Design method of unconstrained suspension system with center of mass automatic alignment function

Abstract

The invention discloses a design method of an unconstrained suspension system with the center of mass automatic alignment function. The system comprises a three-degree-of-freedom rotating follow-up module, a fastening module, a center of mass alignment module and a data acquisition and control module. The three-degree-of-freedom rotating follow-up module can guarantee that a spacecraft conducts approximately unconstrained pitching, yawing and rolling motion under low friction interference; the fastening module can adjust the degree of the suspension system for clamping the spacecraft under the action of a motor; the center of mass alignment module can be matched with the fastening module to automatically align the center of mass of the spacecraft and automatically clamp the spacecraft when the structure of the spacecraft changes and guarantee that an equivalent suspension point always coincides with the center of mass; the data acquisition and control module is used for system signal transmission and coordination control of the modules and achieves the automatic alignment of the center of mass and unconstrained suspension of the spacecraft of the variable structure. The method has the advantages that three-rotational-degree-of-freedom motion of the spacecraft of the variable structure can be guaranteed only through single-point suspension, no coupling exists in the system, the system is easy to control, the center of the mass can be automatically aligned, and clamping force can be automatically adjusted.

Description

Technical field

[0001] The invention belongs to the technical field of ground verification of spacecraft navigation, guidance and control systems, and in particular relates to a method for realizing a center of mass automatic alignment unconstrained suspension system for ground verification of variable-structure spacecraft. Background technique

[0002] Aerospace engineering is a high-risk, high-investment, high-reward, highly complex and high-precision system engineering. Its development level determines whether it can seize the high-tech commanding heights and maximize the use of space resources. There is no doubt that it is imminent to actively carry out aerospace technology research in our country. However, the space environment is extremely harsh. In order to successfully complete space missions, sufficient experiments must be carried out on the ground. Therefore, various space agencies at home and abroad attach great importance to the experimental verification of spacec...

Examples

Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings: the three-degree-of-freedom rotation follow-up module uses bearings to convert sliding into rolling, and realizes the flexible follow-up of the three rotational degrees of freedom of the spacecraft; The self-locking property of the thread adjusts the magnitude of the applied force; the center of mass alignment module uses the center of mass of the spacecraft to coincide with the equivalent suspension point to maintain a state of balance at any time, and under the coordinated control of the relevant data acquisition and control module, together with the fastening module The alignment of the center of mass is completed without affecting the existing attitude of the spacecraft, ensuring that the suspension point always coincides with the center of mass of the spacecraft, and the gravity of the spacecraft does not affect the dynamic characteristics of the spacecraft.

[0043]...

Technical field

[0001] The invention belongs to the technical field of ground verification of spacecraft navigation, guidance and control systems, and in particular relates to a method for realizing a center of mass automatic alignment unconstrained suspension system for ground verification of variable-structure spacecraft. Background technique

[0002] Aerospace engineering is a high-risk, high-investment, high-reward, highly complex and high-precision system engineering. Its development level determines whether it can seize the high-tech commanding heights and maximize the use of space resources. There is no doubt that it is imminent to actively carry out aerospace technology research in our country. However, the space environment is extremely harsh. In order to successfully complete space missions, sufficient experiments must be carried out on the ground. Therefore, various space agencies at home and abroad attach great importance to the experimental verification of spacec...

Examples

Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings: the three-degree-of-freedom rotation follow-up module uses bearings to convert sliding into rolling, and realizes the flexible follow-up of the three rotational degrees of freedom of the spacecraft; The self-locking property of the thread adjusts the magnitude of the applied force; the center of mass alignment module uses the center of mass of the spacecraft to coincide with the equivalent suspension point to maintain a state of balance at any time, and under the coordinated control of the relevant data acquisition and control module, together with the fastening module The alignment of the center of mass is completed without affecting the existing attitude of the spacecraft, ensuring that the suspension point always coincides with the center of mass of the spacecraft, and the gravity of the spacecraft does not affect the dynamic characteristics of the spacecraft.

[0043]...

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