CN209764369U - Ship impact centrifugal simulation device - Google Patents
Ship impact centrifugal simulation device Download PDFInfo
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- CN209764369U CN209764369U CN201920002684.7U CN201920002684U CN209764369U CN 209764369 U CN209764369 U CN 209764369U CN 201920002684 U CN201920002684 U CN 201920002684U CN 209764369 U CN209764369 U CN 209764369U
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- 238000004088 simulation Methods 0.000 title claims description 14
- 238000005119 centrifugation Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 3
- 238000009863 impact test Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 20
- 230000009471 action Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a boats and ships striking centrifugation analogue means. The pendulum bob type impact test device comprises a loading support, a pendulum bob motion device, an air cylinder motion device and a model box, wherein the loading support is arranged on the upper end surface of the model box, an angle adjusting disc is arranged on the upper end surface of the loading support, a pendulum bob fixing beam is arranged on the upper surface of a small flange of the angle adjusting disc, two connecting plates are fixed on the lower surface of the pendulum bob fixing beam, bearings are embedded in round holes of the two connecting plates, two ends of a pendulum bob rotating shaft are respectively arranged in the bearings of the two connecting plates, a pendulum rod is fixedly connected in the middle of the pendulum bob rotating shaft; the cylinder fixing block is arranged on the upper surface of one of the horizontal sliding plates, a cylinder extension rod is inserted into a circular through hole formed in the cylinder fixing block and connected with the brake cylinder, and the brake cylinder actuating rod is arranged at the end part of the brake cylinder. The device has the obvious advantages of large range of simulated ship tonnage and speed, flexible and adjustable impact position and direction and the like.
Description
Technical Field
the utility model relates to a geotechnical centrifugation analogue test device especially relates to a boats and ships striking centrifugation analogue means.
Background
Compared with a field test method, the ship impact response of the structure foundation such as a pier, an offshore platform and the like in the geotechnical centrifuge is simulated, and the ship impact response simulation method has the advantages of high cost performance, variable working conditions, stable test environment, reliable research results and the like. At present, the test device for simulating impact in the geotechnical centrifuge at home and abroad mainly has two types, namely a slide rail type test device and an electromagnetic gun type test device, which have certain defects. The slide rail type impact device occupies a large space, is complex, is difficult to flexibly adjust the installation position of the device, and has poor applicability to impact tests with variable directions and positions. The electromagnetic gun type impact device has the problems of incapability of simulating large-mass objects, high technical requirements and the like, and is only suitable for impact simulation of high-speed vehicles, speedboats and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem in the background art, the utility model provides a test device of boats and ships striking simulates in geotechnique centrifuge. The ship impact centrifugal simulation device adopts a pendulum design scheme, and uses a rotary encoder to measure impact speed; the impact quality of the device is variable, the impact speed, the position and the direction are adjustable, and the impact speed and the rebound speed are accurately measured; the device is flexible to mount, and multiple sets of devices are combined to use, so that multiple sets of independent impact tests can be completed in the operation of one centrifuge, and the test efficiency is improved. Therefore, the device has the obvious advantages of wide range of simulated ship tonnage and speed, flexible and adjustable impact position and direction and the like.
The utility model can realize the adjustment of different impact speeds by changing the initial raising angle of the pendulum bob; ship simulation of different tonnages can be realized by changing the mass of the impact block in the device; the control of different impact positions and angles can be realized by adjusting the positions of the pendulum fixing beam and the angle adjusting disc; the measurement of the impact velocity and rebound velocity in the test can be achieved by a rotary encoder.
The utility model adopts the technical proposal that:
The utility model comprises a loading bracket, a pendulum bob motion device, a cylinder motion device and a model box;
The loading support is arranged on the upper end surface of the model box, the loading support is a cuboid frame which is mainly defined by four columns, two horizontal sliding plates, two beams and two beam connecting rods, the two horizontal sliding plates are arranged in parallel, the bottoms of the two horizontal sliding plates are respectively arranged on two sides of the model box, two ends of the upper surface of each horizontal sliding plate are fixedly connected with two columns which are arranged in parallel, the tops of the two columns at the same end of the two horizontal sliding plates are connected through the beams, and the same ends of the two beams are connected through the beam connecting rods; each beam is provided with a strip-shaped hole which vertically penetrates through along the length direction; the upper bottom plate of each horizontal sliding plate is provided with two strip-shaped through holes which are respectively positioned at the two side edges of the horizontal sliding plate along the length direction, the bottom of the horizontal sliding plate is provided with a sliding chute embedded in the wall of the model box, and a loading support fixing bolt fixedly connects the horizontal sliding plate to the model box by penetrating through the sliding chute;
The pendulum bob movement device comprises an angle adjusting disc, pendulum bob fixed beams, a connecting plate, pendulum bob rotating shafts, a swinging rod and an impact block, wherein the angle adjusting disc is arranged on the upper end surfaces of the two beams and mainly comprises a large flange disc, a small flange disc and a circular column connected with the large flange disc and the small flange disc; the two sides of the large flange plate are respectively provided with a plurality of flange holes corresponding to the positions of the strip-shaped holes, and the two sides of the large flange plate are respectively arranged on the upper end surfaces of the two beams through angle adjusting plate fixing bolts which sequentially penetrate through the flange holes and the strip-shaped holes; the pendulum fixing beam is arranged on the upper surface of the small flange plate through a pendulum fixing beam positioning bolt, two parallel connecting plates are fixed in the middle of the lower surface of the pendulum fixing beam through a connecting plate mounting bolt, round holes are formed in the two connecting plates, bearings are embedded in the round holes, a pendulum rotating shaft is connected between the two connecting plates, two ends of the pendulum rotating shaft are respectively installed in the bearings of the two connecting plates, a swing rod is fixedly connected in the middle of the pendulum rotating shaft, an impact block is fixed at the bottom end of the swing rod, and the pendulum rotating shaft drives the swing rod to swing back and forth through rotation around the bearings;
The cylinder telecontrol equipment includes the cylinder fixed block, the cylinder extension rod, brake cylinder acts as the pole, the cylinder fixed block is through passing cylinder fixed block bottom plate in proper order, the cylinder fixed block positioning bolt of strip through-hole installs in the upper surface of one of them horizontal sliding plate, the inside circular through-hole that opens perpendicular to strip through-hole of cylinder fixed block, the cylinder extension rod is equipped with in the interpolation of circular through-hole, realize through the cartridge in the fixed continuous of cylinder extension rod and cylinder fixed block in the cylinder extension rod fixing bolt of cylinder fixed block upper end, the cylinder extension rod is close to the one end of striking block and is passed through the screw thread and is linked to each other with brake cylinder one end, brake cylinder is installed to the other end and is acted the.
The device is integrally fixed in a hanging basket of the centrifugal machine, and the model box is arranged towards one side close to the centrifugal machine; when the centrifuge rotates, the rotation axis of the centrifuge is perpendicular to the central axis of the angle adjusting disc, the central axis of the angle adjusting disc is along the radial direction of the centrifuge, the loading bracket is positioned at the radial inner side part of the model box, and the centrifugal force of the centrifugal rotation is shown as the direction A of fig. 1.
One of the connecting plates is provided with a rotary encoder, and the center of the end part of the pendulum rotating shaft close to the rotary encoder is provided with a round hole tightly connected with a probe of the rotary encoder. The rotary encoder is used for measuring the real-time angle change of the pendulum bob, and the speed change of the impact block is obtained through numerical differentiation and conversion.
the angle adjusting disc fixing bolt slides in the strip-shaped hole to drive the angle adjusting disc to move back and forth along the length direction of the beam under the non-screwed state, so that the position of the angle adjusting disc on the loading support is adjusted, and the position of the angle adjusting disc is fixed by screwing the angle adjusting disc fixing bolt; the cylinder fixing block positioning bolt slides in the strip-shaped through hole under the non-screwed state to drive the cylinder fixing block to move back and forth along the length direction of the horizontal sliding plate, so that the position of the cylinder fixing block on the loading support is adjusted; the position of the cylinder fixing block is fixed by screwing the positioning bolt of the cylinder fixing block.
When the brake cylinder actuating rod is not acted by the brake cylinder, the brake cylinder actuating rod extends out of the brake cylinder, and the brake cylinder actuating rod is contacted with the oscillating bar by adjusting the position of the cylinder extension rod; the brake cylinder actuating rod is retracted into the brake cylinder under the action of the brake cylinder.
The small flange plate is provided with a plurality of flange holes, the through holes at the two ends of the pendulum fixing beam change the angle of the pendulum fixing beam by aligning different flange holes, and the pendulum fixing beam is fixedly connected with the angle adjusting plate through the pendulum fixing beam positioning bolts inserted in the flange holes.
The sliding grooves of the horizontal sliding plate move back and forth along the box walls on the two sides of the model box so as to realize the position adjustment of the loading support.
The utility model has the advantages that:
(1) the utility model is suitable for a simulation boats and ships striking test in geotechnical centrifuge, can select test parameters such as pendulum rod length, angle of lifting, striking piece quality according to prototype parameter ranges such as boats and ships striking speed, boats and ships tonnage; the simulation parameters such as the position and the angle of the ship impacting the structure can be realized by adjusting the position of the angle adjusting disc and the position of the pendulum bob fixing beam.
(2) The whole set of the device of the utility model is integrated on the loading bracket, can move on the model box along with the loading bracket, and related testing instruments or sensors can be fixed on the loading bracket, thereby improving the flexibility of test arrangement; under the condition that the space of the model box allows, a plurality of sets of devices can be installed to carry out a plurality of sets of tests, and the efficiency is improved.
(3) the utility model discloses application scope is wide, simple to operate, the configuration is nimble, strong adaptability, scalability is good, is reliable boats and ships striking centrifugation analogue test device.
Drawings
fig. 1 is a schematic view of the structural principle of the present invention.
FIG. 2 is a top view taken along line A of FIG. 1
FIG. 3 is a partial sectional view taken along line B-B of FIG. 2
FIG. 4 is a schematic view of the installation of the pendulum and rotary encoder structure
FIG. 5 is an angle adjustment diagram
In the figure: 1. loading support, 2, connecting plate mounting bolt, 3, pendulum fixed beam, 4, angle adjusting disk, 5, angle adjusting disk fixing bolt, 6, connecting plate, 7, rotary encoder, 8, pendulum pivot, 9, pendulum rod, 10, striking piece, 11, braking cylinder make the pole, 12, braking cylinder, 13, cylinder extension rod, 14, cylinder fixed block positioning bolt, 15, cylinder fixed block, 16, cylinder extension rod fixing bolt, 17, bearing, 18, model case, 19, pendulum fixed beam positioning bolt, 20, loading support fixing bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model comprises a loading bracket 1, a pendulum bob motion device, a cylinder motion device and a model box 18; loading support 1 installs in model case 18 up end, loading support 1 mainly by four posts, two horizontal sliding plate, two roof beams, the cuboid frame that two roof beam connecting rods enclose, two horizontal sliding plate parallel arrangement and bottom are installed respectively in model case 18 both sides, the equal two parallel arrangement's of equal fixedly connected with post in every horizontal sliding plate upper surface both ends, two horizontal sliding plate all link to each other through the roof beam with two capital portions of one end, two roof beams all link to each other through the roof beam connecting rod with one end, every roof beam is opened along length direction has the vertical banding hole that runs through.
As shown in fig. 1 and 2, the pendulum bob movement device comprises an angle adjusting disc 4, pendulum bob fixing beams 3, a connecting plate 6, pendulum bob rotating shafts 8, pendulum rods 9 and impact blocks 10, wherein the angle adjusting disc 4 is installed on the upper end surfaces of the two beams, a plurality of flange holes corresponding to the strip-shaped holes are respectively formed in two sides of a large flange disc, and two sides of the large flange disc are respectively installed on the upper end surfaces of the two beams through angle adjusting disc fixing bolts 5 which sequentially penetrate through the flange holes and the strip-shaped holes; the upper bottom plate of each horizontal sliding plate is provided with two strip-shaped through holes which are respectively positioned at the two side edges of the horizontal sliding plate along the length direction, the bottom of the horizontal sliding plate is provided with a sliding groove embedded in the wall of the model box 18, and a loading support fixing bolt 20 fixedly connects the horizontal sliding plate to the model box 18 by penetrating through the sliding groove; the sliding grooves of the horizontal sliding plates move back and forth along the box walls on the two sides of the model box 18 so as to realize the position adjustment of the loading bracket 1.
as shown in fig. 3, the cylinder movement device includes a cylinder fixing block 15, a cylinder extension rod 13, a brake cylinder 12, and a brake cylinder actuating rod 11, wherein the cylinder fixing block 15 is installed on the upper surface of one of the horizontal sliding plates through a cylinder fixing block positioning bolt 14 sequentially penetrating through a bottom plate of the cylinder fixing block 15 and a strip-shaped through hole, a circular through hole perpendicular to the strip-shaped through hole is opened inside the cylinder fixing block 15, the cylinder extension rod 13 is inserted into the circular through hole, the cylinder extension rod 13 is fixedly connected with the cylinder fixing block 15 through a cylinder extension rod fixing bolt 16 inserted into the upper end of the cylinder fixing block 15, one end of the cylinder extension rod 13 close to the impact block 10 is connected with one end of the brake cylinder 12 through a thread, the other end of the brake cylinder 12 is installed with the brake cylinder actuating rod 11, and the length direction of. The cylinder fixing block positioning bolt 14 slides in the strip-shaped through hole under the non-screwed state to drive the cylinder fixing block 15 to move back and forth along the length direction of the horizontal sliding plate, so that the position of the cylinder fixing block 15 on the loading support 1 is adjusted; the position of the cylinder fixing block 15 is fixed by screwing the cylinder fixing block positioning bolt 14. When the brake cylinder actuating rod 11 is not acted by the brake cylinder 12, the brake cylinder actuating rod 11 extends out of the brake cylinder 12, and the brake cylinder actuating rod 11 is contacted with the oscillating bar 9 by adjusting the position of the cylinder extension rod 13; the brake cylinder actuating rod 11 is retracted into the brake cylinder 12 by the action of the brake cylinder 12.
As shown in fig. 4, a pendulum fixing beam 3 is mounted on the upper surface of the small flange plate through a pendulum fixing beam positioning bolt 19, two parallel connecting plates 6 are fixed in the middle of the lower surface of the pendulum fixing beam 3 through connecting plate mounting bolts 2, two connecting plates 6 are both provided with round holes, bearings 17 are embedded in the round holes, a pendulum rotating shaft 8 is connected between the two connecting plates 6, two ends of the pendulum rotating shaft 8 are respectively mounted in the bearings 17 of the two connecting plates 6, a swing rod 9 is fixedly connected in the middle of the pendulum rotating shaft 8, an impact block 10 is fixed at the bottom end of the swing rod 9, and the pendulum rotating shaft 8 drives the swing rod 9 to swing back and forth by rotating around the bearings 17; one of the connecting plates 6 is provided with a rotary encoder 7, and the center of the end part of a pendulum rotating shaft 8 close to the rotary encoder 7 is provided with a round hole closely connected with a probe of the rotary encoder 7. The rotary encoder 7 is used for measuring the real-time angle change of the pendulum bob 9, and the speed change of the impact block 10 is obtained through numerical differentiation and conversion.
As shown in fig. 5, the angle adjusting plate 4 is mainly composed of a large flange plate, a small flange plate and a circular column connected with the large flange plate and the small flange plate, wherein the inner edge of the large flange plate is connected with the upper end face of the circular column, and the outer edge of the small flange plate is connected with the lower end face of the circular column; the small flange plate is provided with a plurality of flange holes, the through holes at the two ends of the pendulum fixing beam 3 change the angle of the pendulum fixing beam 3 through aligning different flange holes, and the pendulum fixing beam 3 is fixedly connected with the angle adjusting plate 4 through the pendulum fixing beam positioning bolt 19 inserted in the flange holes. The angle adjusting disk fixing bolt 5 slides in the strip-shaped hole under the state of not being screwed down to drive the angle adjusting disk 4 to move back and forth along the length direction of the beam, so that the position of the angle adjusting disk 4 on the loading support 1 is adjusted, and the position of the angle adjusting disk 4 is fixed by screwing the angle adjusting disk fixing bolt 5.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The utility model discloses device striking analogue test's operating method includes following step:
S1: filling a model soil body in the model box 18 and burying a structure model in the model soil body; the loading bracket 1 is placed on the model box 18, and the angle adjusting disc 4 is placed on the loading bracket 1; the impact block 10, the swing rod 9, the pendulum bob rotating shaft 8, the bearing 17, the connecting plate 6 and the rotary encoder 7 are sequentially assembled and connected with the pendulum bob fixing beam 3;
S2: determining the position of the impact head 10 according to the position of the impact point, and adjusting the position of the impact head 10 through the angle adjusting disc 4 and the loading bracket 1;
S3: determining the swinging direction of the impact head 10 according to the test impact angle, and adjusting the swinging direction of the impact head 10 by adjusting the angle position of the pendulum fixing beam 3;
S4: determining the position of the cylinder extension rod 13: before the brake cylinder 12 is started, the brake cylinder actuating rod 11 is contacted with the oscillating rod 9 by adjusting the position of the cylinder extension rod 13;
S5: the pushing cylinder fixing block 15 moves on the horizontal sliding plate, and the swing rod 9 swings upwards under the pushing of the braking cylinder actuating rod 11 until the swing angle of the swing rod 9 reaches the designed initial lifting angle;
S6: and starting a test, placing the whole device in a centrifuge, starting the centrifuge to rotate, and in the test, remotely adjusting the air pressure of the brake cylinder 12 to control the brake cylinder actuating rod 11 to withdraw, so that the impact block 10 impacts the structure model to finish a primary impact test.
Before a test, the brake cylinder actuating rod is controlled to extend to be in contact with a pendulum bob oscillating bar, and the oscillating bar is restrained at a set initial raising angle; in the test, the brake cylinder actuating rod is controlled to retract by changing the air pressure, and the pendulum bob is continuously accelerated under the action of centrifugal force until the pendulum bob collides with a collided object.
a plurality of loading supports 1 can be arranged on the same model box 18, a plurality of impact mechanisms can be arranged on the same loading support 1, multiple times of impact of different positions of the same structure model or independent impact of a plurality of structure models can be realized, and the method has the advantages of flexible configuration and good expandability.
Claims (8)
1. A ship impact centrifugal simulation device is characterized by comprising a loading bracket (1), a pendulum bob motion device, a cylinder motion device and a model box (18); the loading support (1) is arranged on the upper end face of the model box (18), the loading support (1) is a cuboid frame which is mainly defined by four columns, two horizontal sliding plates, two beams and two beam connecting rods, the two horizontal sliding plates are arranged in parallel, the bottoms of the two horizontal sliding plates are respectively arranged on two sides of the model box (18), two ends of the upper surface of each horizontal sliding plate are fixedly connected with two columns which are arranged in parallel, the tops of the two columns at the same end of the two horizontal sliding plates are connected through the beams, and the same end of the two beams is connected through the beam connecting rods; each beam is provided with a strip-shaped hole which vertically penetrates through along the length direction; the upper bottom plate of each horizontal sliding plate is provided with two strip-shaped through holes which are respectively positioned at the two side edges of the horizontal sliding plate along the length direction, and the bottom of the horizontal sliding plate is provided with a sliding chute which is embedded in the wall of the model box (18).
2. A ship impact centrifugation simulation device according to claim 1,
The pendulum bob movement device comprises angle adjusting discs (4), pendulum bob fixed beams (3), connecting plates (6), pendulum bob rotating shafts (8), pendulum rods (9) and impact blocks (10), wherein the angle adjusting discs (4) are arranged on the upper end surfaces of the two beams, the angle adjusting discs (4) mainly comprise large flange discs, small flange discs and circular ring columns connected with the large flange discs and the small flange discs, the inner edges of the large flange discs are connected with the upper end surfaces of the circular ring columns, and the outer edges of the small flange discs are connected with the lower end surfaces of the circular ring columns; two sides of the large flange plate are respectively provided with a plurality of flange holes corresponding to the positions of the strip-shaped holes, and two sides of the large flange plate are respectively arranged on the upper end surfaces of the two beams through angle adjusting plate fixing bolts (5) which sequentially penetrate through the flange holes and the strip-shaped holes; pendulum fixed beam (3) are installed through pendulum fixed beam positioning bolt (19) to the small flange upper surface, be fixed with two parallel arrangement's connecting plate (6) through connecting plate mounting bolt (2) in the middle of pendulum fixed beam (3) lower surface, round hole and round hole are all opened in two connecting plates (6) and are all inlayed and are equipped with bearing (17), be connected with pendulum pivot (8) between two connecting plates (6), install respectively in bearing (17) of two connecting plates (6) pendulum pivot (8) both ends, fixedly connected with pendulum rod (9) in the middle of pendulum pivot (8), pendulum rod (9) bottom mounting has striking piece (10), pendulum pivot (8) are through rotating around bearing (17) and drive pendulum rod (9) swing back and forth.
3. A ship impact centrifugation simulation device according to claim 1,
The cylinder moving device comprises a cylinder fixing block (15), a cylinder extension rod (13), a brake cylinder (12) and a brake cylinder actuating rod (11), wherein the cylinder fixing block (15) sequentially penetrates through a cylinder fixing block (15) bottom plate, a cylinder fixing block positioning bolt (14) of a strip-shaped through hole is installed on the upper surface of one horizontal sliding plate, a round through hole perpendicular to the strip-shaped through hole is formed in the cylinder fixing block (15), the cylinder extension rod (13) is installed in the round through hole in an inserted mode, one end, close to an impact block (10), of the cylinder extension rod (13) is connected with one end of the brake cylinder (12) through threads, the brake cylinder actuating rod (11) is installed at the other end of the brake cylinder (12), and the length direction of the brake cylinder actuating rod (11) is perpendicular to the length direction of.
4. a ship impact centrifugation simulation device according to claim 1,
The device is integrally fixed in a basket of the centrifuge, and a model box (18) is arranged towards one side close to the centrifuge; when the centrifugal machine rotates, the rotating shaft of the centrifugal machine is vertical to the central shaft of the angle adjusting disc (4), and the central shaft of the angle adjusting disc (4) is along the radial direction of the centrifugal machine.
5. A ship impact centrifugation simulator according to claim 1, wherein one of the connection plates (6) is provided with a rotary encoder (7), and a circular hole closely connected with a probe of the rotary encoder (7) is formed in the center of the end of a pendulum rotating shaft (8) close to the rotary encoder (7).
6. The ship impact centrifugal simulation device according to claim 2, wherein the angle adjusting disc fixing bolt (5) slides in the strip-shaped hole in an untightened state to drive the angle adjusting disc (4) to move back and forth along the length direction of the beam, so that the position of the angle adjusting disc (4) on the loading support (1) is adjusted, and the angle adjusting disc (4) is fixed by tightening the angle adjusting disc fixing bolt (5).
7. a ship impact centrifugation simulator according to claim 2, wherein the small flange is provided with a plurality of flange holes, and the through holes at the two ends of the pendulum fixing beam (3) change the angle of the pendulum fixing beam (3) by aligning different flange holes.
8. The ship impact centrifugal simulation device according to claim 3, wherein the cylinder fixing block positioning bolt (14) slides in the strip-shaped through hole under the non-tightened state to drive the cylinder fixing block (15) to move back and forth along the length direction of the horizontal sliding plate, so that the position of the cylinder fixing block (15) on the loading bracket (1) is adjusted; the position of the cylinder fixing block (15) is fixed by screwing the cylinder fixing block positioning bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002684.7U CN209764369U (en) | 2019-01-02 | 2019-01-02 | Ship impact centrifugal simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002684.7U CN209764369U (en) | 2019-01-02 | 2019-01-02 | Ship impact centrifugal simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764369U true CN209764369U (en) | 2019-12-10 |
Family
ID=68748464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920002684.7U Active CN209764369U (en) | 2019-01-02 | 2019-01-02 | Ship impact centrifugal simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209764369U (en) |
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2019
- 2019-01-02 CN CN201920002684.7U patent/CN209764369U/en active Active
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