Parameter calculation method and device of suspension type microgravity simulation system and electronic equipment

Abstract

The invention provides a suspension type microgravity simulation system parameter calculation method and device and electronic equipment, the suspension type microgravity simulation system comprises a support and a plurality of suspension pieces connected to the support, and each suspension piece comprises an extension spring. The calculation method comprises the following steps: calculating the weight borne by a single suspension piece according to the number of the suspension pieces and the weight of an accessory to be tested, calculating the maximum tension borne by the single suspension piece according to the weight borne by the single suspension piece, and calculating the limit load of the single suspension piece according to the maximum tension borne by the single suspension piece, and the diameter, the spring pitch diameter and the single-circle rigidity of the single extension spring are determined according to the limit load of the single suspension piece. The suspension type microgravity simulation system keeps the low-frequency characteristic, can meet the microgravity simulation requirements of different numbers of gravity unloading points and different vertical suspension lengths, can also adapt to flexible to-be-tested accessories with different loads and different sizes, and is good in adaptability.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of ground microgravity simulation experiments, and particularly relates to a method, a device, and an electronic device for calculating parameters of a suspended microgravity simulation system. Background Art

[0002] With the continuous development of space technology, higher requirements are imposed on the functions and types of future spacecraft. In the field of spaceflight, the application of large flexible appendage disturbance suppression is receiving increasing attention, so the experimental devices required for ground microgravity simulation of large flexible appendages become more important.

[0003] Currently, when conducting ground microgravity simulation experiments on flexible appendage disturbance suppression in China, the commonly used method is the suspension method, whose principle is to perform gravity unloading at limited structural points of the suspended target device. Suspended microgravity simulation can be mainly divided into two categories: passive suspended microgravity simulation and active suspended microgravity simulation. Active suspended microgravity simulation has advantages such as high bandwidth and good rapidity, but there are also problems such as complex configuration, complicated control algorithms, slow response speed, and low unloading accuracy. Passive suspended microgravity simulation is widely used because of its simple configuration, safety and reliability, and can achieve gravity unloading of the suspended target device without complex control algorithms.

[0004] However, due to the relatively complex motion of large flexible appendage disturbance suppression, the flexible appendage is prone to being subjected to large impact loads, and the size range of the flexible appendage is relatively large. When conducting ground microgravity simulation experiments, the existing fixed-length cable-type passive microgravity simulation has the situations that the vertical length and vertical force cannot be adjusted, and the gravity unloading accuracy is relatively low. The counterweight-type passive microgravity simulation cannot withstand impact loads and cannot ensure the improvement of unloading accuracy at low frequencies. If a common spring stiffness is adopted for the spring-type passive microgravity simulation, a large force error will be generated when subjected to impact disturbances, thus affecting the unloading accuracy, and the design method of its spring parameters does not have universality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method, a device, and an electronic device for calculating parameters of a suspended microgravity simulation system, so as to enable the microgravity simulation system to maintain low-frequency characteristics.

[0006] To solve the above technical problems, in a first aspect, the present invention provides a method for calculating parameters of a suspended microgravity simulation system. The suspended microgravity simulation system includes a bracket and a plurality of suspension members connected to the bracket. Each suspension member includes a tension spring, and the method includes: calculating the weight borne by a single suspension member according to the number of suspension members and the weight of the accessory to be measured; calculating the maximum tension borne by a single suspension member according to the weight borne by a single suspension member, and calculating the ultimate load of a single suspension member according to the maximum tension borne by a single suspension member; determining the diameter, mean coil diameter, and single-coil stiffness of a single tension spring according to the ultimate load of a single suspension member.

[0007] Optionally, it further includes: calculating the number of coils of a single tension spring, n = P d ' / k, where n represents the number of coils of the tension spring, P d ' represents the single-coil stiffness of the tension spring, and k represents the stiffness of the tension spring.

[0008] Optionally, the stiffness k of the tension spring is calculated by the following method, k = G' / h, where G' represents the weight of the accessory to be measured, and h represents the working stroke of the tension spring.

[0009] Optionally, the working stroke of the tension spring is calculated by the following method, h = N·G' / (ω·2π) 2 ·M, where N represents the number of tension springs, M represents the mass of the accessory to be measured, and ω represents the natural frequency of the suspended microgravity simulation system.

[0010] Optionally, it further includes: calculating the free length of the tension spring, H0 = (n + 1)d + 2D, where H0 represents the free length of the tension spring, d represents the diameter of the tension spring, and D represents the mean coil diameter of the tension spring.

[0011] Optionally, determining the diameter, mean coil diameter, and single-coil stiffness of the tension spring includes obtaining the diameter, mean coil diameter, and single-coil stiffness of the tension spring by querying a mechanical design manual.

[0012] Optionally, it further includes: calculating the natural frequency of the suspended microgravity simulation system, where ω represents the natural frequency of the suspended microgravity simulation system, K represents the total stiffness of all tension springs in parallel, and M represents the mass of the accessory to be measured.

[0013] Optionally, the total stiffness K of all tension springs in parallel is calculated by the following method, K = N·k·10 3, k = G' / h, where K represents the total stiffness of all parallel tension springs, N represents the number of the tension springs, k represents the stiffness of the tension springs, G' represents the weight of the accessory to be measured, and h represents the working stroke of the tension springs.

[0014] In a second aspect, the present invention provides a parameter calculation device for a suspended microgravity simulation system. The suspended microgravity simulation system includes a bracket and a plurality of suspension members connected to the bracket. Each suspension member includes a tension spring, and the device includes: a first calculation module configured to calculate the weight borne by a single suspension member according to the number of the suspension members and the weight of the accessory to be measured; a second calculation module configured to calculate the maximum tension borne by a single suspension member according to the weight borne by a single suspension member, and calculate the ultimate load of a single suspension member according to the maximum tension borne by a single suspension member; and a determination module configured to determine the diameter, mean coil diameter, and single coil stiffness of a single tension spring according to the ultimate load of a single suspension member.

[0015] In a third aspect, the present invention provides an electronic device, including: a processor and a memory. The memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for calculating the parameters of the suspended microgravity simulation system as described in the first aspect are implemented.

[0016] In a fourth aspect, the present invention provides a readable storage medium. A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method for calculating the parameters of the suspended microgravity simulation system as described in the first aspect are implemented.

[0017] Compared with the prior art, the present invention has the following advantages: it can make the suspended microgravity simulation system maintain low-frequency characteristics, meet the microgravity simulation requirements of different numbers of gravity unloading points and different vertical suspension lengths, and can also adapt to flexible accessories with different loads and different sizes, with good adaptability. Description of the Drawings

[0018] The accompanying drawings are provided to further understand the present application. They are incorporated and constitute a part of the present application. The accompanying drawings show the embodiments of the present application and, together with this specification, serve to explain the principle of the present application. In the accompanying drawings:

[0019] Figure 1 is a schematic structural diagram of a suspended microgravity simulation system in an embodiment of the present invention;

[0020] Figure 2 is a front view of the structure of a suspended microgravity simulation system in an embodiment of the present invention;

[0021] Figure 3It is a side structural view of a suspended microgravity simulation system in an embodiment of the present invention;

[0022] Figure 4 It is a schematic flowchart of a parameter calculation method for a suspended microgravity simulation system in an embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of a parameter calculation device for a suspended microgravity simulation system in an embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of an electronic device shown according to an embodiment of the present invention.

[0025] In the figure:

[0026] 101 - Bracket, 102 - Clamp, 103 - Cross beam, 104 - Slide groove connector, 105 - Suspension cable, 106 - Tension spring, 107 - Lifting member, 108 - Test bench, 109 - Attachment to be measured, 110 - Pulley, 111 - Angle brace. Detailed implementation manners

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for description in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application. For those of ordinary skill in the art, without creative efforts, the present application can also be applied to other similar scenarios based on these drawings. Unless obvious from the language context or otherwise stated, the same reference numerals in the figures represent the same structure or operation.

[0028] As shown in the present application and the claims, unless the context clearly indicates an exceptional situation, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0029] Flowcharts are used in the present application to illustrate the operations performed according to the embodiments of the present application. It should be understood that the operations before or below are not necessarily executed precisely in order. On the contrary, they can be executed in reverse order or simultaneously. At the same time, other operations can be added to these processes, or one or several operations can be removed from these processes.

[0030] This embodiment provides a method for calculating parameters of a suspended microgravity simulation system. The method 400 includes: S410. Calculate the weight borne by a single suspension member according to the number of suspension members and the weight of the accessory to be measured; S420. Calculate the maximum tension borne by a single suspension member according to the weight borne by a single suspension member, and calculate the ultimate load of a single suspension member according to the maximum tension borne by a single suspension member; S430. Determine the diameter, mean diameter, and single-coil stiffness of a single tension spring according to the ultimate load of a single suspension member. The suspended microgravity simulation system includes a bracket, a plurality of suspension members connected to the bracket, and each suspension member includes a tension spring.

[0031] Figures 1 to 3 A suspended microgravity simulation system is shown. Its structure mainly includes a bracket 101. Above the bracket 101, a plurality of cross beams 103 are connected through a chute connecting member 104. Each cross beam 103 is connected with a suspension member through a clamp 102. Below the suspension member, a test accessory 109 (generally a large flexible accessory) can be clamped through a hoisting member 107. Of course, corresponding experimental tables 108, pulleys 110, angle braces 111 and other components can also be provided below the bracket 101 as needed. The suspension member is crucial for maintaining the low-frequency characteristics of the entire microgravity simulation system. The suspension member includes a suspension cable 105 above and a tension spring 106 below. The bracket 101 is used to support and protect the entire suspended microgravity simulation system, and the bracket 101 can be stably supported on the ground through the angle brace 111 and can be moved on the ground through the pulley 110. The suspension cable 105 usually has a fixed length. It is combined with the tension spring 106 to form a suspension member. The length of the suspension member in the vertical direction is adjusted by connecting the hook of the tension spring 106 to the buckle at different positions of the suspension cable 105.

[0032] The bracket 101 is usually made of industrial aluminum profiles. Industrial aluminum profiles are convenient for processing, widely used, low in production cost, and firm and reliable. They can be used as equipment racks for high-strength work. By selecting different models of profiles and using the design principle of the truss structure, a larger load can be carried with a lighter weight of the bracket 101, which can improve the load capacity of the suspended microgravity simulation system. The chute connecting member 104 can move above the bracket 101, and then the cross beam 103 can move on the bracket 101 to adjust the layout of the suspension members. The size of the bracket 101 is not limited, and its size is determined according to the size of the experimental table, the size of the accessory 109 to be measured, and the mass requirements. According to the size and mass requirements of the accessory 109 to be measured, the profile selection, quantity, and layout of the cross beam 103 can be adjusted to meet the hanging requirements of different types of accessories 109 simulated on the ground, improve the load capacity, and effectively ensure the accuracy and precision of the simulation experiment.

[0033] It can be understood that the above Figures 1 to 3The suspended microgravity simulation system shown is an implementation form to which the method of this embodiment is applied. The method of this embodiment can also be applied to other suspended microgravity simulation systems. If other simulation systems also have the suspension members mentioned in this embodiment, the method of this embodiment is still applicable, and this embodiment does not impose relevant restrictions on the suspended microgravity simulation system.

[0034] In this embodiment, in order to maintain the low-frequency characteristics of the suspended microgravity simulation system, effectively suppress the disturbance of impact loads, and make the simulation of the microgravity state of the low-frequency characteristics of large flexible attachments in orbit more accurate, the tension spring 106 in the suspension member needs to meet corresponding parameter conditions. Therefore, the method of this embodiment is implemented in the following manner. First, calculate the weight G' borne by a single suspension member according to the number of suspension members and the weight of the attachment 109 to be measured. If the number of suspension members is N and the mass M (unit: kg) of the attachment 109 to be measured is known, then G' = 9.8·M / N. For example, Figure 1 the simulation system in [example] has 4 suspension members, that is, 4 suspension points, then N = 4. For each suspension member, calculate the maximum tension P borne by a single suspension member according to the weight borne by a single suspension member n = G', and calculate the ultimate load P of a single suspension member according to the maximum tension borne by a single suspension member j = 1.25P n / 0.8. And each suspension member includes a tension spring 106. According to the ultimate load of the above suspension member, the diameter d (unit: mm), the mean coil diameter D (unit: mm) and the single coil stiffness P d ' (unit: N·mm -1 ) of the tension spring can be determined. Using the tension spring 106 with these parameters ensures the low-frequency characteristics of the suspended microgravity simulation system.

[0035] In one example, the number of coils n of a single tension spring 106 can also be calculated, n = P d ' / k, where n represents the number of coils of the tension spring, P d ' represents the single coil stiffness of the tension spring, and k represents the stiffness of the tension spring. After determining the single coil stiffness P d ' of the tension spring 106, the number of coils of a single tension spring 106 can be calculated. Each suspension member has a tension spring 106.

[0036] In one example, the stiffness k of the tension spring 106 is calculated in the following manner, k = G' / h, where G' represents the weight of the attachment 109 to be measured, and h represents the working stroke of the tension spring 106. Further, the working stroke of the tension spring 106 is calculated in the following manner, h = N·G' / (ω·2π)2 ·M, where N represents the number of tension springs 106, M represents the mass of the accessory 109 to be measured, and ω represents the natural frequency of the suspended microgravity simulation system. In this embodiment, when the working stroke h of the tension spring 106 is known, the stiffness k can be directly calculated according to the formula k = G' / h. There is also another case where the working stroke h of the tension spring 106 is unknown, but the natural frequency of the suspended microgravity simulation system is known, then the working stroke h of the tension spring 106 can be calculated according to the formula h = N·G' / (ω·2π) 2 ·M, and then the stiffness k of the tension spring 106 can be calculated.

[0037] In one example, the method of this embodiment can also calculate the free length of the tension spring 106, H0 = (n + 1)d + 2D, where H0 represents the free length of the tension spring 106, d represents the diameter of the tension spring 106, and D represents the mean coil diameter of the tension spring 106. According to the free length of the tension spring 106 and the number of coils of the tension spring 106, the required tension spring 106 can be selected or manufactured to meet the low-frequency characteristic requirements of the suspended microgravity simulation system.

[0038] In one example, determining the diameter, mean coil diameter, and stiffness per coil of the tension spring 106 includes obtaining the diameter, mean coil diameter, and stiffness per coil of the tension spring 106 by querying a mechanical design manual.

[0039] Exemplarily, according to the data characteristics in Mechanical Design Manual - Volume III - Table 11 - 2 - 19, the principle of selecting a value close to P j / N is specified: 1) Principle one: Extract the number with the same first two digits as the calculated P j ; 2) Principle two: Extract all numbers within P j -30 to P j +100; 3) Take the union of principle one and principle two to select and determine parameters such as the diameter, mean coil diameter, and stiffness per coil of the tension spring 106.

[0040] In another implementation, the method of this embodiment can also calculate the natural frequency of the suspended microgravity simulation system, where ω represents the natural frequency of the suspended microgravity simulation system, K represents the total stiffness of all tension springs 106 in parallel, and M represents the mass of the accessory 109 to be measured. The method of this embodiment can not only obtain the parameters of the tension spring 106, and calculate the free length and the number of coils of the required tension spring 106 according to the parameters of the tension spring 106. It can also calculate the natural frequency of the suspended microgravity simulation system when the natural frequency of the suspended microgravity simulation system is unknown. Further, the total stiffness of all tension springs 106 in parallel is calculated by the following method, K = N·k·103 , k = G' / h, where K represents the total stiffness of all parallel tension springs 106, N represents the number of tension springs 106, k represents the stiffness of the tension spring 106, G' represents the weight of the accessory 109 to be measured, and h represents the working stroke of the tension spring 106.

[0041] Exemplarily, the method of this embodiment can be implemented through MATLB - GUI, which mainly includes three parts. The first part is custom parameter input, including the mass of the accessory 109 to be measured and the number of suspension parts. The second part is requirement input, and there are mainly two types of requirement inputs. One is to calculate the natural frequency of the simulation system according to the working stroke of the tension spring 106, and the tension spring parameters that meet the condition that the frequency of the simulation system is less than 0.5 Hz can be obtained. The other is to calculate the working stroke of the tension spring 106 given the natural frequency of the simulation system, and the simulation system frequency can be customized to determine the spring parameters. The third part is the parameter output of the tension spring 106, using the theoretical parameters to guide engineering practice.

[0042] Specifically, first, calculate the natural frequency of the parameters of the suspended microgravity simulation system according to the working stroke of the tension spring, including:

[0043] Customize and input the mass M (kg) of the accessory to be measured (large flexible accessory), the number of suspension points N (pieces) of the microgravity simulation system, and the working stroke h (mm) of the tension spring.

[0044] (1) Calculate the weight G' borne by each suspension part (suspension point): G' = 9.8·M / N;

[0045] (2) The stiffness k of the tension spring at the single - suspension - point position: k = G' / h;

[0046] (3) The total stiffness K of the tension springs in parallel at multiple suspension points: K = N·k·10 3 ;

[0047] (4) The natural frequency ω of the low - frequency suspension system of the suspended microgravity simulation system:

[0048] (5) The maximum tension P borne by the tension spring at the single - suspension point n : P n = G';

[0049] (6) The ultimate load P of the tension spring at the single - suspension point during operation j : P j = 1.25P n / 0.8;

[0050] (7) According to the calculated ultimate load, take values from the Mechanical Design Handbook - Volume III - Table 11 - 2 - 19 to determine the diameter d, mean diameter D of the tension spring, and the stiffness per single coil Pd ' 。

[0051] It should be noted that according to the data characteristics in the Mechanical Design Manual - Volume 3 - Table 11 - 2 - 19, it is stipulated to take the value principle similar to P j / N: 1) Principle 1: Extract the number with the same first two digits as the calculated P j ; 2) Principle 2: Extract all numbers within P j -30 to P j +100; 3) Take the union of Principle 1 and Principle 2.

[0052] (8) Calculate the number of turns n of the extension spring: n = P d ' / k;

[0053] (9) Calculate the free length H0 of the extension spring: H0 = (n + 1)d + 2D.

[0054] II. Calculating the working stroke of the extension spring based on the natural frequency of the suspended microgravity simulation system, including:

[0055] Customize and input the mass M (kg) of the accessory to be measured (large flexible accessory), the number of suspension points N (pieces) of the microgravity simulation system, and the natural frequency ω of the suspended microgravity simulation system.

[0056] (1) Calculate the weight G' borne by each suspension point: G' = 9.8·M / N;

[0057] (2) The working stroke h of the extension spring at a single suspension point: h = N·G' / (ω·2π) 2 ·M;

[0058] (3) The stiffness k of the extension spring at the single suspension point position: k = G' / h;

[0059] (4) The total stiffness K of the extension springs in parallel at multiple suspension points: K = N·k;

[0060] (5) The maximum tensile force P n borne by the extension spring at a single suspension point: P n = G' + 30;

[0061] (6) The ultimate load P j of the extension spring at a single suspension point working: P j = 1.25P n / 0.8;

[0062] (7) According to the calculated ultimate load, take values from the Mechanical Design Manual - Volume 3 - Table 11 - 2 - 19 to determine the diameter d of the extension spring, the mean diameter D of the spring, and the stiffness P of a single coil d '。

[0063] It should be noted that, according to the data characteristics in the Mechanical Design Manual - Volume III - Table 11 - 2 - 19, it is stipulated to take the value principle similar to P j / N: 1) Principle 1: Extract the number whose first two digits are the same as those calculated for P j ; 2) Principle 2: Extract all numbers within the range of P j - 30 to P j +100; 3) Finally, take the union of Principle 1 and Principle 2.

[0064] (8) Calculate the number of turns n of the tension spring: n = P d ' / k;

[0065] (9) Calculate the free length H0 of the tension spring: H0 = (n + 1)d + 2D.

[0066] The parameter calculation method of the suspended microgravity simulation system in this embodiment can achieve gravity unloading for the accessory to be measured according to the actual ground simulation requirements of the accessory to be measured, achieve low sling force error and large simulation working space, effectively suppress the disturbance of impact load, and the microgravity simulation effect is closer to the low - frequency state of the large flexible accessory working in orbit, with high gravity unloading accuracy.

[0067] Another embodiment of the present invention provides a parameter calculation device 500 for a suspended microgravity simulation system. The suspended microgravity simulation system includes a bracket, and a plurality of suspension members connected to the bracket. Each suspension member includes a tension spring, and includes: a first calculation module 501 configured to calculate the weight borne by a single suspension member according to the number of suspension members and the weight of the accessory to be measured; a second calculation module 502 configured to calculate the maximum tension borne by a single suspension member according to the weight borne by a single suspension member, and calculate the ultimate load of a single suspension member according to the maximum tension borne by a single suspension member; a determination module 503 configured to determine the diameter, mean diameter and single - turn stiffness of a single tension spring according to the ultimate load of a single suspension member.

[0068] In an example, the device 500 further includes a third calculation module configured to calculate the number of turns n of a single tension spring, n = P d ' / k, where n represents the number of turns of the tension spring, P d ' represents the single - turn stiffness of the tension spring, and k represents the stiffness of the tension spring.

[0069] In an example, the stiffness k of the tension spring is calculated by the following method, k = G' / h, where G' represents the weight of the accessory to be measured, and h represents the working stroke of the tension spring.

[0070] In one example, the working stroke of the tension spring is calculated as follows: h = N·G' / (ω·2π) 2 ·M, where N represents the number of tension springs, M represents the mass of the accessory to be measured, and ω represents the natural frequency of the suspended microgravity simulation system.

[0071] In one example, the device 500 further includes a fourth calculation module configured to calculate the free length of the tension spring, H0 = (n + 1)d + 2D, where H0 represents the free length of the tension spring, d represents the diameter of the tension spring, and D represents the mean diameter of the tension spring.

[0072] In one example, determining the diameter, mean diameter, and single - coil stiffness of the tension spring includes obtaining the diameter, mean diameter, and single - coil stiffness of the tension spring by querying a mechanical design manual.

[0073] In one example, the device 500 further includes a fifth calculation module configured to calculate the natural frequency of the suspended microgravity simulation system, where ω represents the natural frequency of the suspended microgravity simulation system, K represents the total stiffness of all parallel - connected tension springs, and M represents the mass of the accessory to be measured.

[0074] In one example, the total stiffness of all parallel - connected tension springs is calculated as follows: K = N·k·10 3 , k = G' / h, where K represents the total stiffness of all parallel - connected tension springs, N represents the number of tension springs, k represents the stiffness of the tension spring, G' represents the weight of the accessory to be measured, and h represents the working stroke of the tension spring.

[0075] Details of other operations performed by each module in this embodiment can be referred to the foregoing embodiments and will not be elaborated here.

[0076] The suspended microgravity simulation system parameter calculation device in this embodiment realizes gravity unloading for the accessory to be measured according to the actual ground simulation requirements of the accessory to be measured, achieves low sling - force error and large simulation working space, effectively suppresses the disturbance of impact load, the effect of microgravity simulation is closer to the low - frequency state of the large flexible accessory working in orbit, and the gravity unloading accuracy is high.

[0077] A suspended microgravity simulation system parameter calculation device in an embodiment of the present application can be a device, or a component, an integrated circuit, or a chip in a terminal. A suspended microgravity simulation system parameter calculation device in an embodiment of the present application can be a device with an operating system. The operating system can be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0078] The present application also provides an electronic device, including: a memory for storing programs or instructions executable by a processor; and a processor for executing the above programs or instructions to implement each process of the embodiment of the method for calculating parameters of the suspended microgravity simulation system, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0079] Figure 6 FIG. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention. The electronic device 600 may include an internal communication bus 601, a processor 602, a read-only memory (ROM) 603, a random access memory (RAM) 604, and a communication port 605. When applied to a personal computer, the electronic device 600 may further include a hard disk 606. The internal communication bus 601 may enable data communication between components of the electronic device 600. The processor 602 may make judgments and issue prompts. In some embodiments, the processor 602 may be composed of one or more processors. The communication port 605 may enable data communication between the electronic device 600 and the outside. In some embodiments, the electronic device 600 may send and receive information and data from a network through the communication port 605. The electronic device 600 may also include different forms of program storage units and data storage units, such as the hard disk 606, the read-only memory (ROM) 603, and the random access memory (RAM) 604, which can store various data files used for computer processing and / or communication, as well as possible programs or instructions executed by the processor 602. The result processed by the processor 602 is transmitted to the user device through the communication port 605 and displayed on the user interface.

[0080] The above method for calculating parameters of the suspended microgravity simulation system may be implemented as a computer program, stored in the hard disk 606, and may be recorded in the processor 602 for execution to implement any one of the methods for calculating parameters of the suspended microgravity simulation system in the present application.

[0081] The embodiment of the present application also provides a readable storage medium, on which programs or instructions are stored. When the programs or instructions are executed by a processor, each process of the embodiment of the method for calculating parameters of the suspended microgravity simulation system is implemented, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0082] Obviously, for those skilled in the art, the above invention disclosure is only an example and does not constitute a limitation to the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are proposed in the present application, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of the present application.

[0083] Although the present application has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions can be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A method for calculating parameters of a suspended microgravity simulation system, the suspended microgravity simulation system comprising a bracket, and a plurality of suspension members connected to the bracket, each suspension member including a tension spring, characterized in that, Including: Calculating the weight borne by a single suspension member according to the number of the suspension members and the weight of the accessory to be measured; Calculating the maximum tensile force borne by a single suspension member according to the weight borne by a single suspension member, and calculating the ultimate load of a single suspension member according to the maximum tensile force borne by a single suspension member; Determining the diameter, mean coil diameter and single coil stiffness of a single tension spring according to the ultimate load of a single suspension member.

2. The parameter calculation method of the suspended microgravity simulation system according to claim 1, characterized in that, Further including: Calculate the number of coils of a single said tension spring, n = P' d / k, where n represents the number of coils of the said tension spring, P' d represents the stiffness per coil of the said tension spring, and k represents the stiffness of the said tension spring.

3. The parameter calculation method of the suspended microgravity simulation system according to claim 2, characterized in that, The stiffness k of the tension spring is calculated by the following formula: k = G' / h, where G' represents the weight of the accessory to be measured and h represents the working stroke of the tension spring.

4. The parameter calculation method of the suspended microgravity simulation system according to claim 3, characterized in that The working stroke of the tension spring is calculated by the following formula: h = N·G' / (ω·2π) 2 ·M, where N represents the number of the tension springs, M represents the mass of the accessory to be measured, and ω represents the natural frequency of the suspended microgravity simulation system.

5. The parameter calculation method of the suspended microgravity simulation system according to claim 2, characterized in that, Further including: Calculating the free length of the tension spring, H0 = (n + 1)d + 2D, where H0 represents the free length of the tension spring, d represents the diameter of the tension spring, and D represents the mean coil diameter of the tension spring.

6. The parameter calculation method of the suspended microgravity simulation system according to claim 1, characterized in that Determining the diameter, mean coil diameter and single coil stiffness of the tension spring includes obtaining the diameter, mean coil diameter and single coil stiffness of the tension spring by querying a mechanical design manual.

7. The parameter calculation method of the suspended microgravity simulation system according to claim 1, characterized in that, Further including: Calculate the natural frequency of the suspended microgravity simulation system, where ω represents the natural frequency of the suspended microgravity simulation system, K represents the total stiffness of all tensile springs in parallel, and M represents the mass of the accessory to be measured.

8. The parameter calculation method of the suspension type microgravity simulation system according to claim 7, characterized in that Calculate the total stiffness of all tension springs in parallel in the following way, K = N·k·10 3 , k = G' / h, where K represents the total stiffness of all tension springs in parallel, N represents the number of the tension springs, k represents the stiffness of the tension springs, G' represents the weight of the accessory to be measured, and h represents the working stroke of the tension springs.

9. A parameter calculation device for a suspended microgravity simulation system, the suspended microgravity simulation system comprising a bracket, a plurality of suspension members connected to the bracket, each suspension member including a tension spring, characterized in that, Including: A first calculation module configured to calculate the weight borne by a single suspension member according to the number of the suspension members and the weight of the accessory to be measured; A second calculation module configured to calculate the maximum tensile force borne by a single suspension member according to the weight borne by a single suspension member, and calculate the ultimate load of a single suspension member according to the maximum tensile force borne by a single suspension member; A determination module configured to determine the diameter, mean coil diameter and single coil stiffness of a single tension spring according to the ultimate load of a single suspension member.

10. An electronic device, characterized in that, Including: A processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for calculating the parameters of the suspended microgravity simulation system according to any one of claims 1-8 are implemented.

11. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method for calculating the parameters of the suspended microgravity simulation system according to any one of claims 1-8 are implemented.

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