Solar wing torsional frequency adjustment device and application thereof

Abstract

The application provides a solar wing torsional frequency adjusting device and application thereof, including an adjusting module, the top of the adjusting module is provided with a counterweight, the counterweight is provided with a screw mounting hole, the bottom of the adjusting module is provided with a C-shaped beam of carbon fiber material, the C-shaped beam is provided with a counterweight mounting threaded hole, the adjusting module is installed on the base plate frame of the solar wing through gluing or other methods, the adjusting method includes the following steps: creating a torsional frequency simulation analysis model of the solar wing, extracting the first-order torsional frequency of the solar wing, calculating the working frequency of the driving mechanism, installing the adjusting device and iterating the torsional frequency simulation analysis model of the solar wing. The application solves the problem that the first-order torsional frequency of the solar wing is close to or coupled with the driving frequency, can be applied to the adjustment of the torsional frequency of the solar wing, greatly avoids the problem that the solar wing and the driving mechanism are coupled to resonate, can meet the urgent need of adjusting the torsional frequency of the solar wing, has important scientific value for the system design of the solar wing.

Description

Technical Field

[0001] This invention relates to the field of solar array deployment frequency adjustment devices, and particularly to a solar array torsion frequency adjustment device and its application. Background Technology

[0002] With the rapid development of my country's aerospace field, satellites are becoming increasingly diverse, and the size of solar arrays is becoming more varied. However, the types of drive mechanisms that propel the solar arrays for solar orientation are relatively limited. This situation inevitably leads to the first-order torsional frequency of the solar array approaching, or even coupling with, the operating frequency of the drive mechanism. Once the first-order torsional mode is triggered by external disturbance torque, it can, at best, affect the normal operation of the spacecraft, and at worst, cause the satellite to lose its operational capability and fail in mission. Therefore, inventing a device and method for adjusting the torsional frequency of the solar array is of great significance. Summary of the Invention

[0003] The purpose of this invention is to provide a device for adjusting the torsional frequency of a solar array and its application, so as to solve the problem of coupling between the first-order torsional frequency and the driving frequency of the solar array.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: to provide a solar array torsion frequency adjustment device, which is composed of several adjustment modules;

[0005] The adjustment module includes a C-shaped beam and a counterweight block fixed to the C-shaped beam;

[0006] The adjustment module is installed on the base plate frame of the solar array and changes the torsional frequency of the solar array by adding counterweights.

[0007] Furthermore, each adjustment module has 5 counterweights.

[0008] Furthermore, the counterweight is provided with screw mounting holes, and the C-shaped beam is provided with counterweight mounting threaded holes. The counterweight and the C-shaped beam are connected by screws.

[0009] Furthermore, the C-shaped beam is made of carbon fiber.

[0010] Another technical solution of the present invention provides an application of the above-mentioned solar wing torsion frequency adjustment device, applied to a solar wing torsion frequency adjustment method, comprising the following steps:

[0011] S1. Based on the design status of the solar array, create a simulation analysis model of the solar array's torsional frequency;

[0012] S2. Based on the simulation results, extract the first-order torsional frequency of the solar array;

[0013] S3. Calculate the operating frequency of the drive mechanism based on its design status;

[0014] S4. Determine whether the result of the first-order torsional frequency of the solar array in S2 is coupled with the working frequency of the drive mechanism in S3. If they are not coupled, end the process; if they are coupled, proceed to step S5.

[0015] S5. After installing the torsion frequency adjustment device on the solar panel frame, return to step S1 until the process ends.

[0016] The beneficial effects of the solar array torsion frequency adjustment device and its application provided by this invention are as follows:

[0017] This invention solves the problem of the first-order torsional frequency of the solar array being close to or coupled with the driving frequency, making it applicable to the adjustment of the solar array's torsional frequency and greatly avoiding the resonance problem caused by frequency coupling between the solar array and the driving mechanism. Therefore, this adjustment device can meet the urgent need to adjust the torsional frequency of the solar array and has important scientific value for the system design of solar arrays. Attached Figure Description

[0018] The invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 A schematic diagram of the adjusting device created in this invention;

[0020] Figure 2 A schematic diagram of the C-shaped beam created for this invention;

[0021] Figure 3 A schematic diagram of the structure of the counterweight created for this invention;

[0022] Figure 4 A schematic diagram illustrating the structure of the solar panel frame for this invention;

[0023] Figure 5 The flowchart of the adjustment method created by this invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Adjustment Module

[0026] 2 counterweights

[0027] 3 mounting holes

[0028] 4 C-shaped beams

[0029] 5 Threaded holes

[0030] 6 screws

[0031] 7. Solar wing. Detailed Implementation

[0032] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the solar array torsion frequency adjustment device and its application proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0033] The core idea of ​​this invention is that it solves the problem of the first-order torsional frequency of the solar array being close to or coupled with the driving frequency, making it applicable to the adjustment of the solar array's torsional frequency and greatly avoiding the resonance problem caused by frequency coupling between the solar array and the driving mechanism. Therefore, this adjustment device can meet the urgent need to adjust the torsional frequency of the solar array and has important scientific value for the system design of solar arrays.

[0034] like Figure 1-4 As shown, the present invention provides a device for adjusting the torsional frequency of a solar array, including an adjustment module 1. The top of the adjustment module 1 is provided with 5 counterweights 2, each counterweight 2 having a screw mounting hole 3. The bottom of the adjustment module 1 is provided with a C-shaped beam 4, the C-shaped beam 4 having 5 counterweight mounting threaded holes 5. The C-shaped beam is made of carbon fiber material. The counterweights 2 and the C-shaped beam 4 are connected by screws 6.

[0035] The adjustment module 1 of the device of the present invention is installed on the base plate frame of the solar panel 7 by adhesive bonding.

[0036] The present invention also provides a method for adjusting the torsional frequency of a solar array, comprising:

[0037] S1. Based on the design status of the solar array, create a simulation analysis model of the solar array's torsional frequency;

[0038] S2. Based on the simulation results, extract the first-order torsional frequency of the solar array;

[0039] S3. Calculate the operating frequency of the drive mechanism based on its design status;

[0040] S4. Determine whether the result of the first-order torsional frequency of the solar array in S2 is coupled with the working frequency of the drive mechanism in S3. If they are coupled, proceed to step S5; if they are not coupled, the adjustment of the solar array torsional frequency is completed.

[0041] S5. After installing the torsional frequency adjustment device on the solar panel frame, return to S1 to re-establish the torsional frequency simulation analysis model of the solar panel.

[0042] In this embodiment, the adjustment device adds counterweight to the frame of the solar array by setting a counterweight block, thereby changing the torsional frequency of the solar array; of course, in other embodiments, counterweight can be added to the frame of the solar array through other structural methods, and no limitation is made here.

[0043] The contents not described in detail in this specification are prior art known to those skilled in the art. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A device for adjusting the torsional frequency of a solar array, characterized in that, It consists of several adjustment modules; The adjustment module includes a C-shaped beam and a counterweight block fixed to the C-shaped beam; The adjustment module is installed on the base plate frame of the solar panel and changes the torsional frequency of the solar panel by adding counterweights. Each adjustment module has 5 counterweights. The counterweight is provided with screw mounting holes, and the C-shaped beam is provided with counterweight mounting threaded holes. The counterweight and the C-shaped beam are connected by screws. The C-shaped beam is made of carbon fiber.

2. The application of the solar array torsion frequency adjustment device as described in claim 1, characterized in that, The method for adjusting the torsional frequency of solar panels includes the following steps: S1. Based on the design status of the solar array, create a simulation analysis model of the solar array's torsional frequency; S2. Based on the simulation results, extract the first-order torsional frequency of the solar array; S3. Calculate the operating frequency of the drive mechanism based on its design status; S4. Determine whether the result of the first-order torsional frequency of the solar array in S2 is coupled with the working frequency of the drive mechanism in S3. If they are not coupled, end the process. If coupling occurs, proceed to step S5; S5. After installing the torsion frequency adjustment device on the solar panel frame, return to step S1 until the process ends.

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