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Dynamic adjusting device for mass center of spacecraft return cabin

A technology for dynamic adjustment and return to the cabin, applied in the aerospace field, can solve the problems of not having the ability to adjust the center of mass of the entire cabin in orbit, unpredictable and salvage, etc., and achieve the effect of accurate center of mass adjustment, not easy to vibrate, and stable circumferential sliding.

Active Publication Date: 2020-01-31
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 adjusting device for mass center of spacecraft return cabin
  • Dynamic adjusting device for mass center of spacecraft return cabin

Examples

Experimental program
Comparison scheme
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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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PUM

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Abstract

The invention relates to a dynamic adjusting device for the mass center of a spacecraft return cabin. The device comprises an annular sliding rail unit (1), an adjusting module (2) and a driving device. The annular sliding rail unit (1) is arranged at the bottom of a return cabin, the adjusting module (2) is slidably mounted on the annular slide rail unit (1), and the driving device is mounted onthe adjusting module (2) and used for driving the adjusting module (2) to slide on the annular sliding rail unit (1) to adjust the position of the center of mass of the return cabin. The device can realize dynamic allocation of the position of the mass center of the return cabin when the return cabin returns and reenters, has the high application value, and can be applied to control the mass center of the spacecraft return cabin.

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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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