CN110816881A - Aerostat thermal characteristic test method - Google Patents

Abstract

The invention relates to an aerostat thermal characteristic test method, comprising the following steps: step S1, connecting a data acquisition instrument with a data storage and processing module, and debugging the running state; step S2, installing a data acquisition module on the aerostat, And debug the aerostat; step S3, test the thermal characteristics of the aerostat; step S4, complete the analysis and processing of the thermal characteristics test data of the aerostat after the test; this test method can truly reflect the aerostat under certain thermal environmental conditions. Thermal characteristics, so as to verify and improve the calculation model of the thermal characteristics of the aerostat.

Description

A test method for thermal characteristics of aerostats

technical field

The invention belongs to the technical field of aerostats, and in particular relates to a method for testing thermal characteristics of an aerostat.

Background technique

The aerostat uses the buoyant gas with the inner filling density lower than the air to obtain the buoyant force to realize the lift-off and high-altitude resident flight. Test methods for properties.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects of the prior art, and to provide a test method capable of measuring the thermal characteristics of the aerostat, so as to obtain the thermal characteristic data of the aerostat under certain thermal environmental conditions.

The invention provides an aerostat thermal characteristic test method, comprising the following steps:

Step S1, connect the data acquisition instrument to the data storage and processing module, and debug the running state;

Step S2, install a data acquisition module on the aerostat, and debug the aerostat;

Step S3, testing the thermal characteristics of the aerostat;

Step S4, after the test, the analysis and processing of the test data of the thermal characteristics of the aerostat is completed.

Further, the step S1 includes: step S101, connecting the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat differential pressure data acquisition module to the data acquisition and storage module, and enabling the environmental data acquisition module and the aerostat The aerostat temperature data acquisition module and the aerostat differential pressure data acquisition module ensure that the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat differential pressure data acquisition module function normally and the collected data is accurate.

Further, the step S1 further includes: step S102, debugging the test state recording module to ensure that the test state recording module functions normally.

Further, the step S1 includes: step S103, turning on the infrared thermal imager to ensure that the infrared thermal imager functions normally, and setting the infrared thermal imager parameters according to the infrared emissivity of the surface of the aerostat.

Further, the step S2 includes: step S201, according to the type of the aerostat, temperature sensors are arranged on the surface of the aerostat and temperature measurement points inside the aerostat, the surface temperature sensor is pasted to the surface of the aerostat with tape, and the internal temperature sensor is used Through the wall flange to connect the internal and external wiring;

Step S202, install the aerostat differential pressure data acquisition module on the aerostat, and the aerostat differential pressure data acquisition module is connected to the data acquisition and processing module;

In step S203, the aerostat is filled with helium gas, the aerostat is moved to an outdoor open place, and the aerostat is suspended and fixed by a rope.

Further, the step S3 includes: step S301, start the environmental data collection module, the aerostat temperature data collection module, and the aerostat differential pressure data collection module, test the aerostat thermal characteristic data, and store the aerostat thermal characteristic data. Transfer to data acquisition, storage and processing modules;

Step S302 , during the test, a test state recording module is used to record the state change of the aerostat during the test.

Further, the aerostat is a boat-shaped aerostat, and the boat-shaped aerostat bag is divided into five temperature measurement areas along the length direction. 8 temperature measurement points are evenly arranged for the spacing; 9 temperature measurement points or 5 temperature measurement points are evenly arranged inside the capsule along two directions perpendicular to each other through the center of the section.

Further, the aerostat is a spherical aerostat, and the spherical aerostat capsule is divided into five temperature measurement areas along the vertical height direction, and the surfaces of the two temperature measurement areas at the top and bottom of the capsule are respectively One temperature measurement point to measure the surface temperature of the top and bottom ends of the spherical aerostat capsule; in the three temperature measurement areas in the middle, 8 temperature measurement points are evenly arranged at 45 degrees in the circumference of the capsule surface; 9 temperature measurement points or 5 temperature measurement points are evenly arranged in two directions perpendicular to each other through the center of the section.

Further, on the inner centerline of the spherical aerostat, along the vertical height direction, two more temperature measurement points are arranged in the middle of the three temperature measurement areas.

Further, if the aerostat has a solar cell, a temperature measuring point is arranged on the upper surface of the solar cell.

The invention has the following beneficial effects: the thermal characteristics of the aerostat can be tested comprehensively through the test method for the thermal characteristics of the aerostat, and the thermal characteristics of the aerostat under certain thermal environmental conditions can be truly reflected through the test method, thereby verifying and improving the floating Calculation model of air heater thermal characteristics.

Description of drawings

Figure 1 is a schematic diagram of the structure of the aerostat thermal characteristic test system.

Figure 2 is a schematic diagram of the temperature measurement point layout of the boat-shaped aerostat.

Figure 3 is a schematic diagram of the temperature measurement point layout of the spherical aerostat.

Wherein, the above drawings include the following reference signs: 1, aerostat; 2, environmental data acquisition module; 3, aerostat temperature data acquisition module; 4, aerostat differential pressure data acquisition module; 5, data storage and Processing module; 6. Test status recording module.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1

As shown in Figure 1, an aerostat thermal characteristic test system includes an aerostat 1, an environmental data acquisition module 2, aerostat temperature data acquisition module 3, aerostat differential pressure data acquisition module 4, data storage and The processing module 5 and the test state recording module 6 have six modules.

The environmental data acquisition module 2 , the aerostat differential pressure data acquisition module 3 , and the aerostat differential pressure data acquisition module 4 are connected to the data storage and processing module 5 .

The aerostat 1 is a thermal characteristic test object, including aerostats such as airships, tethered balloons, zero-pressure balloons or super-pressure balloons.

Environmental data acquisition module 2, including ambient atmospheric temperature, ambient atmospheric pressure, ambient atmospheric humidity, ambient wind speed and direction, and solar radiation intensity tester, used to measure ambient atmospheric temperature data, ambient atmospheric pressure data, ambient atmospheric humidity data, and ambient wind speed and direction. and solar radiation intensity data.

The aerostat temperature data acquisition module 3 includes a temperature sensor, the temperature sensor is used to measure the surface and internal temperature data of the aerostat, and the aerostat temperature data is transmitted to the data storage and processing module in real time during the experiment;

The aerostat temperature data acquisition module 3 also includes an infrared imager, which is used to measure the temperature distribution on the surface of the aerostat. The test data is stored in the infrared imager and used alone during the test. After the test, the data is stored in the data storage and in the processing module.

The aerostat differential pressure data acquisition module 4 includes a differential pressure sensor for measuring the differential pressure inside and outside the aerostat.

The data storage and processing module 5 is mainly composed of computer hardware and data processing software, and is used for storing and processing the data transmitted by each data collector.

The test state recording module 6 is composed of two cameras and is used to record the state changes of the aerostat during the test.

All data are collected and stored in the computer. The experimental data is used to verify and improve the calculation model of the thermal characteristics of the aerostat, and to guide the design of the subsequent experimental scheme.

Example 2

An aerostat thermal characteristic test method, comprising the following steps:

Step S1, connect the data acquisition instrument with the data storage and processing module, and debug the running state.

Step S101, connect the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat differential pressure data acquisition module to the data acquisition and storage module, and open the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat temperature data acquisition module The differential pressure data acquisition module ensures that the environmental data acquisition module, the aerostat temperature data acquisition module, and the differential pressure data acquisition module function normally and the acquired data is accurate;

Step S102, debug the test state recording module to ensure that the test state recording module functions normally.

In step S103, the infrared thermal imager is turned on to ensure that the infrared thermal imager functions normally, and the infrared thermal imager parameters are set according to the infrared emissivity of the surface of the aerostat.

Step S103: Debug the test state recording module to ensure that the test state recording module functions normally.

Step S2, install a data acquisition module on the aerostat, and debug the aerostat.

Step S201, according to the type of the aerostat, temperature sensors are arranged on the surface of the aerostat and the temperature measuring points inside the aerostat, the surface temperature sensor is pasted to the surface of the aerostat with tape, and the internal temperature sensor is connected with the internal and external wiring using the through-wall flange;

Step S202, install the aerostat differential pressure data acquisition module on the aerostat, and the aerostat differential pressure data acquisition module is connected to the data acquisition and processing module;

Step S203, filling the aerostat with helium, moving the aerostat to an outdoor open space, and using a rope to suspend and fix the aerostat;

Step S3, testing the thermal characteristics of the aerostat.

Step S301, turn on the environmental data acquisition module, the aerostat temperature data acquisition module, and the pressure difference data acquisition module, test the aerostat thermal characteristic data, and transmit the aerostat thermal characteristic data to the data acquisition, storage and processing module;

Step S302 , during the test, a test state recording module is used to record the state change of the aerostat during the test.

In step S4, after the test, the analysis and processing of the test data of the thermal characteristics of the aerostat is completed, so as to verify and improve the calculation model of the thermal characteristics of the aerostat.

If the aerostat is a boat-shaped aerostat, the temperature measurement points on the surface of the boat-shaped aerostat and inside the bag are arranged as shown in Figure 2. The small dots are the temperature measurement points on the surface of the boat-shaped aerostat capsule, and the small squares are the temperature measurement points for the gas temperature inside the boat-shaped aerostat capsule.

The boat-shaped aerostat bag is divided into five temperature measurement areas along the length direction. In each temperature measurement area, 8 temperature measurement points are evenly arranged at 45 degree intervals on the surface of the bag body; 9 temperature measurement points are evenly arranged in two directions perpendicular to each other in the center of the section. If the diameter of the section is small, it can be reduced to 5 temperature measurement points.

As shown in Figure 2, if there is a solar cell, a temperature measuring point is arranged on the upper surface of the solar cell.

If the aerostat is a spherical aerostat, the temperature measurement points on the surface of the spherical aerostat and inside the bag are arranged as shown in FIG. 3 . The small dots are the temperature measurement points on the surface of the spherical aerostat capsule, and the small squares are the temperature measurement points for the gas temperature inside the spherical aerostat capsule.

The spherical aerostat capsule is divided into five temperature measurement areas along the vertical height direction, and there is a temperature measurement point on the surface of the two temperature measurement areas at the top and bottom of the capsule. The surface temperature of the bottom end; in the three temperature measurement areas in the middle, 8 temperature measurement points are evenly arranged at 45 degrees in the circumferential direction of the capsule surface; If the diameter of the section is small, it can be reduced to 5 temperature measurement points. On the inner centerline of the spherical aerostat, along the vertical height direction, two more temperature measurement points are arranged in the middle of the three temperature measurement areas to measure the temperature of the internal gas.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, The simplification should be equivalent replacement manners, which are all included in the protection scope of the present invention.

Claims (10)

1. an aerostat thermal characteristic test method, is characterized in that, comprises the following steps: Step S1, connect the data acquisition instrument to the data storage and processing module, and debug the running state; Step S2, install a data acquisition module on the aerostat, and debug the aerostat; Step S3, testing the thermal characteristics of the aerostat; Step S4, after the test, the analysis and processing of the test data of the thermal characteristics of the aerostat is completed. 2. a kind of aerostat thermal characteristic test method according to claim 1, is characterized in that, described step S1 comprises: step S101, the environmental data acquisition module, the aerostat temperature data acquisition module, the aerostat pressure The differential data acquisition module is connected to the data acquisition and storage module, and the environmental data acquisition module, aerostat temperature data acquisition module, and aerostat differential pressure data acquisition module are enabled to ensure that the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat temperature data acquisition module. The air pressure difference data acquisition module functions normally, and the collected data is accurate. 3. The aerostat thermal characteristic test method according to claim 2, wherein the step S1 further comprises: step S102, debugging the test state recording module to ensure that the test state recording module functions normally. 4. A kind of aerostat thermal characteristic test method according to claim 1, is characterized in that, described step S1 comprises: Step S103, turn on infrared thermal imager, ensure that infrared thermal imager functions normally, according to the aerostat Surface infrared emissivity, set infrared thermal imager parameters. 5. A kind of aerostat thermal characteristic test method according to claim 1, is characterized in that, described step S2 comprises: Step S201, according to the type of the aerostat, temperature sensors are arranged on the surface of the aerostat and the temperature measuring points inside the aerostat, the surface temperature sensor is pasted to the surface of the aerostat with tape, and the internal temperature sensor is connected with the internal and external wiring using the through-wall flange; Step S202, install the aerostat differential pressure data acquisition module on the aerostat, and the aerostat differential pressure data acquisition module is connected to the data acquisition and processing module; In step S203, the aerostat is filled with helium gas, the aerostat is moved to an outdoor open place, and the aerostat is suspended and fixed by a rope. 6. A kind of aerostat thermal characteristic test method according to claim 1, is characterized in that, described step S3 comprises: Step S301, turn on the environmental data acquisition module, the aerostat temperature data acquisition module, and the aerostat differential pressure data acquisition module, test the aerostat thermal characteristic data, and transmit the aerostat thermal characteristic data to the data acquisition, storage and processing module ; Step S302 , during the test, a test state recording module is used to record the state change of the aerostat during the test. 7 . The thermal characteristic test method of an aerostat according to claim 5 , wherein the aerostat is a boat-shaped aerostat, and the boat-shaped aerostat bladders are divided into five along the length direction. 8 . In the temperature measurement area, in each temperature measurement area, 8 temperature measurement points are evenly arranged at 45 degrees in the circumferential direction of the surface of the capsule body; 9 temperature measurement points are evenly arranged inside the capsule body along two directions perpendicular to each other through the center of the section point or 5 temperature measurement points. 8 . The thermal characteristic test method of an aerostat according to claim 5 , wherein the aerostat is a spherical aerostat, and the spherical aerostat capsule is divided into five along the vertical height direction. 9 . In the temperature measurement area, there is a temperature measurement point on the surface of the two temperature measurement areas at the top and bottom of the capsule, respectively, to measure the surface temperature of the top and bottom of the spherical aerostat capsule; the three temperature measurement areas in the middle are on the surface of the capsule. 8 temperature measurement points are evenly arranged at 45 degrees in the circumferential direction; 9 temperature measurement points or 5 temperature measurement points are evenly arranged inside the capsule along two directions perpendicular to each other through the center of the section. 9 . The method for testing thermal characteristics of an aerostat according to claim 8 , wherein two more temperature measurement areas are arranged on the inner centerline of the spherical aerostat along the vertical height direction. 10 . temperature measurement point. 10 . The thermal characteristic test method of an aerostat according to claim 7 , wherein if the aerostat has a solar cell, a temperature measuring point is arranged on the upper surface of the solar cell. 11 .

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