A simulation testing device for shipborne equipment
By introducing a six-degree-of-freedom platform, salt spray test chamber, light simulation unit, and environmental wind simulation unit into the simulation test device, the problem that existing technologies cannot fully simulate the marine environment of ships has been solved, and more accurate equipment life assessment has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG OCEAN UNIV
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
Existing simulation testing devices cannot effectively simulate the complex conditions of ships in the marine environment, including the coupling effects of factors such as vibration, salt spray, light, and high temperature and humidity, resulting in inaccurate predictions of the service life of electronic and electrical equipment.
A six-degree-of-freedom platform was used to simulate ship swaying. Combined with a salt spray test chamber and a light simulation unit, an environmental wind simulation unit and a vibration platform were added to construct a comprehensive test system covering mechanical dynamic loads and temperature, humidity and salt spray coupling.
This improves the reliability of simulation experiments, enabling more realistic simulation of actual conditions of ships in the marine environment and increasing the accuracy of life assessment of electronic and electrical equipment.
Smart Images
Figure CN224287041U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic and electrical equipment testing technology, specifically to a simulation testing device for shipborne equipment. Background Technology
[0002] In marine climate operations, the operating environment of electronic and electrical equipment is complex and diverse. Conditions such as high temperature, high humidity, and high salt spray can accelerate the propagation of fatigue cracks and coating peeling in metal components, and further promote the penetration of salt spray particles into microscopic defects, inducing localized galvanic corrosion. Existing technologies generally use simulation testing devices to simulate the above-mentioned high temperature, high humidity, and high salt spray environments, so as to test the service life of electronic and electrical equipment in the laboratory and determine whether it meets the usage requirements.
[0003] Existing simulation testing devices typically only simulate environmental conditions such as high salt spray and high temperature and humidity. However, real marine climates also include environmental conditions such as ship swaying, sea breeze, and sunlight. Furthermore, electronic and electrical equipment operates under vibration conditions. These environmental conditions and vibrations not only affect the lifespan of electronic and electrical equipment but also create a coupling effect with high salt spray and high temperature and humidity conditions, exacerbating the risk of equipment failure. Therefore, constructing a comprehensive testing system encompassing mechanical dynamic loads and the coupling of temperature, humidity, and salt spray has become a key technological requirement for accurately predicting the environmental adaptability of electronic and electrical equipment. Utility Model Content
[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a simulation testing apparatus for shipborne equipment.
[0005] To achieve the above objectives, this application adopts the following technical solution: a simulation testing device for shipborne equipment, the simulation testing device including a test chamber, the simulation testing device further including a six-degree-of-freedom platform, a salt spray test machine and a light simulation unit, the test chamber being disposed on the six-degree-of-freedom platform, the salt spray test machine being connected to the test chamber and conveying the generated salt spray into the test chamber, and the light simulation unit being disposed inside the test chamber.
[0006] The application of this application has the following beneficial effects: By setting up a six-degree-of-freedom platform, the motion of a ship along six degrees of freedom during its voyage at sea can be simulated, thereby simulating the low-frequency inertial impact of ship swaying on electronic and electrical equipment, thus increasing the reliability of the simulation experiment. By setting up a salt spray test chamber, salt spray can be delivered into the test chamber to simulate the salt spray environment that a ship encounters at sea. By setting up a light simulation unit, the illumination conditions that a ship encounters at sea can be simulated. Studies have shown that light can accelerate the evaporation and condensation of salt spray on the surface of metal devices through radiation, thereby rapidly and significantly increasing the chloride ion concentration on the surface of the metal devices, which will accelerate the corrosion of the metal device surface by the salt spray. Therefore, adding a light simulation unit while setting up a salt spray test chamber can simulate the light-salt spray coupling effect experienced by a ship during actual navigation, increasing the reliability of the simulation experiment.
[0007] Optionally, the illumination simulation unit includes a housing, a full-spectrum LED array, and a light-transmitting protective plate. The housing has an open cavity, the full-spectrum LED array is disposed within the cavity, and the light-transmitting protective plate is disposed on the housing and closes the open cavity.
[0008] Optionally, the bottom of the test chamber is provided with a connecting flange, and the test chamber is fixedly installed on the six-degree-of-freedom platform through the connecting flange.
[0009] Optionally, the simulation testing device further includes an environmental wind simulation unit, which includes a blowing device. The test box is provided with an air inlet and an air outlet, and the blowing device is located at the air inlet.
[0010] Optionally, the simulation testing device further includes a vibration platform, which is set inside the test chamber.
[0011] Optionally, the test chamber is a cuboid, the illumination simulation unit is disposed on the top wall of the test chamber, the vibration platform is disposed on the bottom wall of the test chamber, and the air inlet and air outlet are respectively disposed on opposite side walls of the test chamber.
[0012] Optionally, the blowing device is provided in multiple sets, and the multiple sets of blowing devices are arranged at the same height. The number of air inlets and air outlets are the same as the number of blowing devices and are set accordingly.
[0013] Optionally, the salt spray test chamber is equipped with multiple delivery pipes for conveying salt spray into the test chamber. The multiple delivery pipes extend from the bottom wall of the test chamber into the test chamber, and the ports of the delivery pipes are not higher than the air inlet.
[0014] Optionally, the simulation testing device further includes a control unit, wherein the six-degree-of-freedom platform, salt spray test chamber, light simulation unit, environmental wind simulation unit, and vibration platform are all electrically connected to the control unit and operate under its control.
[0015] Optionally, the simulation testing device further includes a temperature and humidity sensor, a salt spray concentration meter, and an acceleration sensor disposed in the test chamber. The temperature and humidity sensor, the salt spray concentration meter, and the acceleration sensor are all electrically connected to the control unit and are used to transmit detection data to the control unit.
[0016] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description
[0017] The following description, in conjunction with the accompanying drawings, further illustrates this application:
[0018] Figure 1 This is a schematic diagram of the structure of a simulation testing device for shipborne equipment provided in an embodiment of this application.
[0019] The components include: 1. Test chamber; 10. Air inlet; 11. Air outlet; 2. Six-degree-of-freedom platform; 20. Connecting flange; 3. Salt spray test chamber; 30. Conveying pipe; 4. Illumination simulation unit; 40. Outer shell; 41. Light-transmitting protective plate; 5. Environmental wind simulation unit; 6. Vibration platform. Detailed Implementation
[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.
[0021] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.
[0022] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.
[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0024] This embodiment provides a simulation testing device for shipborne equipment, such as... Figure 1 As shown, the simulation testing device includes a test chamber 1, a six-degree-of-freedom platform 2, a salt spray test chamber 3, and a light simulation unit 4. The test chamber 1 is mounted on the six-degree-of-freedom platform 2. The salt spray test chamber 3 is connected to the test chamber 1 and delivers the generated salt spray into the test chamber 1. The light simulation unit 4 is located inside the test chamber 1. Firstly, by setting up the six-degree-of-freedom platform 2, the movement of a ship along six degrees of freedom during its voyage at sea can be simulated, thereby simulating the low-frequency inertial impact of ship swaying on electronic and electrical equipment, increasing the reliability of the simulation experiment. Secondly, by setting up the salt spray test chamber 3, salt spray can be delivered into the test chamber 1 to simulate the salt spray environment encountered by a ship in the ocean. The light simulation unit 4 simulates the lighting conditions encountered by a ship in the ocean. Research shows that light can accelerate the evaporation and condensation of salt spray on the surface of metal devices through radiation, resulting in a rapid and significant increase in the chloride ion concentration on the surface of the metal devices, which accelerates the corrosion of the metal device surface by the salt spray. Therefore, by adding a light simulation unit 4 while setting up the salt spray test chamber 3, the light-salt spray coupling effect experienced by the ship during actual navigation can be simulated, thereby increasing the reliability of the simulation experiment.
[0025] Compared to existing testing methods that only use a salt spray generation system to simulate the salt spray environment for the device under test, the simulation testing device provided in this embodiment not only includes a salt spray testing machine 3, but also a six-degree-of-freedom platform 2 and a light simulation unit 4, which can more realistically simulate the environment during ship navigation and increase the reliability of the experiment. It should be noted that the six-degree-of-freedom platform 2 and the salt spray testing machine 3 in this embodiment are conventional equipment and can be directly purchased from the market.
[0026] The illumination simulation unit 4 in this embodiment includes a housing 40, a full-spectrum LED array (not shown in the figure), and a light-transmitting protective plate 41. The housing 40 has an open cavity, the full-spectrum LED array is disposed within the cavity, and the light-transmitting protective plate 41 is disposed within the housing 40 and closes the open cavity. The light-transmitting protective plate 41 is made of quartz glass with a light transmittance of up to 95% and good corrosion resistance, preventing salt spray corrosion and preventing salt spray from entering the cavity and corroding the full-spectrum LED array. The full-spectrum LED array can be directly purchased from the market, and its light intensity is adjustable (0-1200W / m²). 2 (Adjustable), thus enabling the simulation of solar radiation intensity experienced by a ship at different locations and times during navigation.
[0027] In this embodiment, the bottom of the test chamber 1 is provided with a connecting flange 20, and the test chamber 1 is fixedly installed on the six-degree-of-freedom platform 2 through the connecting flange 20. In addition, the test chamber 1 in this embodiment is made of double-layer stainless steel plate, which has high strength.
[0028] Furthermore, the simulation testing device provided in this embodiment also includes an environmental wind simulation unit 5, which includes a blowing device. The test chamber 1 is provided with an air inlet 10 and an air outlet 11, and the blowing device is located at the air inlet 10. Similar to the setting of the illumination simulation unit 4, the setting of the environmental wind simulation unit 5 can improve the similarity between the simulated environment and the real environment by simulating the sea wind encountered by a ship during navigation. Studies have shown that in the real environment of ship navigation, salt spray not only has a coupling effect with illumination but also with sea wind. Specifically, compared to the way salt spray migrates and deposits on the surface of metal devices through natural diffusion, environmental wind can force salt spray particles to impact and deposit on the surface of metal devices with higher kinetic energy, which can significantly improve the corrosive and destructive effect of salt spray on the surface of metal devices. In addition, when there are gaps or holes in the structure of electronic and electrical equipment, salt spray can generally only deposit at the edges of gaps or holes through natural diffusion, but under the action of environmental wind, salt spray can penetrate deep into the interior of gaps or holes. Therefore, by setting up the environmental wind simulation unit 5, the reliability of the simulation experiment can be further improved.
[0029] The blower can be purchased directly from the market. In this embodiment, the blower is a fan with adjustable wind speed. Through the cooperation of the fan, air inlet 10 and air outlet 11, a dynamic wind field can be formed in the test chamber 1.
[0030] Furthermore, the simulation testing device provided in this embodiment also includes a vibration platform 6, which is housed within the test chamber 1. The vibration platform 6 in this embodiment is conventional equipment and can be directly purchased from the market. It generally includes a vibration table, power amplifier, vibration control instruments, and accelerometer. The vibration platform 6 adopts a fully sealed structure to prevent salt spray from entering and causing corrosion. The device under test can be positioned on the vibration platform 6. By setting up the vibration platform 6, the mechanical vibration experienced by electronic and electrical equipment can be simulated. In conjunction with the six-degree-of-freedom platform 2, the vibration platform 6 can simultaneously simulate the low-frequency inertial impact and high-frequency local stress experienced by electronic and electrical equipment during ship navigation, improving the accuracy of the simulation test.
[0031] In this embodiment, the test chamber 1 is designed as a cuboid. The illumination simulation unit 4 is placed on the top wall of the test chamber 1, the vibration platform 6 is placed on the bottom wall of the test chamber 1, and the air inlet 10 and air outlet 11 are respectively placed on the opposite side walls of the test chamber 1. This design allows for a more rational layout of the illumination simulation unit 4, the vibration platform 6, and the air blowing device. Furthermore, this embodiment includes multiple sets of air blowing devices arranged at the same height. The number of air inlets 10 and air outlets 11 are the same as the number of air blowing devices and are correspondingly arranged. This structural design allows for flexible control of wind speed and direction by selectively opening or closing some or all of the air blowing devices, thus better simulating ambient wind.
[0032] In this embodiment, the salt spray test chamber 3 is equipped with multiple delivery pipes 30 for conveying salt spray to the test chamber 1. Figure 1 (Only one is shown in the diagram). Multiple delivery pipes 30 extend from the bottom wall of the test chamber 1 into the test chamber 1, and the ports of the delivery pipes 30 are not higher than the air inlet 10. The above structural design allows the salt spray delivered into the test chamber 1 to diffuse more quickly and evenly throughout the entire space inside the test chamber 1.
[0033] The simulation testing device provided in this embodiment also includes a control unit. The six-degree-of-freedom platform 2, salt spray test chamber 3, light simulation unit 4, environmental wind simulation unit 5, and vibration platform 6 are all electrically connected to the control unit and operate under its control. The control unit enhances the automation level of the simulation testing device, allowing for pre-setting of various parameters before the entire simulation testing process is controlled by the control unit. Furthermore, the simulation testing device also includes a temperature and humidity sensor, a salt spray concentration meter, and an accelerometer installed within the test chamber 1. These sensors are all electrically connected to the control unit and used to transmit detection data to it. It is readily understood that the control unit can adjust the operating parameters of the six-degree-of-freedom platform 2, salt spray test chamber 3, light simulation unit 4, environmental wind simulation unit 5, and vibration platform 6 based on the acquired detection data.
[0034] When using this simulation testing device to test the equipment under test, the operator can place the equipment under test on the vibration platform 6 and then preset various parameters in the control unit according to the test requirements. Afterwards, the control unit controls the operation of the six-degree-of-freedom platform 2, salt spray test chamber 3, light simulation unit 4, ambient wind simulation unit 5, and vibration platform 6 according to the preset parameters. The salt spray test chamber 3 generates salt spray and delivers it to the test chamber 1 through the delivery pipe 30. The control unit acquires corresponding detection data through various sensors and adjusts the control of the six-degree-of-freedom platform 2, salt spray test chamber 3, light simulation unit 4, ambient wind simulation unit 5, and vibration platform 6 based on the detection data. For example, when the salt spray concentration in the test chamber 1 reaches the preset parameter, the control unit can control the salt spray test chamber 3 to stop working.
[0035] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.
Claims
1. A simulation testing device for shipborne equipment, the simulation testing device comprising a test chamber (1), characterized in that, The simulation testing device also includes a six-degree-of-freedom platform (2), a salt spray test machine (3), and a light simulation unit (4). The test chamber (1) is set on the six-degree-of-freedom platform (2). The salt spray test machine (3) is connected to the test chamber (1) and delivers the generated salt spray into the test chamber (1). The light simulation unit (4) is set inside the test chamber (1).
2. The simulation testing device as described in claim 1, characterized in that, The illumination simulation unit (4) includes a housing (40), a full-spectrum LED array, and a light-transmitting protective plate (41). The housing (40) is provided with an open cavity, the full-spectrum LED array is disposed in the cavity, and the light-transmitting protective plate (41) is disposed on the housing (40) and closes the open cavity.
3. The simulation testing device as described in claim 1, characterized in that, The bottom of the test box (1) is provided with a connecting flange (20), and the test box (1) is fixedly installed on the six-degree-of-freedom platform (2) through the connecting flange (20).
4. The simulation testing apparatus as described in any one of claims 1 to 3, characterized in that, The simulation test device also includes an environmental wind simulation unit (5), which includes a blowing device. The test box (1) is provided with an air inlet (10) and an air outlet (11), and the blowing device is located at the air inlet (10).
5. The simulation testing apparatus as described in claim 4, characterized in that, The simulation test device also includes a vibration platform (6), which is set inside the test box (1).
6. The simulation testing apparatus as described in claim 5, characterized in that, The test box (1) is a cuboid. The illumination simulation unit (4) is located on the top wall of the test box (1). The vibration platform (6) is located on the bottom wall of the test box (1). The air inlet (10) and the air outlet (11) are respectively located on the opposite side walls of the test box (1).
7. The simulation testing apparatus as described in claim 6, characterized in that, The blowing device is provided in multiple sets, and the multiple sets of the blowing device are arranged at the same height. The number of air inlets (10) and the number of air outlets (11) are the same as the number of blowing devices and are set accordingly.
8. The simulation testing apparatus as described in claim 6, characterized in that, The salt spray test chamber (3) is equipped with multiple delivery pipes (30) for delivering salt spray to the test chamber (1). The multiple delivery pipes (30) extend from the bottom wall of the test chamber (1) into the test chamber (1), and the port of the delivery pipe (30) is not higher than the air inlet (10).
9. The simulation testing apparatus as described in claim 5, characterized in that, The simulation testing device also includes a control unit. The six-degree-of-freedom platform (2), salt spray test chamber (3), light simulation unit (4), environmental wind simulation unit (5) and vibration platform (6) are all electrically connected to the control unit and are controlled by the control unit to work.
10. The simulation testing apparatus as described in claim 9, characterized in that, The simulation test device also includes a temperature and humidity sensor, a salt spray concentration meter and an acceleration sensor installed in the test chamber (1). The temperature and humidity sensor, the salt spray concentration meter and the acceleration sensor are all electrically connected to the control unit and are used to transmit detection data to the control unit.