleeves, and the pull rope is wound and connected between the two winding plates.

[0018] Preferably, the positioning component includes a third elastic telescopic rod fixed on the bracket. The top of the third elastic telescopic rod is fixed with an arc-shaped plate coaxially arranged with the rotating ratchet. The arc-shaped plate is provided with a plurality of positioning rods. The rotating ratchet is provided with positioning holes that cooperate with the positioning rods. An arc-shaped force-bearing block is fixed on the arc-shaped plate through a connecting plate. A pressing block that moves against the arc-shaped force-bearing block is fixed on the cam. The arc-shaped force-bearing block and the pressing block are provided with matching pressing inclined surfaces. The plurality of positioning rods are all configured as elastic telescopic inserts, and the plurality of positioning rods are arranged on the arc-shaped plate at unequal intervals around the circumference.

[0019] This invention also discloses a hull simulation test method, which, by applying a hull simulation test device, includes the following steps:

[0020] S1: Place the ship model on the placement base and use the relatively movable clamping plates on the placement base to fix the ship model.

[0021] S2: Then control the rotating impact mechanism to work, the rotating motor runs, the output shaft of the rotating motor drives the first rotating rod to rotate, the first rotating rod drives the cam to rotate, the cam rotates and drives the pawl to move through the fixed rod, the second elastic telescopic rod always pushes the pawl to abut against the rotating ratchet, the pawl pushes the rotating ratchet to rotate intermittently when it moves with the fixed rod, so that the rotating ratchet drives the ship model fixed on the upper side to rotate automatically, simplifying the adjustment steps;

[0022] S3: When the rotating component drives the ratchet to rotate, the missing gear on the outside of the first rotating rod meshes with the driven gear of the second rotating rod, and the second rotating rod drives the winding part to rotate, so that the winding part winds up the pull rope, and the pull rope drives the mounting base to move away from the hull model through the slider.

[0023] S4: After the ratchet has finished rotating, the missing gear no longer meshes with the driven gear, the pull rope no longer applies tension to the slider, and the elastic element pushes the slider back, causing the slider to drive the impact component on the mounting base to impact the ship model after the angle has been adjusted, thus realizing the impact test on different positions of the ship model.

[0024] Compared with the prior art, the present invention provides a ship hull simulation test device and method, which has the following beneficial effects:

[0025] 1. The hull simulation test device and method drive the hull model on the rotating ratchet to rotate through the rotating component, so that the impact component impacts the rotated hull model. The rotating component and the impact component alternate intermittently, which can quickly adjust the impact position and angle of the hull model according to the test needs, simplifying the adjustment steps and increasing the diversity of the test, so as to make the test results more comprehensive, thereby enabling precise structural optimization and safety assessment of the hull.

[0026] 2. The hull simulation test device and method, by movably setting a first elastic telescopic rod between the placement seat and the ring frame, allows the hull model to move along the impact direction when it is impacted, simulating the situation where the hull moves to buffer the impact force after being impacted, so that the impact test on the hull model can realistically simulate the actual impact situation and improve the accuracy of the test results.

[0027] 3. The hull simulation test device and method, by setting a positioning component on the lower side of the rotating ratchet, can limit the rotation of the rotating ratchet when it is not under force, so as to prevent the rotating ratchet connected to it from rotating when the hull model is under force, which would affect the actual force on the hull model and the subsequent gradual angle adjustment of the rotating ratchet. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0031] Figure 4 This is a schematic diagram of the structure of the top of the rotating ratchet of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the bottom of the rotating ratchet of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the placement base of the present invention;

[0034] Figure 7 This is a schematic diagram of the external structure of the carriage of the present invention;

[0035] Figure 8 For the present invention Figure 7 A partially enlarged structural diagram of section A in the middle;

[0036] Figure 9 This is a schematic diagram of the external structure of the second rotating rod of the present invention;

[0037] Figure 10 This is a schematic diagram of the positioning component of the present invention;

[0038] Figure 11 This is a top view of the positioning component of the present invention.

[0039] In the diagram: 1. Bracket; 101. Rotating shaft; 2. Rotating ratchet; 201. Positioning hole; 3. Placement seat; 301. Frame; 302. First bidirectional screw; 303. First sleeve; 304. Clamping plate; 305. Knob; 4. Ring frame; 401. First elastic telescopic rod; 5. Base; 501. Ball bearing; 6. Rotary motor; 601. First rotating rod; 6011. Gear missing; 602. Cam; 6021. Extrusion block; 603. Fixing element. 604. Paw; 605. Second elastic telescopic rod; 7. Slide; 701. Slide groove; 702. Slider; 703. Elastic element; 704. Mounting base; 705. Impacting component; 8. Second rotating rod; 801. Driven gear; 9. Winding part; 901. Second bidirectional screw; 902. Second sleeve; 903. Winding plate; 10. Pull rope; 11. Third elastic telescopic rod; 111. Arc plate; 112. Positioning rod; 12. Arc-shaped force block. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A ship hull simulation test device, including a support frame 1, and further comprising:

[0044] Rotate ratchet 2, which is located on the upper side of bracket 1. A rotating shaft 101 connected to the rotating ratchet 2 is rotatably connected to bracket 1.

[0045] Placement seat 3, mounted on rotating ratchet 2, is used to place the ship hull model; and

[0046] The rotating impact mechanism includes a rotating component for driving the intermittent rotation of the rotating ratchet 2 and an impact component for impacting the hull model. The rotation of the rotating ratchet 2 and the impact of the impact component work alternately.

[0047] The bracket 1 is equipped with a positioning component for positioning the rotating ratchet 2.

[0048] Specifically, the hull model is placed on the placement seat 3 and fixed. Then, the rotating impact mechanism is controlled to operate. The rotating component drives the hull model on the rotating ratchet 2 to rotate, so that the impact component impacts the rotated hull model. The rotating component and the impact component alternate intermittently, which can quickly adjust the impact position and angle of the hull model according to the test needs, simplifying the adjustment steps and increasing the diversity of tests, thus making the test results more comprehensive. Furthermore, a positioning component is set on the lower side of the rotating ratchet 2, which can limit the rotation of the rotating ratchet 2 when it is not under force, so as to prevent the rotating ratchet 2 connected to it from rotating when the hull model is under force, which would affect the actual force on the hull model and the subsequent gradual angle adjustment of the rotating ratchet 2, thereby enabling precise structural optimization and safety assessment of the hull.

[0049] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As a preferred embodiment, based on the above method, the placement seat 3 further includes a frame 301 disposed on the rotating ratchet 2, a first bidirectional screw 302 rotatably connected to the frame 301, a first sleeve 303 threadedly connected to both ends of the first bidirectional screw 302, a clamping plate 304 fixedly connected to the first sleeve 303, and a knob 305 disposed at the end of the first bidirectional screw 302.

[0050] Specifically, when fixing the hull model, the hull model is placed on the frame 301. By rotating the knob 305, the knob 305 drives the first bidirectional screw 302 to rotate. The first sleeves 303 at both ends of the first bidirectional screw 302 move towards each other, so that the clamping plates 304 on the two first sleeves 303 cooperate to fix the hull model, prevent it from loosening, and facilitate subsequent impact simulation tests on the hull model.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As a preferred embodiment, based on the above method, the top of the rotating ratchet 2 is further fixed with a ring frame 4 by a connecting rod. Several first elastic telescopic rods 401 are horizontally rotatably connected to the ring frame 4 by a pin. The end of each first elastic telescopic rod 401 away from the ring frame 4 is movably connected to the frame 301.

[0052] Specifically, by movably setting the first elastic telescopic rod 401 between the placement seat 3 and the ring frame 4, the ship model can move along the impact direction when it is impacted, simulating the situation where the ship moves to buffer the impact force after being impacted. This allows the impact test of the ship model to realistically simulate the actual impact situation and improve the accuracy of the test results.

[0053] Reference Figure 6 As a preferred embodiment, based on the above method, the bottom of the frame 301 is further provided with a base 5, and the bottom of the base 5 is provided with a ball bearing 501 that slides with the rotating ratchet 2.

[0054] Specifically, by setting ball bearings 501 at the bottom of frame 301 that slide with the rotating ratchet 2, the frictional resistance of frame 301 during movement can be reduced while supporting the placement seat 3, thereby improving the smoothness of the placement seat 3 when it is under force.

[0055] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As a preferred embodiment, based on the above method, the rotating assembly further includes a rotary motor 6 fixedly mounted on the lower side of the bracket 1. The output shaft of the rotary motor 6 passes through the bracket 1 and is connected to a first rotating rod 601. A cam 602 is fixedly mounted on the top of the first rotating rod 601. A fixed rod 603 is fixedly mounted on the end of the cam 602 away from the first rotating rod 601. A pawl 604 is movably connected to the outside of the fixed rod 603 and moves against the ratchet teeth of the rotating ratchet 2. A second elastic telescopic rod 605 is movably arranged between the pawl 604 and the bracket 1.

[0056] Specifically, when the rotating component is working, the rotating motor 6 is controlled to run. The output shaft of the rotating motor 6 drives the first rotating rod 601 to rotate. When the first rotating rod 601 rotates, it drives the cam 602 to rotate. When the cam 602 rotates, it drives the pawl 604 to move through the fixed rod 603. The second elastic telescopic rod 605 always pushes the pawl 604 to abut against the rotating ratchet 2. When the pawl 604 moves with the fixed rod 603, it pushes the rotating ratchet 2 to rotate intermittently, so that the rotating ratchet 2 drives the hull model fixed on the upper side by the placement seat 3 to rotate automatically. This simplifies the adjustment steps and improves the comprehensiveness and efficiency of the test.

[0057] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As a preferred embodiment, based on the above method, the impact assembly further includes a slide 7 fixed on the upper side of the support 1. The slide 7 has a slide groove 701. A slider 702 is slidably connected in the slide groove 701. An elastic element 703 is provided between the slider 702 and the inner wall of the slide groove 701. A mounting seat 704 is fixed on the top of the slider 702. An impact member 705 for impacting the ship hull model is installed on the mounting seat 704. The impact member 705 is an impact block or an impact plate.

[0058] Furthermore, the impact assembly also includes a second rotating rod 8 rotatably connected to the bracket 1. The second rotating rod 8 is provided with a driven gear 801. The first rotating rod 601 is provided with a missing gear 6011 that intermittently meshes with the driven gear 801. The top of the first rotating rod 601 is provided with a winding part 9. A pull rope 10 is wound and connected to the winding part 9. The end of the pull rope 10 away from the winding part 9 passes through the slide 7 and is connected to the slider 702.

[0059] Specifically, when the rotating assembly drives the ratchet 2 to rotate, the missing gear 6011 on the outer side of the first rotating rod 601 meshes with the driven gear 801 of the second rotating rod 8, causing the second rotating rod 8 to rotate the winding part 9, which in turn winds the pull rope 10. The pull rope 10 applies tension to the slider 702, causing the slider 702 to move the mounting base 704 away from the hull model. The elastic element 703 is compressed. The elastic element 703 can be a spring. After the ratchet 2 has finished rotating, the missing gear 6011... The sliding block 702 is no longer engaged with the driven gear 801, and the pull rope 10 no longer applies tension to the slider 702. The elastic element 703 pushes the slider 702 back, causing the slider 702 to drive the impact member 705 on the mounting base 704 to impact the ship model after the angle has been adjusted. The impact member 705 can be an impact block or an impact plate to achieve impact effects on different areas of the ship model. It should be noted that the height of the slide 7 can be manually adjusted, thereby adjusting the impact member 705 to conduct impact tests on different height positions of the ship model.

[0060] Reference Figure 7 , Figure 8 and Figure 9 As a preferred embodiment, based on the above method, the winding part 9 further includes a second bidirectional screw 901 rotatably connected to the second rotating rod 8. Both ends of the second bidirectional screw 901 are threadedly connected to a second sleeve 902. Each second sleeve 902 is provided with a winding plate 903, and the pull rope 10 is wound and connected between the two winding plates 903.

[0061] Specifically, by rotating the second bidirectional screw 901, the second sleeves 902 at both ends of the second bidirectional screw 901 are moved relative to each other, thereby adjusting the distance between the two winding plates 903. This allows the second rotating rod 8 to rotate one revolution to adjust the winding distance of the pull rope 10, and adjust the compression distance of the elastic element 703, thereby adjusting the impact force of the impact component 705 on the ship model.

[0062] Reference Figure 1 , Figure 2 , Figure 3 , Figure 10 and Figure 11 As a preferred embodiment, based on the above method, the positioning component further includes a third elastic telescopic rod 11 fixed on the bracket 1. The top of the third elastic telescopic rod 11 is fixed with an arc-shaped plate 111 coaxially arranged with the rotating ratchet 2. The arc-shaped plate 111 is provided with a plurality of positioning rods 112. The rotating ratchet 2 is provided with positioning holes 201 that cooperate with the positioning rods 112. An arc-shaped force-bearing block 12 is fixed on the arc-shaped plate 111 through a connecting plate. A pressing block 6021 that moves against the arc-shaped force-bearing block 12 is fixed on the cam 602. The arc-shaped force-bearing block 12 and the pressing block 6021 are provided with cooperating pressing inclined surfaces.

[0063] Furthermore, several positioning rods 112 are all configured as elastic telescopic inserts, and the several positioning rods 112 are arranged at unequal intervals around the circumference on the arc-shaped plate 111.

[0064] Specifically, the rotating assembly drives the cam 602 to rotate. Before the pawl 604 engages with the ratchet teeth of the rotating ratchet 2 to push it, the pressing block 6021 on the cam 602 presses down on the arc-shaped force block 12, causing the arc-shaped force block 12 to move down through the connecting plate and the arc-shaped plate 111. The arc-shaped plate 111 then moves the positioning rod 112 down, releasing the restriction on the rotating ratchet 2. Subsequently, the pawl 604 pushes the rotating ratchet 2 to rotate. After the rotating ratchet 2 has finished rotating, the pressing block 6021 no longer presses against the arc-shaped force block 12. The third elastic telescopic rod... 11. Push the arc plate 111 upward. The arc plate 111 has positioning rods 112 arranged in a circumference with unequal intervals, so that at least one positioning rod 112 is always connected to the positioning hole 201 of the rotating ratchet 2. The other positioning rods 112 that are not connected to the positioning hole 201 will automatically retract, thereby realizing the positioning of the rotating ratchet 2 after the angle is adjusted. This prevents the rotating ratchet 2 connected to it from rotating when the hull model is subjected to force, which would affect the actual force on the hull model and the normal progress of subsequent gradual angle adjustment of the rotating ratchet 2.

[0065] Working test method: Place the ship model on the placement seat 3, and rotate the knob 305. The knob 305 drives the first bidirectional screw 302 to rotate. The first sleeves 303 at both ends of the first bidirectional screw 302 move towards each other, so that the clamping plates 304 on the two first sleeves 303 cooperate to fix the ship model and prevent it from loosening.

[0066] Subsequently, the rotary motor 6 is controlled to run. The output shaft of the rotary motor 6 drives the first rotating rod 601 to rotate. When the first rotating rod 601 rotates, it drives the cam 602 to rotate. When the cam 602 rotates, it drives the pawl 604 to move through the fixed rod 603. The second elastic telescopic rod 605 always pushes the pawl 604 to abut against the rotating ratchet 2. When the pawl 604 moves with the fixed rod 603, it pushes the rotating ratchet 2 to rotate intermittently, so that the rotating ratchet 2 drives the hull model fixed on the upper side by the placement seat 3 to rotate automatically. This simplifies the adjustment steps and improves the comprehensiveness and efficiency of the test.

[0067] When the rotating assembly drives the ratchet 2 to rotate, the missing gear 6011 on the outer side of the first rotating rod 601 meshes with the driven gear 801 of the second rotating rod 8, causing the second rotating rod 8 to rotate the winding part 9, which in turn winds the pull rope 10. The pull rope 10 applies tension to the slider 702, causing the slider 702 to move the mounting base 704 away from the hull model. The elastic element 703 is compressed. The elastic element 703 can be a spring. After the ratchet 2 has finished rotating, the missing gear 6011 no longer... Engaging with the driven gear 801, the pull rope 10 no longer applies tension to the slider 702. The elastic element 703 pushes the slider 702 back, causing the slider 702 to drive the impact member 705 on the mounting base 704 to impact the ship model after the angle has been adjusted. The impact member 705 can be an impact block or an impact plate to achieve impact effects on different areas of the ship model. It should be noted that the height of the slide 7 can be manually adjusted, thereby adjusting the impact member 705 to conduct impact tests on different height positions of the ship model.

[0068] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A ship hull simulation test device, comprising a support frame (1), characterized in that, Also includes: Rotate the ratchet (2), which is placed on the upper side of the bracket (1), and the bracket (1) is rotatably connected to the rotating shaft (101) connected to the rotating ratchet (2). Placement seat (3), said placement seat (3) is mounted on a rotating ratchet (2) for placing the hull model; and The rotating impact mechanism includes a rotating component for driving the rotating ratchet (2) to rotate intermittently and an impact component for impacting the hull model. The rotating action of the rotating ratchet (2) and the impact action of the impact component work alternately. The bracket (1) is provided with a positioning component for positioning the rotating ratchet (2); The placement seat (3) includes a frame (301) mounted on a rotating ratchet (2), a first bidirectional screw (302) rotatably connected to the frame (301), a first sleeve (303) threaded to both ends of the first bidirectional screw (302), a clamping plate (304) fixedly connected to the first sleeve (303), and a knob (305) mounted at the end of the first bidirectional screw (302). The top of the rotating ratchet (2) is fixed with a ring frame (4) by a connecting rod. Several first elastic telescopic rods (401) are horizontally rotatably connected to the ring frame (4) by a pin. The end of each first elastic telescopic rod (401) away from the ring frame (4) is movably connected to the frame (301). The rotating assembly includes a rotary motor (6) fixedly mounted on the lower side of the bracket (1). The output shaft of the rotary motor (6) passes through the bracket (1) and is connected to a first rotating rod (601). A cam (602) is fixedly mounted on the top of the first rotating rod (601). A fixed rod (603) is fixedly mounted on the end of the cam (602) away from the first rotating rod (601). A pawl (604) is movably connected to the outside of the fixed rod (603) and moves against the ratchet teeth of the rotating ratchet (2). A second elastic telescopic rod (605) is movably arranged between the pawl (604) and the bracket (1). The impact assembly includes a slide (7) fixed on the upper side of the bracket (1). The slide (7) has a slide groove (701). A slider (702) is slidably connected in the slide groove (701). An elastic element (703) is provided between the slider (702) and the inner wall of the slide groove (701). A mounting seat (704) is fixed on the top of the slider (702). An impact component (705) for impacting the ship hull model is installed on the mounting seat (704). The impact component (705) is an impact block or an impact plate.

2. The ship hull simulation test device according to claim 1, characterized in that, The bottom of the frame (301) is fixedly provided with a base (5), and the bottom of the base (5) is provided with a ball (501) that slides with the rotating ratchet (2).

3. The ship hull simulation test device according to claim 2, characterized in that, The impact assembly also includes a second rotating rod (8) rotatably connected to the bracket (1). The second rotating rod (8) is provided with a driven gear (801). The first rotating rod (601) is provided with a missing gear (6011) that intermittently meshes with the driven gear (801). The top of the first rotating rod (601) is provided with a winding part (9). A pull rope (10) is wound and connected to the winding part (9). One end of the pull rope (10) away from the winding part (9) passes through the slide (7) and is connected to the slider (702).

4. The ship hull simulation test device according to claim 3, characterized in that, The winding part (9) includes a second bidirectional screw (901) rotatably connected to the second rotating rod (8). Both ends of the second bidirectional screw (901) are threaded with a second sleeve (902). Each second sleeve (902) is provided with a winding plate (903). The pull rope (10) is wound and connected between the two winding plates (903).

5. The ship hull simulation test device according to claim 4, characterized in that, The positioning assembly includes a third elastic telescopic rod (11) fixed on the bracket (1). The top of the third elastic telescopic rod (11) is fixed with an arc plate (111) coaxially arranged with the rotating ratchet (2). The arc plate (111) is provided with a plurality of positioning rods (112). The rotating ratchet (2) is provided with a positioning hole (201) that cooperates with the positioning rod (112). The arc plate (111) is fixed with an arc-shaped force block (12) through a connecting plate. The cam (602) is fixed with a pressing block (6021) that moves against the arc-shaped force block (12). The arc-shaped force block (12) and the pressing block (6021) are provided with a matching pressing slope. The plurality of positioning rods (112) are all configured as elastic telescopic inserts, and the plurality of positioning rods (112) are arranged on the arc plate (111) at unequal intervals around the circumference.

6. A method for hull simulation testing, comprising using a hull simulation testing apparatus as described in claim 5, characterized in that, Includes the following steps: S1: Place the hull model on the placement seat (3) and use the relatively movable clamping plate (304) on the placement seat (3) to fix the hull model; S2: Then control the rotating impact mechanism to work, the rotating motor (6) runs, the output shaft of the rotating motor (6) drives the first rotating rod (601) to rotate, when the first rotating rod (601) rotates, it drives the cam (602) to rotate, when the cam (602) rotates, it drives the pawl (604) to move through the fixed rod (603), the second elastic telescopic rod (605) always pushes the pawl (604) to abut against the rotating ratchet (2), when the pawl (604) moves with the fixed rod (603), it pushes the rotating ratchet (2) to rotate intermittently, so that the rotating ratchet (2) drives the hull model fixed by the placement seat (3) on the upper side to rotate automatically, simplifying the adjustment steps; S3: When the rotating component drives the rotating ratchet (2) to rotate, the missing gear (6011) on the outside of the first rotating rod (601) meshes with the driven gear (801) of the second rotating rod (8), and the second rotating rod (8) drives the winding part (9) to rotate, so that the winding part (9) winds up the pull rope (10), and the pull rope (10) drives the mounting base (704) to move away from the hull model through the slider (702); S4: After the ratchet (2) has finished rotating, the missing gear (6011) no longer meshes with the driven gear (801) for transmission, the pull rope (10) no longer applies tension to the slider (702), and the elastic element (703) pushes the slider (702) back, so that the slider (702) drives the impact component (705) on the mounting base (704) to impact the ship model after the angle has been adjusted, thereby realizing the impact test on different positions of the ship model.

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