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A composite tapered slit parachute and its structure design method

A structural design and composite technology, applied in parachutes, emergency equipment, aircraft parts, etc., can solve problems such as low drag coefficient and weak stability

Active Publication Date: 2016-06-01
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two umbrella types have low drag coefficients and weak stability, so improvements in drag performance and stability are necessary

Method used

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  • A composite tapered slit parachute and its structure design method
  • A composite tapered slit parachute and its structure design method
  • A composite tapered slit parachute and its structure design method

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Embodiment Construction

[0073] The composite conical slotted parachute and its structural design according to the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0074] Composite tapered slit parachute according to the present invention comprises canopy 1 and parachute 2 two parts, and its structure is as follows figure 1 shown.

[0075] The canopy 1 is divided into upper, middle and lower parts: the upper part is a disc 11 and the lower part is a belt 13, all of which are dense fabrics; the middle part is a wide slit 12, which vertically separates the disc 11 and the belt 13. The disc is a composite cone-shaped dense fabric, including a top cone, a middle cone and a bottom cone, which are spliced ​​end to end in sequence. The top of the disc is provided with a top hole. Band 13 is the fabric of rectangular structure under the planar unfolded state, and its bottom edge is connected with parachute rope.

[0076] The can...

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Abstract

The invention provides a composite conical slotted parachute applied to a supersonic low-density parachute opening environment, and a structural design method thereof. The parachute disclosed by the invention comprises two parts, namely a canopy and parachute cords, wherein the fabric surface of the canopy is composed of a composite conical upper part and a cylindrical canopy bottom, which are vertically separated from the middle by virtue of a wide gap; and the composite conical upper part comprises a top cone, a middle cone and a bottom cone. The composite conical slotted parachute has the advantages of high resistance coefficient and high stability, the defects of an existing background technology are overcome, and the composite conical slotted parachute is an excellent supersonic low-density parachute.

Description

technical field [0001] The invention belongs to the technical field of aerospace entry, deceleration and landing (EDL), and in particular relates to a composite conical slotted parachute and a structural design method thereof applied in a supersonic low-density parachute opening environment. Background technique [0002] With the rapid development of deep space exploration technology, the EDL technology for planets with thin atmospheres (such as Mars) has become a research hotspot and difficulty. Among them, supersonic low-density parachute deceleration technology is a core technology. Up to now, the parachute parachute types suitable for supersonic low-density parachute opening include disc seam parachute, improved ring sail parachute, cross parachute and so on. Although the cross-shaped parachute has the largest unit resistance area, with the increase of parachute opening speed, the cross-shaped parachute will have greater vibration and poor stability; under the condition ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D17/02B64D17/24
Inventor 梁艳李健
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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