A deployable landing ladder with shape memory effect

A memory effect and memory technology, applied in the field of aerospace, can solve the problems of complex structure and heavy weight of the landing ladder, and achieve the effect of simple and compact structure design, light weight and high strength

Active Publication Date: 2021-05-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing landing ladder has complex structure and heavy weight, which leads to heavy weight when launching

Method used

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  • A deployable landing ladder with shape memory effect
  • A deployable landing ladder with shape memory effect
  • A deployable landing ladder with shape memory effect

Examples

Experimental program
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specific Embodiment approach 1

[0023] Specific implementation mode one: refer to Figure 1 to Figure 8 Specifically explain this embodiment, a deployable landing ladder with shape memory effect described in this embodiment, which includes a composite material landing ladder 1 and a support rod 2,

[0024] The composite material landing ladder 1 includes two composite material landing ladder legs, the two composite material landing ladder legs are connected by a support rod 2, the composite material landing ladder 1 can be folded or curled in the lander,

[0025] Each composite material landing ladder ladder leg includes two Ω-shaped shape memory composite material beams 3, shape memory foam 4 and resistive heating sheet 5,

[0026] Two Ω-shaped shape-memory composite material beams 3 are buckled, and the shape-memory foam 4 is filled in the gap between the two Ω-shaped shape-memory composite material beams 3, and the inside of the two Ω-shaped shape-memory composite material beams 3 Each surface is pasted ...

specific Embodiment approach 2

[0033] Specific embodiment 2: This embodiment is a further description of the expandable landing ladder with shape memory effect described in specific embodiment 1. In this embodiment, the Ω-shaped shape memory composite material beam 3 is made of carbon fiber shape memory polymer made of composite materials.

[0034] In this embodiment, different types of shape memory polymers have different glass transition temperatures and mechanical properties.

specific Embodiment approach 3

[0035] Specific embodiment three: This embodiment is a further description of the expandable landing ladder with shape memory effect described in specific embodiment one. In this embodiment, the shape memory foam 4 is made of epoxy, cyanate or benzene Made of vinyl.

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Abstract

An expandable landing ladder with shape memory effect relates to the aerospace field. The invention aims to solve the problem that the existing landing ladder has a complex structure and a large weight, which causes a large weight to be carried during launch. Two Ω-shaped shape-memory composite beams butt joints, the shape-memory foam is filled in the gap between the two Ω-shaped shape-memory composite beams, and the inner surfaces of the two Ω-shaped shape-memory composite beams are pasted with A resistive heating sheet, a resistive heating sheet, is used to raise the temperature of the Ω-shaped shape-memory composite beam above its glass transition temperature in the energized state, so that the Ω-shaped shape-memory composite beam expands, and the shape-memory foam Being compressible, shape-memory foam is used to provide additional load-carrying capacity for the deployment of Ω-shaped shape-memory composite beams. It serves as an important bridge between the lander and the planet's surface.

Description

technical field [0001] The invention relates to a lightweight, expandable and contractible landing ladder, which belongs to the field of aerospace. Background technique [0002] In the "China's Aerospace" published in 2000, China pointed out that it is necessary to "develop advance research on deep space exploration focusing on lunar exploration" and "occupy a relatively important position in the field of space science in the world, and carry out distinctive space exploration research." . And in 2003, the "China Lunar Exploration Project" was officially launched, and in 2016, the "China Mars Exploration Program" was officially established. Whether it is the lunar exploration project or the Mars exploration program, after the probe lands successfully, whether the rover can be released smoothly is the key to the realization of the exploration plan, and the landing ladder of the rover is an important bridge connecting the lander and the surface of the planet, so designing a T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/62
CPCB64G1/62
Inventor 冷劲松鲁庆庆刘立武刘彦菊孙健兰鑫
Owner HARBIN INST OF TECH
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