A ship hydroelastic response test device

Abstract

The present invention discloses a ship hydroelastic response testing device, which includes a base. A base cylinder is sleeved inside the base. The top of the base cylinder is connected to a tray cylinder. The top of the tray cylinder is provided with an opening. Disks are provided on both the upper inner wall and the lower inner wall of the tray cylinder. A number of first pressure sensors are connected in an array between the disks on the upper and lower sides. The top of the disk on the upper side extends out of the opening of the tray cylinder, and a cylinder is connected to its top. A plurality of mounting seats are arranged in an array on the outer wall of the disk on the upper side. A second pressure sensor is installed on each mounting seat. A spring is connected between the second pressure sensor and the tray cylinder. An inner cylinder is sleeved inside the cylinder, and a testing device is installed inside the inner cylinder. In the present invention, the inclination of the device is monitored by the first pressure sensors arranged between the disks on the upper and lower sides, and the forces on the side during the occurrence of the inclination are detected by the second pressure sensors arranged in a circumferential array. In this way, the measurement data of the pressure sensors are transmitted to the testing device for analysis, and the response data of the hydroelasticity can be obtained.

Description

Technical Field

[0001] The present invention relates to a testing device, and particularly to a testing device for ship hydroelastic response. Background Art

[0002] When existing ships sail on the water surface, due to the surface tension of water, the ships floating on the water surface are prone to sway, which also reflects the elastic force of the water surface. However, there is no device on existing ships that can effectively and comprehensively detect the influence of hydroelasticity on the ships, so as to obtain more accurate data, and develop new ship hull structures that can effectively cope with hydroelasticity and maintain the stability of the hull. Therefore, a testing device for ship hydroelastic response is proposed. Summary of the Invention

[0003] Object of the Invention: The object of the present invention is to provide a testing device for ship hydroelastic response, so as to efficiently, comprehensively and accurately measure the hydroelastic data affecting the stability of the ship, in order to facilitate the optimization of the hull structure and the development of new hull structures.

[0004] Technical Solution: The present invention includes a base, a base cylinder is sleeved inside the base, a tray cylinder is connected to the top of the base cylinder, an opening is provided at the top of the tray cylinder, disks are provided on the upper inner wall and the lower inner wall of the tray cylinder, a plurality of first pressure sensors are arrayedly connected between the disks on the upper and lower sides, the top of the disk on the upper side extends out of the opening of the tray cylinder, and a cylinder is connected to its top. A plurality of mounting seats are arrayed on the outer wall of the disk on the upper side, and a second pressure sensor is installed on each mounting seat. A spring is connected between the second pressure sensor and the tray cylinder. An inner cylinder is sleeved inside the cylinder, and a testing device is installed inside the inner cylinder.

[0005] Counterweight rings are symmetrically provided on the left and right sides between the inner cylinder and the cylinder.

[0006] The lower inner wall of the cylinder is arrayedly and fixedly connected with limiting vertical rods, and each counterweight ring and the limiting vertical rod on its respective side are slidably sleeved with each other.

[0007] A positioning mechanism is provided at the top of the testing device.

[0008] The positioning mechanism includes a sliding cylinder, sliding grooves are symmetrically opened on both sides of the sliding cylinder, a screw rod is rotatably connected inside the sliding cylinder, a threaded sleeve ring is threadedly sleeved on the outer side of the screw rod, the threaded sleeve ring is slidably arranged inside the sliding cylinder, and connecting rods are fixedly connected to both the left and right sides of the threaded sleeve ring.

[0009] The mutually remote ends of the connecting rods both extend through the sliding grooves to the left and right outer sides of the sliding cylinder, and pressing plates are fixedly connected to the bottoms of the mutually remote sides of the two connecting rods. The bottom of the pressing plate is in close contact with and presses against the upper end of the counterweight ring.

[0010] A plurality of slots are arrayed between the base cylinder and the base. A rotating plate is rotatably connected in each slot. A convex plate is provided on the inner side of the rotating plate, and the convex plate is in sliding fit with the base cylinder on its respective side.

[0011] A limiting plate is connected to the top of the rotating plate, and the limiting plate is connected to the upper end surface of the base cylinder.

[0012] An electric cylinder is installed on the lower inner wall of the base cylinder. A plurality of telescopic rods are arrayed around the electric cylinder. The electric cylinder and the telescopic rods are connected to a tray cylinder at the top.

[0013] Beneficial effects: In the present invention, the inclination of the device is monitored by the first pressure sensors arranged between the upper and lower discs, and the forces on the side during the occurrence of inclination are detected by the second pressure sensors arranged in a circumferential array. In this way, the measured data of the pressure sensors are transmitted to the test equipment for analysis, and the response data of the hydroelasticity can be obtained; by pressing the lower end surface of the pressing plate against the upper end surface of the counterweight ring, the counterweight ring is fixed, preventing it from shaking when used on a ship and affecting the accurate measurement of data. In this way, the influence of hydroelasticity at different masses can be explored by adding a counterweight ring, and the influence of hydroelasticity at different heights can also be explored by adjusting its height with an electric cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the main sectional view of the present invention;

[0015] Figure 2 is the top sectional view at the L-shaped connecting rod of the present invention;

[0016] Figure 3 is the top sectional view at the cylinder of the present invention;

[0017] Figure 4 is the top sectional view at the base cylinder of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] As Figures 1 to 4As shown in the figure, the present invention includes a base 1. A flange 2 is provided on the outer side of the base 1. A base cylinder 4 is sleeved inside the base 1. A plurality of slots 3 are arranged in an array between the base cylinder 4 and the base 1. A rotating plate 8 is rotatably connected in each slot 3. A convex plate 9 is provided on the inner side of the rotating plate 8. The convex plate 9 is slidably attached to the base cylinder 4 on its respective side. A limiting plate 10 is connected to the top of the rotating plate 8. A bolt is provided between the limiting plate 10 and the upper end surface of the base cylinder 4. An electric cylinder 5 is installed on the lower inner wall of the base cylinder 4. A plurality of telescopic rods 6 are arranged in an array around the electric cylinder 5. The electric cylinder 5 and the telescopic rods 6 are connected to a tray cylinder 7 at the top. The tray cylinder 7 has an opening at the top. Disks 12 are provided on both the upper inner wall and the lower inner wall of the tray cylinder 7. A number of first pressure sensors 13 are connected in an array between the upper and lower disks 12. The top of the disk 12 on the upper side extends out of the opening of the tray cylinder 7, and a cylinder 17 is connected to its top. A plurality of mounting seats 14 are arranged in an array on the outer wall of the upper disk 12. A second pressure sensor 15 is installed on each mounting seat 14. A spring 16 is connected between the second pressure sensor 15 and the tray cylinder 7. As Figure 3 shown.

[0020] When the base cylinder 4 is installed in the base 1, the outer side of the base cylinder 4 will push the convex plates 9 and the lower ends of the rotating plates 8 to rotate, thereby driving the limiting plates 10 fixedly connected to the upper ends of the rotating plates 8 to gradually approach each other and fit and limit with the upper end surface of the base cylinder 4. Then, it is fixedly installed by bolts. At the same time, since the upper end of the electric cylinder 5 fixedly installed on the lower inner wall of the base cylinder 4 is fixedly connected to the tray cylinder 7, and the tray cylinder 7 is provided with upper and lower disks 12, and the upper and lower disks 12 are fixedly connected by the first pressure sensors 13 arranged in a circumferential array. At the same time, mounting seats 14 are fixedly connected in an array on the outer side of the upper disk 12. A second pressure sensor 15 is fixedly installed on each mounting seat 14. A spring 16 is fixedly connected between the second pressure sensor 15 and the inner wall of the tray cylinder 7. In this way, under the action of hydroelasticity, when the ship sways, the inclination of the device can be monitored through the first pressure sensors 13 arranged between the upper and lower disks 12, and the force on the side during the occurrence of inclination can be detected through the second pressure sensors 15 arranged in a circumferential array. By transmitting the measurement data of the pressure sensors to the test device 19 for analysis, the response data of hydroelasticity can be obtained.

[0021] An inner cylinder 18 is sleeved inside the cylinder 17. Semi-circular counterweight rings 20 are symmetrically provided on both the left and right sides between the inner cylinder 18 and the cylinder 17. The counterweight rings are semi-circular counterweight rings. As Figure 2As shown, a plurality of limiting vertical rods are fixedly connected to the inner wall of the lower part of the cylinder 17 in an array, and each counterweight ring 20 is slidably sleeved with the limiting vertical rod on its respective side. A testing device 19 is installed in the inner cylinder 18, and a positioning mechanism is arranged at the top of the testing device 19. The positioning mechanism includes a sliding cylinder 21, slideways 23 are symmetrically arranged on both sides of the sliding cylinder 21, a screw rod 22 is rotatably connected in the sliding cylinder 21, a threaded sleeve ring 24 is sleeved on the outer side of the screw rod 22, the threaded sleeve ring 24 is slidably arranged in the sliding cylinder 21, L-shaped connecting rods 25 are fixedly connected to both the left and right sides of the threaded sleeve ring 24, and the mutually remote ends of the L-shaped connecting rods 25 both extend through the slideways 23 to the outer sides of the left and right of the sliding cylinder 21. Pressing plates 26 are fixedly connected to the bottoms of the mutually remote sides of the two L-shaped connecting rods 25, and the bottoms of the pressing plates 26 are in fit and pressing connection with the upper ends of the counterweight rings 20. It is convenient to perform fit and pressing, so as to fix the counterweight rings 20. Since the counterweight rings 20 are slidably sleeved with the limiting vertical rods arranged in an array on the inner wall of the lower part of the cylinder 17, the counterweight rings 20 on the left and right sides can be further fixed and limited, preventing shaking during use on a ship and affecting the accurate measurement of data. In this way, the influence of water elasticity at different masses can be explored by adding counterweight rings 20, and the height can also be adjusted by the electric cylinder 5 to explore the influence of water elasticity at different heights.

Claims

1. A ship hydroelastic response test device, characterized in that, It includes a base (1). A base cylinder (4) is sleeved inside the base. A tray cylinder (7) is connected to the top of the base cylinder. The top of the tray cylinder has an opening. Discs (12) are provided on both the upper inner wall and the lower inner wall of the tray cylinder. A number of first pressure sensors (13) are connected in an array between the discs on the upper and lower sides. The top of the disc on the upper side extends out of the opening of the tray cylinder, and a cylinder (17) is connected to its top. A plurality of mounting seats (14) are arrayed on the outer wall of the upper disc. A second pressure sensor (15) is installed on each mounting seat. A spring (16) is connected between the second pressure sensor and the tray cylinder. An inner cylinder (18) is sleeved inside the cylinder (17), and a testing device (19) is installed inside the inner cylinder. Counterweight rings (20) are symmetrically arranged on the left and right sides between the inner cylinder (18) and the cylinder (17). The lower inner wall of the cylinder (17) is fixedly connected with limiting vertical rods in an array. Each counterweight ring and the limiting vertical rod on its respective side are slidably sleeved with each other. An electric cylinder (5) is installed on the lower inner wall of the base cylinder. A plurality of telescopic rods (6) are arrayed around the electric cylinder. The electric cylinder and the telescopic rods are connected to the tray cylinder (7) at the top.

2. The ship hydroelastic response testing device according to claim 1, characterized in that, A positioning mechanism is provided at the top of the testing device.

3. The ship hydroelastic response test equipment according to claim 2, characterized in that, The positioning mechanism includes a sliding cylinder (21). Sliding channels (23) are symmetrically opened on both sides of the sliding cylinder. A screw rod (22) is rotatably connected inside the sliding cylinder. A threaded sleeve ring (24) is threadedly sleeved on the outer side of the screw rod. The threaded sleeve ring is slidably arranged inside the sliding cylinder. Connecting rods are fixedly connected to both the left and right sides of the threaded sleeve ring.

4. A ship hydroelastic response test device according to claim 3, characterized in that, One end of each of the connecting rods away from each other passes through the sliding channels and extends to the left and right outer sides of the sliding cylinder. Pressing plates (26) are fixedly connected to the bottom of the sides of the two connecting rods away from each other. The bottom of the pressing plate (26) is in close contact with and presses against the upper end of the counterweight ring.

5. The ship hydroelastic response test equipment according to claim 1, characterized in that A plurality of grooves (3) are arrayed between the base cylinder and the base. A rotating plate (8) is rotatably connected inside each groove (3). A convex plate (9) is provided inside the rotating plate (8). The convex plate (9) is in sliding contact with the base cylinder (4) on its respective side.

6. The ship hydroelastic response test equipment according to claim 5, characterized in that, A limiting plate (10) is connected to the top of the rotating plate (8). The limiting plate (10) is connected to the upper end face of the base cylinder (4).

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