Mortise and tenon joint structure reliability test system for cubesat combination

Abstract

The invention relates to a novel reliability test system which is used for evaluating the performance of a mortise and tenon connection structure used by a cubesat combination, and the test system realizes efficient and accurate performance evaluation through a mortise and tenon buckle splicing test structure and an overall test structure and by using a vibration sensor technology. A traditional tenon-and-mortise connection structure test generally uses a static stretching test method, and actual use conditions are difficult to simulate. Under the ground simulation service condition, vibration sensor signals are collected in real time, and it is ensured that the test result is closer to the actual performance. The modular structure can easily adapt to mortise and tenon joints of different sizes and types, so that the test process is highly customizable. The vibration sensor technology plays a key role in the invention and allows real-time monitoring of the vibration response of the connection structure. By recording and analyzing the vibration data, potential problems, such as fatigue cracks or signs of failure, can be detected. This contributes to early recognition of potential reliability issues, thereby improving structural quality and safety. In conclusion, the invention provides an innovative tenon-and-mortise structure reliability test system, the test process is more accurate due to the application of the vibration sensor technology, and the reliability of the tenon-and-mortise connection structure is expected to be improved in multiple fields including furniture manufacturing, constructional engineering and other application fields.

Description

Technical Field

[0001] The present invention relates to the field of reliability testing of mortise and tenon structures, and particularly to a system and method for testing the mortise and tenon connection structure in a CubeSat assembly. Background Art

[0002] The mortise and tenon connection structure is an ancient and effective method for connecting different components, commonly used in woodworking and furniture manufacturing. This connection is achieved by inserting the tenon of one component into the mortise of another component. The mortise and tenon structure is renowned for its strong stability and durability and has been widely used in various applications, including furniture, architecture, and engineering projects.

[0003] However, although the mortise and tenon connection structure is very reliable in principle, its actual reliability still needs to be systematically tested and verified. These tests typically include evaluations of the load-bearing capacity, durability, anti-twist ability, and other key performance indicators of the connection. In specific applications, such as the CubeSat assembly structure, the mortise and tenon connection structure is required to have a high degree of reliability to ensure the stability and safety of the system.

[0004] Existing testing methods may have some limitations, including insufficiently simulating actual service conditions, time-consuming and expensive testing processes, etc. Therefore, it is necessary to develop a new reliability testing system to more effectively evaluate the performance of mortise and tenon connections in the CubeSat assembly structure, in order to improve product quality and reliability.

[0005] The present invention aims to solve these problems and provides a reliability testing system for the mortise and tenon structure of a CubeSat assembly, which can provide an accurate, efficient, and economical testing method to ensure that the performance of the mortise and tenon connection structure meets the requirements. Summary of the Invention

[0006] To address the deficiencies of the prior art, the present invention provides a testing device for the mortise and tenon structure of a CubeSat assembly;

[0007] The technical solution of the present invention to solve the above technical problems is to design an experimental device for the influence of different connection structures, characterized in that the experimental device includes a base part, a testing part, sensors, and a signal acquisition device;

[0008] The base is composed of a support frame and a fixed base. The support frame is cut from a whole piece of material to form a hollow quadrilateral structure; a pair of fixed bases are provided and symmetrically arranged on the left and right sides of the support frame through bolt connections;

[0009] The testing part includes a mortise and tenon splicing test piece and an overall test piece, which are arranged on the support frame. The mortise and tenon splicing test piece and the overall test piece are arranged side by side on the upper and lower sides of the support frame, and are fixed to the support frame through bolts on the upper and lower sides;

[0010] The mortise and tenon splicing test piece and the overall test piece are each provided with sensors at the same positions, which can collect vibration information at the maximum vibration position of the test piece. The sensors are electrically connected to the signal acquisition device;

[0011] The signal acquisition device is a computer with data acquisition software built in. The data acquisition software can automatically record the acceleration-time values and their change rules.

[0012] The present invention has the following beneficial effects compared with the prior art:

[0013] The present invention allows for a comprehensive and accurate assessment of the performance of mortise and tenon connection structures. Through pre-detection, the mortise and tenon structures can be further improved and optimized;

[0014] By introducing vibration sensors, the system provides real-time monitoring and feedback, which helps to detect problems in mortise and tenon connection structures, such as fatigue cracks or signs of failure, and provides more accurate test results;

[0015] The mortise and tenon test structure of the present invention is modular and can adapt to different sizes and types of mortise and tenon connections, enabling the test procedure to be easily customized to meet different requirements and specifications;

[0016] Furthermore, this invention can provide a more reliable, economical, and safe test method for mortise and tenon connection structures in multiple fields, thereby improving product quality and reliability, reducing costs, and enhancing the stability and safety of structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the mortise and tenon connection of the existing cube satellite combined mortise and tenon structure;

[0018] Figure 2 Overall schematic diagram of a reliability test system for a mortise and tenon structure for cube satellite combination according to the present invention;

[0019] Figure 3 Front view of the main body of the test structure of a reliability test system for a mortise and tenon structure for cube satellite combination according to the present invention;

[0020] Figure 4 Schematic diagram of the mortise and tenon splicing structure of a mortise and tenon splicing test piece in an embodiment of a reliability test system for a mortise and tenon structure for cube satellite combination according to the present invention;

[0021] In the figure: 1 - Cube satellite combination; 101 - Mortise and tenon snap connection; 2 - Base part; 201 - Fixed base; 202 - Support frame; 3 - Mortise and tenon splicing test piece; 301 - Tenon; 302 - Mortise; 4 - Overall test piece; 5 - Vibration sensor; 6 - Signal acquisition device. DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, in combination with the accompanying drawings and embodiments, we will describe in detail the specific implementation manners of the present invention.

[0023] The present invention provides a reliability test system for tenon - mortise structures, which is specifically used to test the tenon - mortise connection structures used in combination with cube satellites. This test system includes the following components: a base part 2, tenon - mortise splicing test pieces 3, integral test pieces 4, vibration sensors 5, and a signal acquisition device 6.

[0024] The base part 2 is composed of a fixed base 201 and a support frame 202. The fixed base 201 is symmetrically arranged on both sides of the support frame 202 and is firmly fixed by bolts. In addition, the fixed base 201 and the support frame 202 are connected by four bolts to limit the deformation of the support frame 202.

[0025] The tenon - mortise splicing test pieces 3 and the integral test pieces 4 are arranged side by side on the support frame and are fixedly connected to the support frame 202 by bolts at both ends of the test pieces.

[0026] It should be noted that the tenon - mortise splicing test piece 3 is made by simplifying the tenon - mortise snap connection 101 in the cube satellite combination 1.

[0027] Specifically, the tenon - mortise splicing test piece 3 is composed of a tenon 301 and a mortise 302.

[0028] The tenon - mortise splicing test piece 3 and the integral test piece 4 have the same material size, which enables us to conveniently conduct comparative analysis to evaluate the performance of the tenon - mortise splicing structure in the tenon - mortise splicing test piece 3.

[0029] The vibration sensors 5 are respectively installed at the middle positions of the tenon - mortise splicing test pieces 3 and the integral test pieces 4 by bolts. These vibration sensors 5 are connected to the signal acquisition device 6 to record and analyze vibration data.

[0030] The signal acquisition device 6 is a computer with data acquisition software built - in. This software can automatically record the acceleration - time values and their change rules to provide accurate test data.

[0031] The vibration sensor selects the EVAL - ADXL356CZ sensor to achieve high - precision data acquisition.

Claims

1. A system for testing the mortise and tenon joint structure in a CubeSat combination, comprising a base part, which is composed of a support frame and a fixed base, wherein the support frame forms a hollow square structure, and the fixed base is symmetrically arranged on the left and right sides of the support frame.

2. A testing part, comprising a mortise and tenon splicing test piece and an overall test piece, which are respectively arranged side by side on the upper and lower sides of the support frame and fixed to the support frame by bolts.

3. Sensors, which are respectively located at the same positions of the mortise and tenon splicing test piece and the overall test piece, for collecting vibration information.

4. A signal acquisition device, comprising a computer with built-in data acquisition software, capable of automatically recording the acceleration-time values and their variation rules.

5. As claimed in claim 1, wherein the support frame of the base is cut from a whole piece of material.

6. As claimed in claim 1, wherein the sensors are electrically connected to the signal acquisition device for real-time monitoring and recording of vibration information.

7. As claimed in claim 1, wherein the mortise and tenon splicing test piece and the overall test piece have a modular structure and can adapt to different sizes and types of mortise and tenon joint structures.

8. In claim 1, there is provided a system for testing the mortise and tenon joint structure, which is particularly applicable to CubeSat combinations; the system comprises a base part, a testing part, sensors and a signal acquisition device; the base part is composed of a support frame and a fixed base, the support frame forms a hollow square structure, and the fixed base is symmetrically arranged on the left and right sides of the support frame; the testing part comprises a mortise and tenon splicing test piece and an overall test piece, which are arranged side by side on the upper and lower sides of the support frame and fixed to the support frame by bolts. The sensors are respectively located at the same positions of the mortise and tenon splicing test piece and the overall test piece for collecting vibration information; the signal acquisition device comprises a computer with built-in data acquisition software, capable of automatically recording the acceleration-time values and their variation rules.

9. Claim 2 depends on claim 1, emphasizing the material and manufacturing method of the support frame.

10. Claim 3 emphasizes the electrical connection between the sensors and the signal acquisition device to achieve real-time monitoring and recording.

11. Claim 4 emphasizes the modular structure of the testing part, enabling it to adapt to different types of mortise and tenon joint structures.

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