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Dynamic adjustment device for center of mass of spacecraft return capsule

A dynamic adjustment and return capsule technology, applied in the aerospace field, can solve problems such as unpredictability and rescue, lack of ability to adjust the center of mass of the entire cabin in orbit, etc., and achieve the effect of not being easy to vibrate, adjusting the center of mass precisely, and having high application value

Active Publication Date: 2021-06-18
BEIJING SPACE TECH RES & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The return capsule generally does not have the ability to adjust the center of mass of the entire cabin on orbit. When this problem occurs, it is impossible to predict and rescue it.

Method used

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  • Dynamic adjustment device for center of mass of spacecraft return capsule
  • Dynamic adjustment device for center of mass of spacecraft return capsule

Examples

Experimental program
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Effect test

Embodiment approach

[0031] According to an embodiment of the present invention, the ring slide rail unit 1 includes a first slide rail 101 and a second slide rail 102 . The hollow annular support pipe is installed at the bottom inside the return cabin. Both the first slide rail 101 and the second slide rail 102 are circular slide rails, and are coaxially arranged inside the hollow annular support tube. In this embodiment, the first slide rail 101 and the second slide rail 102 are on the same plane, and the diameter of the second slide rail 102 is smaller than the diameter of the first slide rail 101 .

[0032] According to an embodiment of the present invention, the adjustment module 2 includes two weights 201, both of which are connected to the first slide rail 101 and the second slide rail 102 at the same time, and can slide circumferentially along the two slide rails. Such as figure 1 As shown, in this embodiment, the material of the weight 201 is lead, the shape is a cylinder, and it is ben...

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Abstract

The invention relates to a dynamic adjustment device for the center of mass of a spacecraft return cabin, comprising: an annular slide rail unit (1) arranged at the bottom of the return capsule; an adjustment module (2) slidably installed on the annular slide rail unit (1) Above: a driving device installed on the adjustment module (2), used to drive the adjustment module (2) to slide on the annular slide rail unit (1) to adjust the position of the center of mass of the return cabin. The invention can realize the dynamic allocation of the position of the center of mass of the return capsule when it returns and re-enters, has high application value, and can be applied to the control of the center of mass of the spacecraft return capsule.

Description

technical field [0001] The invention relates to the aerospace field, in particular to a dynamic adjustment device for the center of mass of a spacecraft return capsule. Background technique [0002] The return and reentry technology of spacecraft is one of the key technologies in the aerospace field. When the return capsule returns to the atmosphere and re-enters the atmosphere, it is subjected to air friction to generate a corresponding deceleration lift. The tilt angle, that is, the direction of the lift, can be adjusted through the attitude control system, and the projected component of the lift on the vertical plane and the horizontal plane can be changed, so as to control the longitudinal and lateral distances. , so that the landing of the return capsule reaches a certain landing accuracy. Under the fixed aerodynamic shape design, the change of the position of the center of mass of the spacecraft return module not only affects the static aerodynamic characteristics of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24B64G1/62
CPCB64G1/24B64G1/62B64G1/245
Inventor 苏令张敏捷许耀午齐岳
Owner BEIJING SPACE TECH RES & TEST CENT