Combination testing method and apparatus for general modules, computer readable storage medium
Patent Information
- Application Number
- CN202611487318.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-23
- Publication Date
- 2026-10-30
AI Technical Summary
[0004]然而，相关技术中对通用模块进行试验时存在工况全面性不足的问题，导致对通用模块进行环境适应性考核的结果不准确
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Figure CN123019850A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of testing general modules, and in particular to a combined testing method and apparatus for general modules, and a computer-readable storage medium. Background Technology
[0002] Satellite communication systems, with their significant advantages such as wide coverage, long communication distance, and lack of geographical limitations, have become an indispensable and important component of modern communication systems. As a core component of satellite communication systems, the environmental adaptability assessment of general-purpose modules is a crucial step.
[0003] In related technologies, a specific test platform is often selected based on the actual application direction of the general module. Vibration tests are then conducted on the general module using this specific test platform. In addition, the environment of the general module's service area is set up in the laboratory, and the general module is exposed to the environment using the set up environment.
[0004] However, the related technologies suffer from insufficient comprehensiveness of operating conditions when testing general modules, resulting in inaccurate results in assessing the environmental adaptability of general modules. Summary of the Invention
[0005] Based on this, this application provides a combination test method and equipment for general modules, as well as a computer-readable storage medium, which can improve the accuracy of environmental adaptability assessment results for general modules while increasing the test efficiency of vibration tests for general modules.
[0006] Firstly, this application provides a method for combining and testing a general-purpose module applied in a satellite communication system. The method includes:
[0007] Obtain the initial power spectral density and initial vibration duration of each test platform when performing vibration tests with the general module;
[0008] Based on the initial vibration duration of each test platform, the vibration process of the general module is divided into multiple vibration stages, and the combination of test platforms mounted on the general module in each vibration stage is determined.
[0009] Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, the target power spectral density of the vibration platform with fixed general modules at different fixed frequencies in each vibration stage is determined.
[0010] Based on the target power spectral density at different fixed frequencies in each vibration stage, the vibration platform is controlled to conduct vibration tests on the general module and natural environment exposure tests on the general module.
[0011] In some embodiments, obtaining the initial power spectral density of each test platform when performing vibration tests with a universal module includes:
[0012] Obtain the random power spectral density and peak acceleration of constant frequency vibration of each test platform when performing vibration tests with a general module;
[0013] The fixed-frequency power spectral density is determined based on the peak acceleration of the fixed-frequency vibration and the preset analysis bandwidth.
[0014] The initial power spectral density is determined based on the random power spectral density and the fixed-frequency power spectral density.
[0015] In some embodiments, obtaining the initial vibration duration of each test platform when performing vibration testing with a general-purpose module includes:
[0016] Obtain the total designed transportation time for each test platform equipped with the general module;
[0017] The initial vibration duration of each test platform is determined based on the total designed transportation time of each test platform and the preset number of vibration tests.
[0018] In some embodiments, the target power spectral density of the vibration platform with a fixed universal module at different fixed frequencies in each vibration stage is determined based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, including:
[0019] Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, the fatigue damage values of the general module at each vibration stage and at each fixed frequency on different test platforms are determined.
[0020] Based on the fatigue damage values of the general module on different test platforms at each vibration stage and at each fixed frequency, and the duration of each vibration stage, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage is determined.
[0021] In some embodiments, based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, the fatigue damage value of the general module at each fixed frequency on different test platforms is determined, including:
[0022] Based on the initial power spectral density of each test platform and the combination of test platforms mounted in each vibration stage, the stress power spectral density of different test platforms in each vibration stage and at each fixed frequency is determined.
[0023] Based on the stress power spectral density and duration of each vibration stage and at each fixed frequency on different test platforms, the fatigue damage values of the general module at each vibration stage and at each fixed frequency on different test platforms are determined.
[0024] In some embodiments, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage is determined based on the fatigue damage values of the general module on different test platforms at each vibration stage and at each fixed frequency, and the duration of each vibration stage, including:
[0025] The maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency was determined from the fatigue damage values of the general module on different test platforms at each vibration stage and at each fixed frequency.
[0026] Based on the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency, and the duration of each vibration stage, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage is determined.
[0027] In some embodiments, based on the target power spectral density at different fixed frequencies in each vibration stage, the vibration platform is controlled to conduct vibration tests on the general-purpose module and natural environment exposure tests on the general-purpose module, including:
[0028] Based on the target power spectral density at the current fixed frequency of each vibration stage, the vibration platform is controlled to conduct vibration tests on the general module, and then the general module is subjected to natural environment exposure tests; the first current fixed frequency is the first fixed frequency among different fixed frequencies;
[0029] If the current fixed frequency is not the last fixed frequency among the different fixed frequencies, the next fixed frequency is determined as the new current fixed frequency, and the previous step is repeated until the current fixed frequency is the last fixed frequency among the different fixed frequencies, thus completing the combination test of the general module.
[0030] In some embodiments, the test platform combination mounted on the general module at each vibration stage includes:
[0031] The general-purpose module is mounted on fixed-wing aircraft platforms, helicopter platforms, ship platforms, highway vehicle platforms, and dirt road vehicle platforms during the first vibration phase.
[0032] The general-purpose module is mounted on fixed-wing aircraft platforms, helicopter platforms, ship platforms, and vehicle platforms that travel on dirt roads during the second vibration phase.
[0033] The general-purpose module is mounted on a fixed-wing aircraft platform and a helicopter platform during the third vibration phase;
[0034] The general module is mounted on a fixed-wing aircraft platform in the fourth vibration phase.
[0035] In a second aspect, this application provides a combined testing device for general modules, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the combined testing method for general modules of any one of the first aspects.
[0036] Thirdly, this application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any one of the first aspects. Attached Figure Description
[0037] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0038] Figure 1 A flowchart illustrating a combined testing method for general modules provided in some embodiments;
[0039] Figure 2 A flowchart illustrating a method for obtaining the initial power spectral density of each test platform during vibration testing using a general-purpose module, as provided in some embodiments;
[0040] Figure 3 A flowchart illustrating a method for obtaining the initial vibration duration of each test platform during vibration testing using a general-purpose module, as provided in some embodiments;
[0041] Figure 4 A flowchart illustrating a method for determining a target power spectral density provided in some embodiments;
[0042] Figure 5 A schematic diagram of the structure of a combined test apparatus of general modules provided in some embodiments;
[0043] Figure 6 A schematic diagram of the structure of a combined test apparatus of general modules provided in some embodiments. Detailed Implementation
[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined. In the description of the embodiments of this application, "each" means each of the multiple options, unless otherwise explicitly defined.
[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0049] A general-purpose module in a satellite communication system refers to a basic functional module within the system that is not specific to any particular satellite, frequency band, service, or terminal model. It possesses an initialization interface, initialization electrical performance and functions, and is universally compatible and interchangeable across different systems, allowing for unified management and testing. In this application's embodiments, the general-purpose module in the satellite communication system can be a general-purpose module in the ground station equipment of the satellite communication system. For example, a general-purpose module in the ground station equipment of a satellite communication system may include a power supply board, channel module, or frequency converter, etc.
[0050] General-purpose modules can be deployed on multiple platforms, such as aircraft, helicopters, ships, or vehicles. These modules are exposed to diverse natural climates, and their performance degradation becomes particularly pronounced when operating in harsh environments such as humid oceans, arid deserts, and frigid climates. Therefore, testing general-purpose modules in satellite communication systems to assess their environmental adaptability is crucial for ensuring their functional performance and improving their environmental resilience.
[0051] The method described in this application embodiment can be applied to a combined testing device for general-purpose modules. Exemplarily, the combined testing device for general-purpose modules may include a computer device, a vibration platform, and an environmental exposure platform. The computer device is connected to both the vibration platform and the environmental exposure platform. The computer device is used to determine the target power spectral density required to vibrate the general-purpose module, and sends the target power spectral density to the vibration platform so that the vibration platform fixing the general-purpose module vibrates according to the target power spectral density. After determining that the vibration of the general-purpose module is complete, the computer device sends an exposure command to the environmental exposure platform so that the environmental exposure platform issues exposure indication information. This allows the testing personnel to place the general-purpose module in a natural environment to conduct a natural environment exposure test on the general-purpose module upon seeing the exposure indication information.
[0052] Figure 1 A flowchart illustrating a combined testing method for general modules provided in some embodiments, such as... Figure 1 As shown, the method includes the following steps:
[0053] S101. Obtain the initial power spectral density and initial vibration duration of each test platform when performing vibration tests with the general module.
[0054] Each test platform can be one of multiple test platforms. Multiple test platforms can include: fixed-wing aircraft platforms, helicopter platforms, ship platforms, highway vehicle platforms, and unpaved road vehicle platforms.
[0055] In some embodiments, the initial power spectral density of each test platform can be the random power spectral density of each test platform. The random power spectral density of each test platform can be preset. In other embodiments, the initial power spectral density of each test platform can be the sum of the random power spectral density and the fixed-frequency power spectral density of each test platform. The fixed-frequency power spectral density is determined based on the peak acceleration of the fixed-frequency vibration.
[0056] In some embodiments, the initial vibration duration of each test platform can be fixed or flexibly determined according to test requirements.
[0057] The following are the initial vibration durations of various test platforms provided in some embodiments: The initial vibration duration of the fixed-wing aircraft platform is 10 hours, including random power spectral density vibration; the initial vibration duration of the helicopter platform is 4 hours, including random power spectral density vibration and fixed-frequency power spectral density, which includes a first fixed-frequency power spectral density corresponding to the main rotor rotation frequency, a second fixed-frequency power spectral density corresponding to the first-order passing frequency of the main rotor, a third fixed-frequency power spectral density corresponding to the second-order passing frequency of the main rotor, and a third fixed-frequency power spectral density corresponding to the third-order passing frequency of the main rotor; the initial vibration duration of the ship platform is 2 hours, including random power spectral density vibration and fixed-frequency power spectral density; the initial vibration duration of the vehicle platform traveling on a highway is 1 hour, including random power spectral density vibration; and the initial vibration duration of the vehicle platform traveling on an unpaved road is 2 hours, including random power spectral density vibration.
[0058] S102. Based on the initial vibration duration of each test platform, the vibration process of the general module is divided into multiple vibration stages, and the combination of test platforms mounted on the general module in each vibration stage is determined.
[0059] In some embodiments, the maximum initial vibration duration among the initial vibration durations of each test platform can be obtained; the range from 0 to the maximum initial vibration duration is divided according to other initial vibration durations besides the maximum initial vibration duration among the initial vibration durations of each test platform, resulting in multiple vibration stages. For example, the duration ranges corresponding to the multiple vibration stages can be [0,1], (1,2], (2,4], and (4,10], in hours.
[0060] In some embodiments, the combination of test platforms mounted on the general module in each vibration stage can be determined based on the initial vibration duration of each test platform and the duration range of each vibration stage in multiple vibration stages. For example, the test platform corresponding to the initial vibration duration that is greater than or equal to the maximum value of the duration range of each vibration stage is determined as the combination of test platforms mounted on each vibration stage. For example, for the third vibration stage (2,4], if the test platforms corresponding to the initial vibration duration that is greater than or equal to the maximum value of the duration range of the third vibration stage (2,4] include a fixed-wing aircraft platform and a helicopter platform, then the combination of test platforms mounted on the third vibration stage (2,4) is a fixed-wing aircraft platform and a helicopter platform.
[0061] For example, the test platform combinations mounted on the general module in each vibration stage include: a fixed-wing aircraft platform, a helicopter platform, a ship platform, a highway vehicle platform, and an unpaved road vehicle platform mounted on the general module in the first vibration stage; a fixed-wing aircraft platform, a helicopter platform, a ship platform, and an unpaved road vehicle platform mounted on the general module in the second vibration stage; a fixed-wing aircraft platform and a helicopter platform mounted on the general module in the third vibration stage; and a fixed-wing aircraft platform mounted on the general module in the fourth vibration stage.
[0062] The durations of the first, second, third, and fourth vibration stages range from [0,1], (1,2], (2,4], and (4,10], respectively, in hours.
[0063] S103. Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, determine the target power spectral density of the vibration platform with the fixed general module at different fixed frequencies in each vibration stage.
[0064] The fixed frequency in this embodiment can be the fixed frequency of a general-purpose module. The general-purpose module includes multiple fixed frequencies, which can be pre-calibrated. For example, the general-purpose module can include multiple devices, and the multiple fixed frequencies can be the fixed frequency of each of the multiple devices.
[0065] S104. Based on the target power spectral density at different fixed frequencies in each vibration stage, control the vibration platform to conduct vibration tests on the general module and natural environment exposure tests on the general module.
[0066] The technical solution provided in this application, by matching corresponding test platform combinations according to vibration stages and combining the initial power spectral density and initial vibration duration of each test platform, solves the target power spectral density of the general module at different fixed frequencies for each vibration stage step by step. Based on the target power spectral density, vibration tests and natural environment exposure tests are carried out simultaneously. This effectively compensates for the lack of comprehensiveness in related technical conditions, fully covers the actual vibration excitation characteristics corresponding to each fixed frequency of the general module, accurately restores the real service vibration environment of multi-test platform segmented coupling, and, combined with natural environment exposure tests for collaborative evaluation, makes the vibration excitation loading of the general module more closely resemble actual operating conditions, thus improving the performance of the general module. The comprehensiveness of operating conditions during testing improves the accuracy of environmental adaptability assessment results for general-purpose modules. Furthermore, based on the initial power spectral density of each test platform, the combination of test platforms used in each vibration stage, and the duration of each vibration stage, the target power spectral density of the vibration platform for fixing the general-purpose module at different fixed frequencies in each vibration stage is determined. By controlling the vibration platform to conduct vibration tests on the general-purpose module according to the target power spectral density at different fixed frequencies in each vibration stage, the vibration test results of multiple test platforms can be integrated. The operating conditions of multiple platforms can be covered in a single vibration test, effectively simplifying the test process and significantly improving the test efficiency of vibration testing of general-purpose modules.
[0067] Figure 2 The flowchart illustrates a method for obtaining the initial power spectral density of each test platform during vibration testing using a general-purpose module, as provided in some embodiments. Figure 2 As shown, the method includes the following steps:
[0068] S201. Obtain the random power spectral density and peak acceleration of fixed-frequency vibration of each test platform when the vibration test is carried out with the general module.
[0069] The peak acceleration of the constant frequency vibration of each test platform can be preset.
[0070] For example, the peak acceleration of the fixed-frequency vibration of a fixed-wing aircraft platform, a vehicle platform traveling on a highway, and a vehicle platform traveling on a dirt road is 0.
[0071] For example, the fixed-frequency vibration peak acceleration of the helicopter platform includes a first fixed-frequency vibration peak acceleration corresponding to the rotor rotation speed frequency, a second fixed-frequency vibration peak acceleration corresponding to the first-order passing frequency of the main rotor, a third fixed-frequency vibration peak acceleration corresponding to the second-order passing frequency of the main rotor, and a fourth fixed-frequency vibration peak acceleration corresponding to the third-order passing frequency of the main rotor.
[0072] S202. Determine the fixed-frequency power spectral density based on the peak acceleration of the fixed-frequency vibration and the preset analysis bandwidth.
[0073] In this embodiment, the preset analysis bandwidth is taken as 1 Hz, and the square of the peak acceleration of the fixed-frequency vibration is determined as the fixed-frequency power spectral density. In other embodiments, the preset analysis bandwidth can be other values, such as 0.5, 0.8, 1.2, or 1.5, etc. In this case, the ratio between the square of the peak acceleration of the fixed-frequency vibration and other values is determined as the fixed-frequency power spectral density.
[0074] S203. Determine the initial power spectral density based on the random power spectral density and the fixed-frequency power spectral density.
[0075] In some embodiments, the combination of random power spectral density and fixed-frequency power spectral density is determined as the initial power spectral density.
[0076] In the technical solution provided in this application embodiment, the random power spectral density and peak acceleration of fixed-frequency vibration of each test platform are obtained step by step. The fixed-frequency power spectral density is determined by combining the peak acceleration of fixed-frequency vibration with the preset analysis bandwidth. Then, the initial power spectral density is determined based on the random power spectral density and the fixed-frequency power spectral density. This can accurately integrate the relevant parameters of random vibration and fixed-frequency vibration of the test platform, ensuring that the initial power spectral density can fully cover the vibration characteristics required for the test. This effectively solves the problem of incomplete acquisition of the initial power spectral density of the test platform in related technologies and improves the comprehensiveness of the determined initial power spectral density of the test platform.
[0077] Figure 3 The flowchart illustrates a method for obtaining the initial vibration duration of each test platform during vibration testing using a general-purpose module, as provided in some embodiments. Figure 3 As shown, the method includes the following steps:
[0078] S301. Obtain the total design transportation time for each test platform equipped with the general module.
[0079] The total design transportation time for each test platform refers to the cumulative total design time for each test platform, as specified in the design phase, to complete its full-cycle transportation and service life with the universal modules. The total design transportation time represents the overall upper limit of the time allowed for the universal modules to undergo transportation vibration testing on the corresponding test platform.
[0080] In some embodiments, the total design transport time of the general-purpose module varies across different test platforms. For example, the total design transport time of the general-purpose module is 10,000 hours on a fixed-wing aircraft platform and 4,000 hours on a helicopter platform.
[0081] S302. Determine the initial vibration duration of each test platform based on the total designed transportation time of each test platform and the preset number of vibration tests.
[0082] The preset number of vibration test cycles can be pre-set. In some embodiments, the ratio of the total designed transportation time of each test platform to the preset number of vibration test cycles is determined as the initial vibration time of each test platform. In other embodiments, the ratio of the total designed transportation time of each test platform to the preset number of vibration test cycles is divided by a preset value to obtain the initial vibration time of each test platform. The preset value is a vibration acceleration equivalence coefficient pre-set during the test design phase, a fixed design parameter used to equivalently convert the actual transportation service time. By introducing this preset value, the laboratory vibration test time can be shortened without changing the vibration excitation characteristics or reducing the assessment severity, thus achieving accelerated equivalent vibration assessment of transportation service conditions. For example, the preset value is pre-set according to the general module assessment level and the platform transportation vibration severity specification; different test platforms may correspond to the same or different preset values.
[0083] In the technical solution provided in this application embodiment, the total designed transportation time of the general modules carried by each test platform is obtained, and the corresponding initial vibration time is calculated by combining the total designed transportation time with the preset number of vibration test cycles. This allows for personalized time matching for the different transportation design lifespans of different test platforms, ensuring that the initial vibration time is consistent with the actual transportation service design conditions of each test platform. This solves the shortcomings of traditional technologies that use a uniform and fixed test time and cannot adapt to the differences in transportation conditions of multiple platforms. By relying on the preset number of cycles for standardized time conversion, the determination of the initial vibration time has a quantifiable and standardized basis, avoiding the problems of insufficient test time leading to incomplete coverage of working conditions, or time redundancy causing excessive test damage to the general modules. This improves the effectiveness of the determined initial vibration time of each test platform.
[0084] Figure 4 A flowchart illustrating a method for determining a target power spectral density provided in some embodiments, such as... Figure 4 As shown, this method is an exemplary interpretation of S103, and includes the following steps:
[0085] S401. Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, determine the fatigue damage value of the general module at each vibration stage and at each fixed frequency on different test platforms.
[0086] For example, for any test platform, if the initial power spectral density includes only the random power spectral density, then the fatigue damage value of the test platform includes only the fatigue damage value under the random power spectral density. For example, for any test platform, if the initial power spectral density includes both the random power spectral density and the fixed-frequency power spectral density, then the fatigue damage value of the test platform includes both the fatigue damage value under the random power spectral density and the fatigue damage value under the fixed-frequency power spectral density.
[0087] In some embodiments, S401 can be implemented by: determining the stress power spectral density of each vibration stage and different test platforms at each fixed frequency based on the initial power spectral density of each test platform and the combination of test platforms mounted in each vibration stage; and determining the fatigue damage value of the general module on different test platforms at each vibration stage and each fixed frequency based on the stress power spectral density of different test platforms at each vibration stage and each fixed frequency and the duration of each vibration stage.
[0088] For example, determining the stress power spectral density of different test platforms at each vibration stage and at each fixed frequency based on the initial power spectral density of each test platform and the combination of test platforms mounted at each vibration stage includes: determining the relative displacement response power spectral density of different test platforms at each vibration stage and at each fixed frequency based on the initial power spectral density of each test platform and the combination of test platforms mounted at each vibration stage; and determining the stress power spectral density of different test platforms at each vibration stage and at each fixed frequency based on the relative displacement response power spectral density of different test platforms at each vibration stage and at each fixed frequency.
[0089] In some embodiments, ;in, Indicates the excitation frequency. This represents the power spectral density of the relative displacement response. The frequency response function representing relative displacement. This represents the initial power spectral density, which is the excitation frequency. The function can be obtained based on the preset vibration test conditions of each test platform.
[0090] For example, ;in, Indicates a fixed frequency. This represents the damping ratio, which is 0.05 in this embodiment. It represents the imaginary unit.
[0091] In some embodiments, ;in, The stress-relative displacement proportionality constant is described in the embodiments of this application. The value of is 1, which means that it is assumed that the stress and the relative displacement are linearly proportional and the proportionality coefficient is 1. This represents the stress power spectral density.
[0092] In some embodiments, after obtaining Then, the fatigue damage value can be determined. Among them, fatigue damage value The calculation formula is as follows: ;in, The vibration duration is defined in the embodiments of this application as the vibration duration for each vibration stage. This represents the intercept of the standard SN curve (i.e., the fatigue strength coefficient). It represents the reciprocal of the slope of the standard SN curve (i.e., the fatigue index). The probability density function representing the stress amplitude; This represents the integral over all stress amplitudes.
[0093] For example, ;in, , , , , , , , , ;in, ; and thus be able to Obtain fatigue damage value .
[0094] S402. Based on the fatigue damage values of the general module on different test platforms and the duration of each vibration stage at each fixed frequency, determine the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage.
[0095] In some embodiments, S402 can be implemented by: determining the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency from the fatigue damage values of the general module at different test platforms at each vibration stage and at each fixed frequency; and determining the target power spectral density of the vibration platform at different fixed frequencies at each vibration stage based on the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency and the duration of each vibration stage.
[0096] For example, the fatigue damage values of different test platforms include not only the fatigue damage values under random power spectral density, but also the fatigue damage values under fixed frequency power spectral density. Thus, the maximum fatigue damage value can be the maximum fatigue damage value among multiple fatigue damage values under random power spectral density and multiple fatigue damage values under fixed frequency power spectral density.
[0097] The target power spectral density is determined based on the maximum fatigue damage value as follows: ;in, Indicates a fixed frequency; Indicates a fixed frequency The target power spectral density is as follows; Indicates the damping ratio; This represents the intercept of the standard SN curve (i.e., the fatigue strength coefficient). It represents the reciprocal of the slope of the standard SN curve (i.e., the fatigue index). Indicates a fixed frequency Lower fatigue damage value, The stress-relative displacement proportionality constant is described in the embodiments of this application. The value of is 1, which means that it is assumed that the stress and the relative displacement are linearly proportional and the proportionality coefficient is 1. The vibration duration is defined in the embodiments of this application as the vibration duration for each vibration stage. This is a gamma function.
[0098] Using the above method, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage can be calculated.
[0099] In some embodiments, based on the target power spectral density at different fixed frequencies in each vibration stage, the vibration platform is controlled to perform vibration tests on the general module and natural environment exposure tests on the general module. This includes: after controlling the vibration platform to perform vibration tests on the general module based on the target power spectral density at the current fixed frequency in each vibration stage, the general module is subjected to natural environment exposure tests; the first current fixed frequency is the first fixed frequency among different fixed frequencies; if the current fixed frequency is not the last fixed frequency among different fixed frequencies, the next fixed frequency is determined as the new current fixed frequency, and the previous step is repeated until the current fixed frequency is the last fixed frequency among different fixed frequencies, thus determining that the combined test of the general module is completed.
[0100] In some embodiments, based on the target power spectral density at different fixed frequencies in each vibration stage, the vibration platform is controlled to perform vibration tests on the general module and natural environment exposure tests on the general module. This includes: after controlling the vibration platform to perform vibration tests on the general module based on the target power spectral density at the current fixed frequency in each vibration stage, the general module is then subjected to natural environment exposure tests; the first current fixed frequency is the first fixed frequency among different fixed frequencies; if the current fixed frequency is not the last fixed frequency among different fixed frequencies, the next fixed frequency is determined as the new current fixed frequency, and the previous step is repeated until the current fixed frequency is the last fixed frequency among different fixed frequencies. Only when the vibration platform is controlled to perform vibration tests on the general module based on the random vibration envelope power spectral density and natural environment exposure tests on the general module is the combined test of the general module determined to be complete.
[0101] The random vibration envelope power spectral density can be determined based on the random power spectral density and initial vibration duration of each test platform. For example, the maximum initial vibration duration among the initial vibration durations of each test platform is determined, and the random power spectral density of each test platform is converted to a set power spectral density under the maximum initial vibration duration. The excitation frequency range corresponding to the random power spectral density of each test platform is obtained, and the range between the minimum starting frequency and the maximum ending frequency among multiple excitation frequency ranges is determined as the excitation frequency range corresponding to the set power spectral density. The random vibration envelope power spectral density is determined based on the maximum power spectral density of the set power spectral density of multiple test platforms at each excitation frequency point. The frequency interval between adjacent excitation frequency points can be a preset interval. For example, the frequency interval between adjacent excitation frequency points can be 1 Hz.
[0102] For example, the maximum power spectral density at each excitation frequency of the set power spectral density of multiple test platforms can be determined as the random vibration envelope power spectral density. Alternatively, the maximum power spectral density at each excitation frequency of the set power spectral density of multiple test platforms can be multiplied by a preset factor to obtain the random vibration envelope power spectral density. For example, the preset factor can be 1.2, 2, 2.5, or 3. For instance, if considering the need for a general-purpose module to meet the random vibration requirements of other platforms in the future, a certain margin (such as +3dB) is added to the test values, then the preset factor is 2.
[0103] The technical solution provided in this application involves sequentially conducting vibration tests on the target power spectral density corresponding to each vibration stage and each current fixed frequency, and simultaneously performing natural environment exposure tests after the single fixed frequency vibration test is completed. The current fixed frequency is switched and updated step by step until all fixed frequencies are tested. This achieves segmented and orderly coupling of vibration tests and natural environment exposure tests, enabling the general module to complete the corresponding natural environment aging test immediately after each fixed frequency vibration test. This fully reproduces the actual service conditions of alternating vibration and natural environment effects at multiple fixed frequencies, solving the problems of missing operating condition coupling characteristics and insufficient test fit caused by the separation of vibration and environmental tests in traditional technologies. At the same time, the progressively advancing test execution logic is standardized and controllable, and can fully cover all vibration test requirements at different fixed frequencies. This effectively improves the comprehensiveness of operating conditions and the authenticity of the test of the general module combination, thereby improving the accuracy and reliability of the environmental adaptability assessment results of the general module.
[0104] Based on the same concept, this application also provides a general module combination test apparatus for implementing the combination test method of the general modules involved above. The solution provided by this apparatus is similar to the implementation scheme described in the above method. Therefore, the specific limitations of the one or more general module combination test apparatus embodiments provided below can be found in the limitations of the general module combination test method above, and will not be repeated here.
[0105] In one exemplary embodiment, Figure 5 A schematic diagram of the structure of a combined test apparatus of general modules provided in some embodiments, such as Figure 5 As shown, the combined test apparatus of this universal module includes:
[0106] The acquisition module is used to acquire the initial power spectral density and initial vibration duration of each test platform when the vibration test is carried out with the general module;
[0107] The test platform combination determination module is used to divide the vibration process of the general module into multiple vibration stages based on the initial vibration duration of each test platform, and to determine the test platform combination on which the general module is mounted in each vibration stage.
[0108] The power spectral density determination module is used to determine the target power spectral density of the vibration platform with a fixed general module at different fixed frequencies in each vibration stage, based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage.
[0109] The test module is used to control the vibration platform to conduct vibration tests on the general module and natural environment exposure tests on the general module according to the target power spectral density at different fixed frequencies in each vibration stage.
[0110] In some embodiments, the acquisition module includes an acquisition unit and a determination unit. The acquisition unit is used to acquire the random power spectral density and the peak acceleration of fixed-frequency vibration of each test platform when the vibration test is performed with the general module. The determination unit is used to determine the fixed-frequency power spectral density based on the peak acceleration of fixed-frequency vibration and the preset analysis bandwidth, and to determine the initial power spectral density based on the random power spectral density and the fixed-frequency power spectral density.
[0111] In some embodiments, the acquisition module includes an acquisition unit and a determination unit. The acquisition unit is used to acquire the total design transportation time of each test platform equipped with the general module. The determination unit is used to determine the initial vibration time of each test platform based on the total design transportation time of each test platform and the preset number of vibration tests.
[0112] In some embodiments, the power spectral density determination module includes a fatigue damage value determination unit and a power spectral density determination unit; the fatigue damage value determination unit is used to determine the fatigue damage value of the general module at each vibration stage and at each fixed frequency on different test platforms based on the initial power spectral density of each test platform, the combination of test platforms mounted at each vibration stage, and the duration of each vibration stage; the power spectral density determination unit is used to determine the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage based on the fatigue damage value of the general module at each vibration stage and at each fixed frequency on different test platforms and the duration of each vibration stage.
[0113] In some embodiments, the fatigue damage value determination unit is further configured to determine the stress power spectral density of different test platforms at each vibration stage and at each fixed frequency based on the initial power spectral density of each test platform and the combination of test platforms mounted at each vibration stage; and to determine the fatigue damage value of the general module at different test platforms at each vibration stage and at each fixed frequency based on the stress power spectral density of different test platforms at each vibration stage and at each fixed frequency and the duration of each vibration stage.
[0114] In some embodiments, the power spectral density determination unit is further configured to determine the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency from the fatigue damage values of the general module at different test platforms at each vibration stage and at each fixed frequency; and to determine the target power spectral density of the vibration platform at different fixed frequencies at each vibration stage based on the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency and the duration of each vibration stage.
[0115] In some embodiments, the test module is further configured to control the vibration platform to conduct a vibration test on the general module based on the target power spectral density at the current fixed frequency of each vibration stage, and then conduct a natural environment exposure test on the general module; the first current fixed frequency is the first fixed frequency among different fixed frequencies; if the current fixed frequency is not the last fixed frequency among different fixed frequencies, the next fixed frequency is determined as the new current fixed frequency, and the previous step is repeated until the current fixed frequency is the last fixed frequency among different fixed frequencies, thus determining that the combined test of the general module is completed.
[0116] The descriptions of the above device embodiments are similar to those of the above method embodiments, and have similar beneficial effects. For technical details not disclosed in the device embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.
[0117] Each module in the combined testing device of the aforementioned general modules can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the combined testing device of the general modules in hardware form or independent of it, or they can be stored in the memory of the combined testing device of the general modules in software form, so that the processor can call and execute the operations corresponding to each module.
[0118] In one exemplary embodiment, Figure 6 This is a schematic diagram of a general-purpose module combined testing device provided in some embodiments. The device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computational and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals. Wireless communication can be achieved through Wireless Fidelity (WIFI), mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a general-purpose module combined testing method. The display unit of this universal module combined testing equipment is used to form a visually visible image, and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of this universal module combined testing equipment can be a touch layer covering the display screen, or buttons, a trackball, or a touchpad set on the housing of the universal module combined testing equipment, or an external keyboard, touchpad, or mouse, etc.
[0119] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the combined test equipment of the general modules to which the present application is applied. The specific combined test equipment of the general modules may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.
[0120] For example, a combined testing device of general modules includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the method of any of the above embodiments.
[0121] In one embodiment, a computer-readable storage medium is provided, wherein a computer program, when executed by a processor, implements the steps of the method provided in any of the above embodiments.
[0122] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the method provided in any of the above embodiments.
[0123] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the methods described above.
[0124] The processor, functional modules, or functional units in any embodiment of this application may include an integration of one or more of the following: a general-purpose processor, an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a central processing unit (CPU), a graphics processing unit (GPU), an embedded neural network processing unit (NPU), a controller, a microcontroller, a microprocessor, a programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a quantum computing-based data processing logic unit, an artificial intelligence (AI) processor, etc. Exemplarily, the general-purpose processor may be a microprocessor or any conventional processor.
[0125] The memory or computer-readable storage medium in any embodiment of this application may include at least one of non-volatile memory and volatile memory. Non-volatile memory includes integration of one or more of the following: Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory, Optical Disc, Compact Disc Read-Only Memory (CD-ROM), Magnetic Tape, Floppy Disk, Flash Memory, Optical Memory, High-Density Embedded Non-Volatile Memory, Resistive Random Access Memory (ReRAM), Magnetoresistive Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), Graphene Memory, Volatile Memory, etc. Volatile memory includes one or more of the following: Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).
[0126] The acquisition, transmission, storage, use, and processing of data in this application comply with relevant national laws and regulations. It should be noted that certain software, components, models, and other existing industry solutions may be mentioned in the embodiments of this application. These should be considered exemplary, intended only to illustrate the feasibility of implementing the technical solution of this application, and do not imply that the applicant has already used or necessarily used such solutions.
[0127] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.
[0128] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. A method for combined testing of general modules, characterized in that, The general-purpose module is applied in a satellite communication system, and the method includes: The initial power spectral density and initial vibration duration of each test platform equipped with the general module are obtained during vibration testing. Based on the initial vibration duration of each test platform, the vibration process of the general module is divided into multiple vibration stages, and the combination of test platforms mounted on the general module in each vibration stage is determined. Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, the target power spectral density of the vibration platform with the fixed general module at different fixed frequencies in each vibration stage is determined. Based on the target power spectral density at different fixed frequencies in each vibration stage, the vibration platform is controlled to conduct vibration tests on the general module and natural environment exposure tests on the general module.
2. The method according to claim 1, characterized in that, The process of obtaining the initial power spectral density of each test platform during vibration testing equipped with the general module includes: Obtain the random power spectral density and peak acceleration of constant frequency vibration of each test platform when the general module is used for vibration testing; The fixed-frequency power spectral density is determined based on the fixed-frequency vibration peak acceleration and the preset analysis bandwidth. The initial power spectral density is determined based on the random power spectral density and the fixed-frequency power spectral density.
3. The method according to claim 1, characterized in that, Obtain the initial vibration duration of each test platform when performing vibration tests using the general module, including: Obtain the total designed transportation time for each of the test platforms equipped with the general module; The initial vibration duration of each test platform is determined based on the total designed transportation time of each test platform and the preset number of vibration tests.
4. The method according to any one of claims 1-3, characterized in that, The step of determining the target power spectral density of the vibration platform with the fixed general module at different fixed frequencies in each vibration stage, based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, includes: Based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, the fatigue damage value of the general module at each vibration stage and at each fixed frequency is determined on different test platforms. Based on the fatigue damage values of the general module at different test platforms and the duration of each vibration stage at each fixed frequency, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage is determined.
5. The method according to claim 4, characterized in that, The determination of fatigue damage values of the general module at different test platforms for each vibration stage and at each fixed frequency, based on the initial power spectral density of each test platform, the combination of test platforms mounted in each vibration stage, and the duration of each vibration stage, includes: Based on the initial power spectral density of each test platform and the combination of test platforms mounted in each vibration stage, the stress power spectral density of each vibration stage and each fixed frequency of different test platforms is determined; Based on the stress power spectral density of each vibration stage and each fixed frequency on different test platforms and the duration of each vibration stage, the fatigue damage value of the general module on different test platforms at each vibration stage and each fixed frequency is determined.
6. The method according to claim 4, characterized in that, The step of determining the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage, based on the fatigue damage values of the general module on different test platforms at each vibration stage and at each fixed frequency, and the duration of each vibration stage, includes: From the fatigue damage values of the general module at each vibration stage and at each fixed frequency on different test platforms, determine the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency; Based on the maximum fatigue damage value of the general module at each vibration stage and at each fixed frequency, and the duration of each vibration stage, the target power spectral density of the vibration platform at different fixed frequencies in each vibration stage is determined.
7. The method according to any one of claims 1-3, characterized in that, The step of controlling the vibration platform to conduct vibration tests on the general-purpose module based on the target power spectral density at different fixed frequencies in each vibration stage, and conducting natural environment exposure tests on the general-purpose module, includes: Based on the target power spectral density at the current fixed frequency of each vibration stage, the vibration platform is controlled to conduct a vibration test on the general module, and then a natural environment exposure test is conducted on the general module; the first current fixed frequency is the first fixed frequency among the different fixed frequencies; If the current fixed frequency is not the last fixed frequency among the different fixed frequencies, the next fixed frequency is determined as the new current fixed frequency, and the previous step is repeated until the current fixed frequency is the last fixed frequency among the different fixed frequencies, thus confirming that the combination test of the general module is complete.
8. The method according to any one of claims 1-3, characterized in that, The test platform combination mounted on the general module in each of the vibration stages includes: The general module is mounted on a fixed-wing aircraft platform, helicopter platform, ship platform, highway vehicle platform, and dirt road vehicle platform during the first vibration phase. The general module is mounted on a fixed-wing aircraft platform, helicopter platform, ship platform, and vehicle platform that travels on dirt roads during the second vibration phase. The general module is mounted on a fixed-wing aircraft platform and a helicopter platform during the third vibration phase. The general module is mounted on a fixed-wing aircraft platform during the fourth vibration phase.
9. A combined experimental device for general modules, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the combined testing method of the general module as described in any one of claims 1 to 8.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 8.