CN112224354B - Hull structure side load resistance to compression test platform - Google Patents
Hull structure side load resistance to compression test platform Download PDFInfo
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- CN112224354B CN112224354B CN202011162067.7A CN202011162067A CN112224354B CN 112224354 B CN112224354 B CN 112224354B CN 202011162067 A CN202011162067 A CN 202011162067A CN 112224354 B CN112224354 B CN 112224354B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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Abstract
The invention relates to the technical field of hull testing, and discloses a lateral load compression-resistant testing platform of a hull structure, which comprises a hull positioning platform arranged on a foundation, wherein the hull positioning platform comprises a front bearing plate, a rear bearing plate and two parallel side bearing plates; the loading mechanism comprises a loading head and a loading assembly, a concave cavity is arranged at the front end of the loading head, a plurality of ferromagnetic balls are filled in the concave cavity, a magnetic assembly is arranged at the rear end of the loading head, and a floating type limiting mechanism is arranged around the front end of the loading head. The invention has the advantages of stable structure, convenient use, wider load loading range and higher test effect.
Description
Technical Field
The invention relates to the technical field of hull testing, in particular to a hull structure side load compression resistance testing platform.
Background
After the ship is launched, the lateral direction of the ship body is under the action of large water pressure, the draft is different, the lateral direction of the ship body is under different water pressures, and meanwhile, the ship is impacted by billow in the running process, so that the lateral load of the ship body needs to be tested and evaluated when the ship body is designed. However, since the actual ship hull is very large, it is difficult to test the actual ship hull, and at present, the ship hull structure (mainly the hull part) is usually scaled down to make a ship hull sample, as shown in fig. 12, a ship hull 10 is a ship hull sample, and a load compression test is performed on a test area 11 (an area shown by a dotted line in fig. 12) local to the ship hull, and a strain gauge is attached to a side plate of the ship hull, so that a relationship between load and stress is obtained, and further, the relationship between lateral load and stress of the actual ship hull is evaluated. However, the outer side wall of the ship body is usually a curved surface, and convex hulls or concave cavities and the like are also locally arranged on the outer side surfaces of some ship bodies; after the hull launched, whole curved surface can all receive hydraulic effect, and the load is applyed to the hull side direction to the jack that directly adopts now usually, however the head of jack is the point contact with the curved surface, and is very big with the state difference of water pressure effect at the curved surface, and the test effect is unsatisfactory.
In order to better simulate the lateral load acting force of water on a ship body, the Chinese patent publication No. CN206876494U, the publication date of 2018, 1 and 12, discloses a large-span stiffened plate ultimate strength test device under combined load, which comprises a test platform, hydraulic jack systems and measuring devices, wherein the hydraulic jack systems and the measuring devices are positioned at two sides of the test platform, the hydraulic jack systems and the measuring devices comprise a rectangular frame which is enclosed by two long sides and two short sides, and a platform plate which is covered on the rectangular frame, the two long sides and the two short sides are arranged on corresponding slideways on a foundation, a plurality of length-adjustable tension and compression bar mechanisms are fixed on the long sides, the tension and compression bar mechanisms are connected with an extension plate of a stiffened plate test piece to limit vertical displacement in the loading process, so as to realize simple support boundary conditions, an inflatable air bag for applying lateral load of the stiffened plate test piece is arranged above the platform, and a pressure sensor is, the measuring device comprises a dial indicator support frame and a dial indicator hung on the dial indicator support frame. According to the scheme, the deformation of the air bag is attached to the surface (curved surface) of the reinforcing rib plate, so that the acting force of water pressure on the side surface of the reinforcing rib plate is simulated, the acting force of the air bag on the reinforcing rib plate is closer to the acting force of the water pressure, and a more accurate assessment result can be obtained. But the air bag has high sealing requirement and cannot be used once being leaked; and the self pressure-bearing capacity of the air bag is smaller, the air bag can only simulate the static hydraulic load (the static load is smaller) of the ship body, the dynamic large load of the ship body cannot be simulated, when the load is overlarge, the air bag can burst, and the structural stability of the air bag load is poorer.
Disclosure of Invention
In order to solve the problems of the ship body lateral load testing platform in the prior art, the invention provides the ship body structure lateral load compression-resistant testing platform which is stable in structure, convenient to use, wider in load loading range and higher in testing effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ship body structure side load compression resistance test platform comprises a ship body positioning platform arranged on a foundation, wherein the ship body positioning platform comprises a front bearing plate, a rear bearing plate and two parallel side bearing plates, a ship body front bearing seat is fixed at the middle part of the inner side of the front bearing plate, a transverse jack is arranged at the center of the inner side of the rear bearing plate, a ship body rear bearing seat is fixed at the end part of the transverse jack, and a plurality of loading mechanisms are arranged at the inner sides of the side bearing plates; the loading mechanism comprises a loading head and a loading assembly connected with the rear end of the loading head, a cavity is arranged at the front end of the loading head, a plurality of ferromagnetic balls are filled in the cavity, a magnetic assembly used for magnetically attracting the ferromagnetic balls is arranged at the rear end of the loading head, and a floating type limiting mechanism used for limiting the ferromagnetic balls is arranged around the front end of the loading head.
The ship body is arranged in the ship body positioning platform, the front end of the ship body is abutted against the front bearing seat of the ship body, and the rear end of the ship body is pressed by the rear bearing seat of the ship body on the transverse jack, so that the front end and the rear end of the ship body are pressed and positioned; the lateral direction of the ship body is pressed through a plurality of loading mechanisms, a load head at the front end of each loading mechanism presses the lateral curved surface of the ship body, when the load head presses the lateral curved surface of the ship body, a ferromagnetic ball can automatically adapt to the surface of the curved surface and is stably attached to the curved surface, a magnetic assembly is used for positioning the ferromagnetic ball to prevent the ferromagnetic ball from falling off, the load of each loading mechanism is transferred to the lateral curved surface of the ship body through the ferromagnetic body, a plurality of strain gauges are attached to the inner side surface of the ship body to simulate the acting force of water pressure on the ship body, so that the relation between the load and stress is obtained, and the compression resistance and the pressure; the loading mechanism is rigidly loaded with the side plates of the ship body through the plurality of ferromagnetic balls, the ferromagnetic balls can automatically adapt to various curved surface shapes (an inner arc surface, an outer arc surface, a corrugated surface, a local convex table surface, a local concave pit surface and the like) after being pressed, and the loading range is far larger than the air bag loading range, so that the loading mechanism can be suitable for ship body static compression testing and ship body dynamic compression testing, and is strong in universality, good in testing effect and good in overall stability.
Preferably, the floating type limiting mechanism comprises a plurality of limiting rods, a plurality of limiting through holes penetrating through the load head are uniformly distributed on the load head and positioned on the periphery of the concave cavity, the limiting rods penetrate through the limiting through holes in a one-to-one correspondence manner to form sliding connection with the limiting through holes, a connecting sleeve is fixed at the rear end of the load head, the magnetic assembly is arranged in the connecting sleeve, a limiting rod baffle is fixed at the rear end of the connecting sleeve, guide through holes corresponding to the limiting through holes in a one-to-one correspondence manner are formed in the limiting rod baffle, and the rear end of the limiting rod penetrates through the guide through; a limiting convex ring is arranged at the position, located at the rear end of the load head, of the limiting rod, and a pressure spring is sleeved at the position, located between the limiting convex ring and the limiting rod baffle, of the limiting rod; the minimum clearance between two adjacent gag lever posts is less than the diameter of ferromagnetic ball, and the front end of gag lever post surpasss the preceding terminal surface of load head. The limiting rod is connected with the load head in a sliding mode, the end portion of the limiting rod can automatically adapt to the shape of a curved surface, therefore, the ferromagnetic ball is enabled to apply pressure to the side face of the ship body in the loading process, meanwhile, the limiting rod can prevent the ferromagnetic ball from being pressed and falling out from the side direction, and floating type limiting of the ferromagnetic ball is achieved.
Preferably, the front end of each limiting rod is provided with a connecting hole, an elastic steel wire ring is arranged in each connecting hole, and the elastic steel wire rings sequentially penetrate through the connecting holes of all the limiting rods to connect the limiting rods together. The elastic steel wire ring limits the front end of the limiting rod and shares the extrusion force of the ferromagnetic ball on the limiting rod, so that the front end of the limiting rod is prevented from deforming due to stress.
Preferably, the magnetic component is an electromagnet, and the ferromagnetic ball is a steel ball. When the loading mechanism is not in use, the electromagnet is electrified, so that a ferromagnetic ball (steel ball) is magnetically adsorbed in a concave cavity of the loading head, and the steel ball is prevented from falling; in the loading process of the loading mechanism, after the steel ball is in contact with the curved surface for pre-positioning, the electromagnet is powered off, and the steel ball can move more freely in the concave cavity when the load is continuously applied, so that the shape of the curved surface can be better adapted; the ferromagnetic ball adopts steel balls, so that the cost is lower, and the steel balls have high compressive strength and can bear a large load.
Preferably, the loading assembly comprises an oil cylinder assembly and a pressure measuring assembly, the pressure measuring assembly comprises a connecting plate and a pressure sensor, a plurality of guide posts are fixed on the front end face of the connecting plate, the guide posts penetrate through the limiting rod baffle to form sliding connection with the limiting rod baffle, and the pressure sensor is fixed on the front end face of the connecting plate. The pressure measuring assembly is used for detecting the load, and when the load is not loaded, the pressure sensor does not bear pressure due to the fact that the connecting plate is in sliding connection with the limiting rod baffle, and therefore the service life of the pressure sensor is prolonged; in the loading process, the oil cylinder assembly extends, and the bearing surface of the pressure sensor is abutted and bearing with the limiting rod baffle.
Preferably, a spherical hinge is fixed at the rear end of the connecting plate, and the other end of the spherical hinge is fixedly connected with the oil cylinder assembly. The spherical hinge is arranged between the oil cylinder assembly and the pressure measuring assembly, when pressure is applied, the spherical hinge can automatically adjust the action angle between the load head and the side plate of the ship body, as the side plate of the ship body is a curved surface, the curvatures and the angles at different positions are different, an included angle exists between the loading direction of the load head and the normal direction of the curved surface, the included angle can cause the load to be decomposed, and therefore the actual load laterally received by the ship body and the detection value of the pressure sensor have larger difference; in this structure, the setting up of ball pivot makes can automatic adjustment to stable condition (the stable condition after the atress) after the loading of load head, and the axial of load head is unanimous with the normal direction of curved surface under the stable condition to make the actual load that the curved surface bore and pressure sensor's detected value be closer, thereby make the test more accurate.
Preferably, the oil cylinder assembly comprises a front fixing plate, a middle fixing plate and a rear fixing plate, a front oil cylinder is fixed on the front end face of the middle fixing plate, the shaft end of the front oil cylinder is fixed with the rear end face of the front fixing plate, a rear oil cylinder is fixed on the front end face of the rear fixing plate, and the shaft end of the rear oil cylinder is fixedly connected with the rear end face of the middle fixing plate; the front fixing plate is fixedly provided with a plurality of front guide rods, the front guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate, the rear fixing plate is fixedly provided with a plurality of rear guide rods, and the rear guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate. The front oil cylinder and the rear oil cylinder are combined together for loading, so that on one hand, the axial telescopic length of the oil cylinder assembly is prolonged, and meanwhile, the length of a single oil cylinder is reduced, and the lateral (axial vertical direction) bearing performance of the oil cylinder assembly is improved; the front guide rod and the rear guide rod can share the lateral (axial vertical direction) bearing performance of the oil cylinder assembly, and the stability of the oil cylinder assembly is improved.
Preferably, the rear end of the loading mechanism is connected with the side bearing plate through a lifting adjusting mechanism, the lifting adjusting mechanism comprises a sliding rail and a sliding block, baffles are fixed at the upper end and the lower end of the sliding rail, two parallel sliding rods are arranged between the two baffles, the sliding block is arranged on the sliding rod and is in sliding connection with the sliding rod, a screw rod is further arranged between the baffles, the screw rod penetrates through the sliding block to be in threaded connection with the sliding block, and a driving mechanism for driving the screw rod to rotate is further fixed on the baffles. The position of the loading mechanism in the vertical direction can be adjusted through the driving mechanism, so that loading at different heights on the lateral side of the ship body is realized.
Preferably, the driving mechanism comprises a worm gear assembly and a driving motor connected with the input end of the worm; the sliding rail is provided with a U-shaped limiting groove, and the sliding block is provided with a limiting boss in sliding fit with the U-shaped limiting groove. The screw rod is driven to rotate by the driving motor and the worm and gear assembly, so that the sliding block is lifted, and the position of the loading mechanism in the vertical direction is adjusted; the slider passes through spacing boss and U-shaped spacing groove sliding fit, and the vertical compressive property of slider can be shared to spacing boss.
Preferably, the top surface of the side bearing plate is provided with a vertical loading support, a vertical jack is fixed on the vertical loading support, and a pressure block for loading the top surface of the ship body is fixed at the lower end of the vertical jack. The vertical jack is used for positioning and loading the top surface of the ship body.
Therefore, the invention has the advantages of stable structure, convenient use, wider load loading range and higher test effect.
Drawings
Fig. 1 is a schematic view (top view) of the overall structure of the present invention.
Fig. 2 is an isometric view of the loading mechanism.
Fig. 3 is another perspective isometric view of the loading mechanism.
Fig. 4 is an exploded view of fig. 3.
Fig. 5 is a right side view of fig. 2.
Fig. 6 is a top view of fig. 2.
Fig. 7 is a cross-sectional view taken at a-a in fig. 6.
Fig. 8 is a partially enlarged view of the portion B in fig. 7.
Fig. 9 is a schematic view of the connection of the cylinder assembly to the lift mechanism.
Fig. 10 is a schematic view of the connection between the slider and the slide rail.
Fig. 11 is a schematic structural view of the cylinder assembly.
Fig. 12 is a schematic view of the structure of a ship hull.
In the figure: the device comprises a hull positioning platform 1, a front bearing plate 100, a rear bearing plate 101, a side bearing plate 102, a hull front bearing seat 2, a transverse jack 3, a hull rear bearing seat 4, a vertical loading support 5, a vertical jack 6, a pressure block 60, a loading mechanism 7, a load head 70, a cavity 700, a ferromagnetic ball 701, a magnetic component 702, a loading component 71, an oil cylinder component 710, a front fixing plate 7100, a middle fixing plate 7101, a rear fixing plate 7102, a front oil cylinder 7103, a rear oil cylinder 7104, a front guide rod 7105, a rear guide rod 7106, a pressure measuring component 711, a connecting plate 712, a pressure sensor 713, a guide pillar 714, a floating type limiting mechanism 72, a limiting rod 720, a limiting through hole 721, a connecting sleeve 722, a limiting rod baffle 723, a guiding through hole 724, a limiting convex ring 725, a pressure spring 726, a connecting hole 727, an elastic steel wire ring 728, a spherical hinge 8, a lifting adjusting mechanism 9, a slide rail 90, a slide block 91, the device comprises a sliding rod 93, a screw rod 94, a driving mechanism 95, a worm and gear assembly 950, a U-shaped limiting groove 96, a ship body 10 and a test area 11.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, 2, 3, 4 and 5, the ship hull structure side load compression test platform comprises a ship hull positioning platform 1 arranged on a foundation, wherein the ship hull positioning platform 1 comprises a front pressure bearing plate 100, a rear pressure bearing plate 101 and two parallel side pressure bearing plates 102, a ship hull front pressure bearing seat 2 is fixed in the middle of the inner side of the front pressure bearing plate 100, a transverse jack 3 is arranged in the center of the inner side of the rear pressure bearing plate 101, a ship hull rear pressure bearing seat 4 is fixed at the end of the transverse jack 3, a vertical loading support 5 is arranged on the top surface of each side pressure bearing plate 102, a vertical jack 6 is fixed on each vertical loading support, and a pressure block 60 for loading the top surface of a ship hull is fixed at the lower end of each vertical jack 6; the inner side of the pressure bearing side plate 102 is provided with a plurality of loading mechanisms 7.
As shown in fig. 6, 7 and 8, the loading mechanism 7 includes a loading head 70 and a loading assembly 71 connected to the rear end of the loading head, a cavity 700 is provided at the front end of the loading head 7, a plurality of ferromagnetic balls 701 are filled in the cavity 700, a magnetic assembly 702 for magnetically attracting the ferromagnetic balls is provided at the rear end of the loading head 7, a floating type limiting mechanism 72 for limiting the ferromagnetic balls is provided around the front end of the loading head 7, the floating type limiting mechanism 72 includes a plurality of limiting rods 720, a plurality of limiting through holes 721 penetrating through the loading head are uniformly distributed on the periphery of the cavity on the loading head 7, the limiting rods 720 correspondingly penetrate through the limiting through holes 721 to form sliding connection with the limiting through holes, a connecting sleeve 722 is fixed at the rear end of the loading head 7, the magnetic assembly 702 is arranged in the connecting sleeve, a limiting rod baffle 723 is fixed at the rear end of the connecting sleeve 722, guide through holes 724 corresponding to the limiting through holes one to, the rear end of the limiting rod 720 passes through the guide through hole 724; a limiting convex ring 725 is arranged at the position, located at the rear end of the load head, of the limiting rod 720, and a pressure spring 726 is sleeved at the position, located between the limiting convex ring and the limiting rod baffle, of the limiting rod 720; the minimum gap between two adjacent limiting rods is smaller than the diameter of the ferromagnetic ball, the front ends of the limiting rods exceed the front end face of the load head, the front end of each limiting rod 720 is provided with a connecting hole 727, an elastic steel wire ring 728 is arranged in each connecting hole, and the elastic steel wire rings sequentially penetrate through the connecting holes of all the limiting rods to connect the limiting rods together; in this embodiment, the magnetic component 702 is an electromagnet, and the ferromagnetic ball 701 is a steel ball.
As shown in fig. 6 and 7, the loading assembly 71 includes a cylinder assembly 710 and a load cell assembly 711, the load cell assembly 711 includes a connecting plate 712 and a pressure sensor 713, a plurality of guide posts 714 are fixed on a front end surface of the connecting plate 712, the guide posts penetrate through the stop lever baffle to form a sliding connection with the stop lever baffle, and the pressure sensor 713 is fixed on the front end surface of the connecting plate; the rear end of the connecting plate 712 is fixed with a spherical hinge 8, and the other end of the spherical hinge 8 is fixedly connected with the cylinder assembly 710.
As shown in fig. 9, 10, and 11, the cylinder assembly 710 includes a front fixing plate 7100, a middle fixing plate 7101, and a rear fixing plate 7102, a front cylinder 7103 is fixed on a front end surface of the middle fixing plate 7101, a shaft end of the front cylinder 7103 is fixed to a rear end surface of the front fixing plate, a rear cylinder 7104 is fixed on a front end surface of the rear fixing plate 7102, and a shaft end of the rear cylinder is fixedly connected to a rear end surface of the middle fixing plate; a plurality of front guide rods 7105 are fixed on the front fixing plate 7100, the front guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate, a plurality of rear guide rods 7106 are fixed on the rear fixing plate 7102, and the rear guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate.
As shown in fig. 7 and 9, the rear end of the loading mechanism 7 is connected to the side bearing plate through a lifting adjusting mechanism 9, the lifting adjusting mechanism 9 includes a slide rail 90 and a slide block 91, the upper and lower ends of the slide rail are both fixed with a baffle 92, two parallel slide bars 93 are arranged between the two baffles, the slide block is arranged on the slide bar and is connected with the slide bar in a sliding manner, a screw 94 is further arranged between the baffles, the screw passes through the slide block and is connected with the slide block in a threaded manner, and a driving mechanism 95 for driving the screw to rotate is further fixed on the baffle 92; the driving mechanism 95 includes a worm and gear assembly and a driving motor (not shown) connected to the input end of the worm; the slide rail 90 is provided with a U-shaped limiting groove 96, and the slide block 91 is provided with a limiting boss 910 which is in sliding fit with the U-shaped limiting groove.
The principle of the invention is as follows with reference to the attached drawings: the ship body 10 is arranged in a ship body positioning platform in a state shown in figure 1, the front end of the ship body is abutted against a front bearing seat of the ship body, the rear end of the ship body is compressed by a rear bearing seat of the ship body on a transverse jack, so that the front end and the rear end of the ship body are compressed and positioned, and the top surface of the ship body is compressed and positioned by a vertical jack and a pressure block; the lateral direction of the ship body is pressed through a plurality of loading mechanisms, a load head at the front end of each loading mechanism is pressed on a lateral curved surface (the position of the curved surface is shown as a test area 11 in a figure 12) of the ship body, when the load head presses the lateral curved surface of the ship body, steel balls can automatically adapt to the surface of the curved surface and are stably attached to the curved surface, a magnetic assembly is used for positioning ferromagnetic balls to prevent the ferromagnetic balls from falling off, the load of each loading mechanism is transmitted to the lateral curved surface of the ship body through the ferromagnetic bodies, a plurality of strain gauges are attached to the inner side surface of the ship body to simulate the acting force of the ship body on water pressure, a pressure sensor in each loading mechanism can accurately detect the pressure, and the strain gauges can detect local stress, so that the relation between the load (pressure) and the stress; the loading mechanism is rigidly loaded with the side plates of the ship body through the plurality of ferromagnetic balls, the ferromagnetic balls can automatically adapt to various curved surface shapes (an inner arc surface, an outer arc surface, a corrugated surface, a local convex table surface, a local concave pit surface and the like) after being pressed, and the loading range is far larger than the air bag loading range, so that the loading mechanism can be suitable for ship body static compression testing and ship body dynamic compression testing, and is strong in universality, good in testing effect and good in overall stability.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (10)
1. A ship body structure side load compression resistance test platform comprises a ship body positioning platform arranged on a foundation, and is characterized in that the ship body positioning platform comprises a front bearing plate, a rear bearing plate and two parallel side bearing plates, a ship body front bearing seat is fixed at the middle part of the inner side of the front bearing plate, a transverse jack is arranged at the center of the inner side of the rear bearing plate, a ship body rear bearing seat is fixed at the end part of the transverse jack, and a plurality of loading mechanisms are arranged at the inner side of the side bearing plates; the loading mechanism comprises a loading head and a loading assembly connected with the rear end of the loading head, a cavity is arranged at the front end of the loading head, a plurality of ferromagnetic balls are filled in the cavity, a magnetic assembly for magnetically attracting the ferromagnetic balls is arranged at the rear end of the loading head, and a floating type limiting mechanism for limiting the ferromagnetic balls is arranged around the front end of the loading head.
2. The platform of claim 1, wherein the floating limiting mechanism comprises a plurality of limiting rods, a plurality of limiting through holes penetrating through the load head are uniformly distributed on the load head at the periphery of the concave cavity, the limiting rods penetrate through the limiting through holes in a one-to-one correspondence manner to form sliding connection with the limiting through holes, a connecting sleeve is fixed at the rear end of the load head, the magnetic assembly is arranged in the connecting sleeve, a limiting rod baffle is fixed at the rear end of the connecting sleeve, guide through holes corresponding to the limiting through holes in a one-to-one correspondence manner are arranged on the limiting rod baffle, and the rear end of the limiting rod penetrates through the guide through holes; a limiting convex ring is arranged at the position, located at the rear end of the load head, of the limiting rod, and a pressure spring is sleeved at the position, located between the limiting convex ring and the limiting rod baffle, of the limiting rod; the minimum clearance between two adjacent gag lever posts is less than the diameter of ferromagnetic ball, and the front end of gag lever post surpasss the preceding terminal surface of load head.
3. The platform of claim 2, wherein the front end of each of the stop rods is provided with a connecting hole, and an elastic wire ring is arranged in the connecting hole and sequentially penetrates through the connecting holes of all the stop rods to connect the stop rods together.
4. The platform of claim 1, 2 or 3 for testing the lateral load compression resistance of a ship hull structure, wherein the magnetic component is an electromagnet and the ferromagnetic balls are steel balls.
5. The platform of claim 2, wherein the loading assembly comprises a cylinder assembly and a load cell assembly, the load cell assembly comprises a connecting plate and a pressure sensor, a plurality of guide posts are fixed on the front end surface of the connecting plate, the guide posts penetrate through the stop lever to form sliding connection with the stop lever, and the pressure sensor is fixed on the front end surface of the connecting plate.
6. The platform of claim 5, wherein a ball joint is fixed to the rear end of the connecting plate, and the other end of the ball joint is fixedly connected to the cylinder assembly.
7. The ship hull structure side load compression test platform according to claim 5 or 6, wherein the oil cylinder assembly comprises a front fixing plate, a middle fixing plate and a rear fixing plate, a front oil cylinder is fixed on the front end surface of the middle fixing plate, the shaft end of the front oil cylinder is fixed with the rear end surface of the front fixing plate, a rear oil cylinder is fixed on the front end surface of the rear fixing plate, and the shaft end of the rear oil cylinder is fixedly connected with the rear end surface of the middle fixing plate; the front fixing plate is fixedly provided with a plurality of front guide rods, the front guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate, the rear fixing plate is fixedly provided with a plurality of rear guide rods, and the rear guide rods penetrate through the middle fixing plate and are in sliding connection with the middle fixing plate.
8. The platform of claim 1, wherein the rear end of the loading mechanism is connected to the side bearing plate through a lifting adjusting mechanism, the lifting adjusting mechanism comprises a slide rail and a slide block, the upper end and the lower end of the slide rail are both fixed with a baffle, two parallel slide bars are arranged between the two baffles, the slide block is arranged on the slide bar and is slidably connected with the slide bar, a screw rod is arranged between the baffles, the screw rod passes through the slide block and is in threaded connection with the slide block, and a driving mechanism for driving the screw rod to rotate is further fixed on the baffles.
9. The platform of claim 8, wherein the drive mechanism comprises a worm and gear assembly, a drive motor connected to an input end of the worm; the sliding rail is provided with a U-shaped limiting groove, and the sliding block is provided with a limiting boss in sliding fit with the U-shaped limiting groove.
10. The ship hull structure side load compression test platform of claim 1, wherein the top surface of the side bearing plate is provided with a vertical loading support, a vertical jack is fixed on the vertical loading support, and a pressure block for loading the top surface of the ship hull is fixed at the lower end of the vertical jack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011162067.7A CN112224354B (en) | 2020-10-27 | 2020-10-27 | Hull structure side load resistance to compression test platform |
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| CN202011162067.7A CN112224354B (en) | 2020-10-27 | 2020-10-27 | Hull structure side load resistance to compression test platform |
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| CN112224354B true CN112224354B (en) | 2021-06-15 |
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| CN101699247B (en) * | 2009-11-10 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Comprehensive test bed for automobile body |
| CN104458292B (en) * | 2014-12-10 | 2016-11-23 | 长春轨道客车股份有限公司 | Static strength load secondary load device for the test of body end portion accident |
| CN204855071U (en) * | 2015-08-24 | 2015-12-09 | 哈尔滨工程大学 | Portable hull eye plate tensile testing device |
| CN108896391B (en) * | 2018-04-28 | 2020-10-02 | 中北大学 | Simulation device for stress process and load transfer mechanism of equivalent horizontal load-bearing pile |
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