Deep sea cable fatigue test apparatus with sensors

Abstract

The present application relates to the technical field of test device, especially to a deep-sea cable fatigue test device with a sensor. The technical scheme comprises a foundation platform, a seawater environment simulation system, a cable fixing system, a lateral force loading system, a cable tension control and adjustment system and a data acquisition and analysis system. The systems are cooperated to realize the accelerated wear and fatigue test of the deep-sea cable. The present application realizes the fatigue and wear test of the deep-sea cable under different environments and different loads, can comprehensively examine the durability and safety of the cable, provides reliable test equipment support for the research, production and quality detection of the deep-sea cable, and helps to improve the safety and reliability of the deep-sea exploration equipment and underwater weapon equipment.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a deep-sea cable fatigue testing device with sensors. Background Technology

[0002] As marine development and utilization continue to expand into the deep sea, protecting the rights and interests of the three-dimensional marine space has placed new demands on the development of underwater weaponry. With the rapid development of intelligent and information-based technologies, underwater pre-positioned systems, as a new type of underwater offensive and defensive weaponry, involve the pre-positioning of combat equipment such as drones, missiles, and torpedoes in sensitive sea areas such as the continental shelf and island chains for extended periods. Once activated remotely, these systems can perform reconnaissance, strike, and route blockade missions. This system integrates resources from land, sea, air, space, and underwater according to operational missions, leveraging its overall advantages to seize future underwater battlefield space.

[0003] During the deployment and recovery of deep-sea pre-positioned weapons or deep-sea exploration equipment, the cables must not only withstand the high-pressure environment of the deep sea, but also cope with complex dynamic and static loads, such as equipment weight, instantaneous impact loads, and the wave motion of the mother ship. Insufficient tensile strength or stiffness of the cables can lead to equipment damage or even loss, severely impacting exploration missions. Therefore, studying the static and dynamic mechanical properties of deployment and recovery cables in simulated deep-sea environments is crucial for ensuring the safety and reliability of deep-sea exploration equipment. In the complex marine environment, cables must withstand the combined effects of continuous seawater corrosion, ultraviolet radiation, mechanical wear, and biofouling, making them highly susceptible to problems such as strength reduction, changes in elongation at break, and surface damage, seriously affecting their service life and the safety of the weapons and equipment.

[0004] Deep-sea cable wear tests can evaluate the abrasion resistance of cables under repeated friction. By testing the number of wear cycles and the retention rate of fracture strength after a specified number of wear cycles, the durability and safety of the cable in actual use can be assessed. However, current wear test loads or external environments for assessing cable durability are relatively simple, mostly conducted in a standard atmospheric environment. A certain frequency and number of wear cycles are applied to the cable through an actuator. Under this environment, the heat generated by the wear between the cable and the bearing cannot be transferred to the atmosphere in time. During the test, the cable temperature rises continuously, and the surface temperature of the cable can reach 70-80 degrees Celsius under prolonged wear. This can cause the adhesive inside some composite cables to melt, leading to prolonged test cycles or test failure. Furthermore, it cannot assess the impact of real environmental conditions such as pressure, salinity, and temperature experienced by the cable in the deep sea. This test system can ensure that the cable is subjected to the combined effects of salinity and seawater temperature during the wear process. Therefore, this application proposes a deep-sea cable fatigue testing device with sensors. Summary of the Invention

[0005] The purpose of this invention is to address the problems of limited environmental simulation and inaccurate parameter measurement in the prior art by proposing a deep-sea cable fatigue testing device with sensors.

[0006] The technical solution of the present invention is a deep-sea cable fatigue testing device with sensors, including a ground foundation platform and a seawater environment simulation system, a cable fixing system, a lateral force loading system, a cable tension control and adjustment system, and a data acquisition and analysis system built on it. The various systems work together to realize the accelerated wear fatigue test of the deep-sea cable.

[0007] Optionally, the seawater environment simulation system includes a seawater storage tank, heating wire, semiconductor cooling chip, semiconductor cooling chip assembly heat sink, temperature sensor, temperature measurement control cabinet, temperature measurement cable and power supply cable. The seawater storage tank is fixedly installed on the foundation platform, and the two are sealed with foam adhesive. It is used to store seawater with different salinities.

[0008] Optionally, the heating wire, the thermoelectric cooler, and the heat sink of the thermoelectric cooler assembly are all fixed on the seawater storage tank. The temperature sensor is connected to the temperature measurement control cabinet via a temperature measurement cable. The heating wire and the thermoelectric cooler are connected to a power supply via a power supply cable, working together to achieve precise control of the seawater temperature.

[0009] Optionally, the cable fixing system includes a left vertical bearing beam, a middle vertical bearing beam, a right vertical bearing beam, a left steering pulley, a right steering pulley, an upper left steering pulley, an upper right steering pulley, a first U-shaped buckle, a first heart-shaped ring, and a first triangular beam. The left vertical bearing beam, the middle vertical bearing beam, and the right vertical bearing beam are fixedly installed on the foundation platform to form the system's load-bearing frame. A third triangular beam and a fourth triangular beam are fixedly installed on the right vertical bearing beam. The third triangular beam is fixedly connected to the upper left steering pulley, and the fourth triangular beam is fixedly connected to the upper right steering pulley.

[0010] Optionally, the left side of the deep-sea cable is fixedly installed on the first triangular beam by the first U-shaped buckle and the first heart-shaped ring, and then turns sequentially through the left steering pulley, the right steering pulley, the upper left steering pulley and the upper right steering pulley, so as to realize the fixation and attitude change of the deep-sea cable in the seawater storage tank.

[0011] Optionally, the lateral force loading system includes an actuator, a loading shaft, a pressure roller, a lateral force loading nylon wheel, a lateral force loading measuring force sensor, and a second triangular beam. The actuator is fixedly installed on the middle vertical bearing beam via the second triangular beam, and the lateral force loading measuring force sensor is connected in series between the loading shaft and the actuator.

[0012] Optionally, the lateral force loading measurement force sensor collects lateral force data between the deep-sea cable and the pressure roller in real time. By adjusting the loading frequency and amplitude of the actuator, cable wear under different acceleration ratio coefficients can be achieved.

[0013] Optionally, the cable tension control and adjustment system includes a cable tension test sensor, an auxiliary cable, a simulated load, a lifting chain, a hook, a second U-shaped buckle, and a second heart-shaped ring. The cable tension test sensor connects the deep-sea cable and the auxiliary cable, and the auxiliary cable is connected to the simulated load through the second U-shaped buckle and the second heart-shaped ring.

[0014] Optionally, the lifting chain and hook are driven by a gantry crane, which can adjust the suspension state of the simulated load and use data feedback from cable tension test sensors to achieve precise control and adjustment of the tension of the deep-sea cable.

[0015] Optionally, the data acquisition and analysis system is connected to the lateral force loading measurement force sensor, the cable tension test sensor, and the temperature sensor to collect, store, and analyze test data such as lateral force, cable tension, and seawater temperature.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This invention integrates a seawater environment simulation system, which can provide seawater with different salinities through a seawater storage tank and achieve precise control of seawater temperature through a combination of heating wires and semiconductor cooling chips. It can more realistically simulate the complex seawater environment in which deep-sea cables are located, and solves the problem of the single environmental simulation of traditional test devices.

[0017] Furthermore, the device integrates multiple sensors, including a lateral force loading measurement sensor, a cable tension testing sensor, and a temperature sensor, which can collect key parameters such as lateral force, cable tension, and seawater temperature in real time and accurately during the test, ensuring the accuracy of the test data.

[0018] This invention enables fatigue wear testing of deep-sea cables under different environmental and load conditions, comprehensively assessing the durability and safety of the cables. It provides reliable testing equipment support for the research, development, production, and quality inspection of deep-sea cables, and helps improve the safety and reliability of deep-sea exploration equipment and underwater weapons. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a deep-sea cable fatigue testing device equipped with sensors.

[0020] Reference numerals: 1. Deep-sea cable; 2. Pressure roller; 3. Actuator; 4. Loading shaft; 5. Lateral force loading nylon wheel; 6. Left steering pulley; 7. Right steering pulley; 8. Upper left steering pulley; 9. Upper right steering pulley; 10. First heart-shaped ring; 11. Second heart-shaped ring; 12. Simulated load; 13. Lifting chain; 14. Second U-shaped buckle; 15. First U-shaped buckle; 16. Hook; 17. Temperature measurement and control cabinet; 18. Temperature sensor; 19. Loading... 20. Hot wire; 21. Semiconductor cooling chip; 22. Semiconductor cooling chip assembly heat sink; 23. Seawater storage tank; 24. Lateral force loading measurement force sensor; 25. Left vertical bearing beam; 26. First triangular beam; 27. Middle vertical bearing beam; 28. Second triangular beam; 29. ​​Right vertical bearing beam; 30. Third triangular beam; 31. Fourth triangular beam; 32. Foundation platform; 33. Temperature measurement cable; 34. Power supply cable; 35. Cable tension test sensor. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example 1 like Figure 1 As shown, the present invention proposes a deep-sea cable fatigue testing device with sensors, including a foundation platform 31 and a seawater environment simulation system, a cable fixing system, a lateral force loading system, a cable tension control and adjustment system, and a data acquisition and analysis system built on it. The various systems work together to achieve accelerated wear fatigue testing of deep-sea cables.

[0028] The seawater environment simulation system includes a seawater storage tank 22, a heating wire 19, a semiconductor cooling chip 20, a semiconductor cooling chip assembly heat sink 21, a temperature sensor 18, a temperature measurement control cabinet 17, a temperature measurement cable 32, and a power supply cable 33. The seawater storage tank 22 is fixedly installed on the foundation platform 31, and the two are sealed with foam to prevent seawater leakage. It is used to store seawater with different salinities.

[0029] The heating wire 19, the thermoelectric cooler 20, and the heat sink 21 of the thermoelectric cooler assembly are all fixed on the seawater storage tank 22. The temperature sensor 18 is connected to the temperature measurement control cabinet 17 through the temperature measurement cable 32. The heating wire 19 and the thermoelectric cooler 20 are connected to the power supply through the power supply cable 33, forming a seawater environment simulation system to achieve precise control of seawater temperature.

[0030] Example 2 like Figure 1As shown, the cable fixing system includes a left vertical bearing beam 24, a middle vertical bearing beam 26, a right vertical bearing beam 28, a left steering pulley 6, a right steering pulley 7, an upper left steering pulley 8, an upper right steering pulley 9, a first U-shaped buckle 15, a first heart-shaped ring 10, and a first triangular beam 25. The left vertical bearing beam 24, the middle vertical bearing beam 26, and the right vertical bearing beam 28 are fixedly installed on the foundation platform 31 to form the system's load-bearing frame. The right vertical bearing beam 28 is fixedly installed with a third triangular beam 29 and a fourth triangular beam 30. The third triangular beam 29 is fixedly connected to the upper left steering pulley 8, and the fourth triangular beam 30 is fixedly connected to the upper right steering pulley 9.

[0031] The deep-sea cable 1 is fixedly installed on the first triangular beam 25 on the left side by the first U-shaped buckle 15 and the first heart-shaped ring 10. It is turned in sequence by the left steering pulley 6, the right steering pulley 7, the upper left steering pulley 8 and the upper right steering pulley 9, so as to realize the fixation and attitude change of the deep-sea cable 1 in the seawater storage tank 22.

[0032] Example 3 like Figure 1 As shown, the lateral force loading system includes an actuator 3, a loading shaft 4, a pressure roller 2, a lateral force loading nylon wheel 5, a lateral force loading measuring force sensor 23, and a second triangular beam 27. The actuator 3 is fixedly installed on the middle vertical bearing beam 26 through the second triangular beam 27. The lateral force loading measuring force sensor 23 is connected in series between the loading shaft 4 and the actuator 3. The lateral force loading measuring force sensor 23 collects the lateral force data between the deep-sea cable 1 and the pressure roller 2 in real time. By adjusting the loading frequency and amplitude of the actuator 3, cable wear under different acceleration ratio coefficients can be achieved.

[0033] The cable tension control and adjustment system includes a cable tension test sensor 34, an auxiliary cable, a simulated load 12, a lifting chain 13, a hook 16, a second U-shaped buckle 14, and a second heart-shaped ring 11. The cable tension test sensor 34 connects the deep-sea cable 1 to the auxiliary cable, and the auxiliary cable is connected to the simulated load 12 through the second U-shaped buckle 14 and the second heart-shaped ring 11.

[0034] The lifting chain 13 and hook 16 are driven by a gantry crane, which can adjust the suspension state of the simulated load 12. Data is fed back by the cable tension test sensor 34 to achieve precise control and adjustment of the tension of the deep-sea cable 1.

[0035] The data acquisition and analysis system is connected to the lateral force loading measurement force sensor 23, the cable tension test sensor 34, and the temperature sensor 18 to collect, store, and analyze test data such as lateral force, cable tension, and seawater temperature.

[0036] During the experiment, seawater with the appropriate salinity was first prepared in the seawater storage tank 22 according to the experimental requirements. The target seawater temperature was set through the temperature measurement control cabinet 17. The temperature sensor 18 collected the seawater temperature data in real time and fed it back to the temperature measurement control cabinet 17. The temperature measurement control cabinet 17 automatically controlled the heating wire 19 and the semiconductor cooling chip 20 to work, adjust the seawater temperature to the target value and keep it stable.

[0037] Then, the height and weight of the simulated load 12 are adjusted by the gantry crane, and the tension of the deep-sea cable 1 is monitored by the cable tension test sensor 34 until the required tension value for the test is reached and fixed.

[0038] Actuator 3 is started, and the loading frequency and amplitude are set. Actuator 3 applies lateral force to deep-sea cable 1 through loading shaft 4 and pressure roller 2. Lateral force loading measurement force sensor 23 collects lateral force data in real time, cable tension test sensor 34 continuously monitors cable tension changes, and temperature sensor 18 continuously monitors seawater temperature. All data are transmitted to the data acquisition and analysis system for processing and analysis.

[0039] During the test, the loading parameters of actuator 3, the weight of simulated load 12, and the salinity and temperature of seawater can be adjusted as needed to simulate cable fatigue wear under different deep-sea environments and working conditions.

[0040] Working principle: During the experiment, seawater with the appropriate salinity is first prepared in the seawater storage tank 22 according to the experimental requirements. The target seawater temperature is set through the temperature measurement control cabinet 17. The temperature sensor 18 collects the seawater temperature data in real time and feeds it back to the temperature measurement control cabinet 17. The temperature measurement control cabinet 17 automatically controls the heating wire 19 and the semiconductor cooling chip 20 to adjust the seawater temperature to the target value and keep it stable. Then, the height and weight of the simulated load 12 are adjusted by the gantry crane, and the tension of the deep-sea cable 1 is monitored by the cable tension test sensor 34 until the required tension value for the experiment is reached and fixed. The actuator 3 is started, and the loading frequency and amplitude are set. The actuator 3 applies lateral force to the deep-sea cable 1 through the loading shaft 4 and the pressure roller 2. The lateral force loading measurement force sensor 23 collects lateral force data in real time, the cable tension test sensor 34 continuously monitors the cable tension change, and the temperature sensor 18 continuously monitors the seawater temperature. All data are transmitted to the data acquisition and analysis system for processing and analysis. During the test, the loading parameters of the actuator 3, the weight of the simulated load 12, and the salinity and temperature of the seawater can be adjusted as needed to simulate the cable fatigue wear under different deep-sea environments and working conditions.

[0041] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A deep-sea cable fatigue testing device with sensors, characterized in that, It includes a foundation platform (31) and a seawater environment simulation system, a cable fixing system, a lateral force loading system, a cable tension control and adjustment system, and a data acquisition and analysis system built on it. All systems work together to achieve accelerated wear fatigue test of deep-sea cables.

2. The deep-sea cable fatigue testing device with sensor according to claim 1, characterized in that, The seawater environment simulation system includes a seawater storage tank (22), a heating wire (19), a semiconductor cooling chip (20), a semiconductor cooling chip assembly heat sink (21), a temperature sensor (18), a temperature measurement control cabinet (17), a temperature measurement cable (32), and a power supply cable (33). The seawater storage tank (22) is fixedly installed on the foundation platform (31), and the two are sealed with foam adhesive to store seawater with different salinities.

3. The deep-sea cable fatigue testing device with sensors according to claim 2, characterized in that, The heating wire (19), the semiconductor cooling chip (20), and the heat sink (21) of the semiconductor cooling chip assembly are all fixed on the seawater storage tank (22). The temperature sensor (18) is connected to the temperature measurement control cabinet (17) through the temperature measurement cable (32). The heating wire (19) and the semiconductor cooling chip (20) are connected to the power supply through the power supply cable (33) to achieve precise control of seawater temperature.

4. The deep-sea cable fatigue testing device with sensor according to claim 1, characterized in that, The cable fixing system includes a left vertical bearing beam (24), a middle vertical bearing beam (26), a right vertical bearing beam (28), a left steering pulley (6), a right steering pulley (7), an upper left steering pulley (8), an upper right steering pulley (9), a first U-shaped buckle (15), a first heart-shaped ring (10), and a first triangular beam (25). The left vertical bearing beam (24), the middle vertical bearing beam (26), and the right vertical bearing beam (28) are fixedly installed on the foundation platform (31) to form the system load-bearing frame. The right vertical bearing beam (28) is fixedly installed on the third triangular beam (29) and the fourth triangular beam (30). The third triangular beam (29) is fixedly connected to the upper left steering pulley (8), and the fourth triangular beam (30) is fixedly connected to the upper right steering pulley (9).

5. The deep-sea cable fatigue testing device with sensor according to claim 4, characterized in that, The deep-sea cable (1) is fixedly installed on the first triangular beam (25) on the left side by the first U-shaped buckle (15) and the first heart-shaped ring (10). It is turned in sequence by the left steering pulley (6), the right steering pulley (7), the upper left steering pulley (8) and the upper right steering pulley (9), so as to realize the fixation and attitude change of the deep-sea cable (1) in the seawater storage tank (22).

6. The deep-sea cable fatigue testing device with sensor according to claim 1, characterized in that, The lateral force loading system includes an actuator (3), a loading shaft (4), a pressure roller (2), a lateral force loading nylon wheel (5), a lateral force loading measuring force sensor (23), and a second triangular beam (27). The actuator (3) is fixedly installed on the middle vertical bearing beam (26) through the second triangular beam (27), and the lateral force loading measuring force sensor (23) is connected in series between the loading shaft (4) and the actuator (3).

7. The deep-sea cable fatigue testing device with sensor according to claim 6, characterized in that, The lateral force loading measurement force sensor (23) collects the lateral force data between the deep-sea cable (1) and the pressure roller (2) in real time. By adjusting the loading frequency and amplitude of the actuator (3), cable wear under different acceleration ratio coefficients can be achieved.

8. The deep-sea cable fatigue testing device with sensor according to claim 1, characterized in that, The cable tension control and adjustment system includes a cable tension test sensor (34), an auxiliary cable, a simulated load (12), a lifting chain (13), a hook (16), a second U-shaped buckle (14), and a second heart-shaped ring (11). The cable tension test sensor (34) connects the deep-sea cable (1) to the auxiliary cable. The auxiliary cable is connected to the simulated load (12) through the second U-shaped buckle (14) and the second heart-shaped ring (11).

9. A deep-sea cable fatigue testing device with a sensor according to claim 8, characterized in that, The lifting chain (13) and hook (16) are driven by a gantry crane, which can adjust the suspension state of the simulated load (12). The cable tension test sensor (34) provides feedback data to achieve precise control and adjustment of the tension of the deep-sea cable (1).

10. The deep-sea cable fatigue testing device with sensor according to claim 1, characterized in that, The data acquisition and analysis system is connected to the lateral force loading measurement force sensor (23), the cable tension test sensor (34), and the temperature sensor (18) to collect, store, and analyze test data such as lateral force, cable tension, and seawater temperature.

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