Control device for inhibiting parachute spin, parachute and control method

A control method and technology of a control device, applied in the directions of parachute, transportation and packaging, emergency equipment, etc., can solve the problems of eliminating parachute spin, unable to control the yaw angle of parachute, etc., and achieve the effect of eliminating spin

Active Publication Date: 2021-03-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the technical problems raised above, a control device, a parachute and a control method for suppressing the spin of the parachute are provided, which are used to solve the existing technology of opening holes to control the falling direction of the parachute, although the falling direction of the parachute can be controlled to a certain extent. Control, but can not eliminate the spin of the parachute during the parachute fall, and can not control the yaw angle of the parachute

Method used

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  • Control device for inhibiting parachute spin, parachute and control method
  • Control device for inhibiting parachute spin, parachute and control method
  • Control device for inhibiting parachute spin, parachute and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, carry out flow field analysis to following hemispherical parachute, concrete parameter is as follows table: Hemispherical parachute concrete parameter

[0035]

[0036] Make the following reasonable assumptions:

[0037] 1. Air permeability assumption: Since the air permeability of the canopy is extremely low in the experiment, it has little impact on the numerical analysis process, so the air permeability of the canopy is not considered in the modeling process.

[0038] 2. Parachute shape assumption: The parachute line and the suture of the umbrella will affect the shape of the parachute, but it has little effect on the flow field of the overall parachute system, so the shape of the parachute in the process of stable descent can be considered as a symmetrical hemisphere , there is no change in shape during the fall. The canopy is made of thin film material without thickness.

[0039] 3. Assumption of steady flow field: In the calculation, the flow fi...

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PUM

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Abstract

The invention discloses a control device for suppressing the spinning of a parachute, a parachute and a control method. The control device for suppressing the spinning of the parachute comprises a remote controller, a shaping sheet, a control mechanism and a spoiler; a through hole is formed in the shaping sheet; the spoiler is formed in the through hole; the external diameter of the spoiler is inclearance fit with the internal diameter of the through hole; the spoiler is mounted in the through hole of the shaping sheet through a longitudinal shaft; the control mechanism is connected to the end part of the longitudinal shaft in a transmission manner; and the control mechanism comprises a power supply part, a receiving part and an executing part. According to the control device for suppressing the spinning of the parachute, the parachute and the control method, by changing the opening of the spoiler, the flow and flowing speed of air flow blasted from a parachute canopy are changed toachieve a purpose of eliminating the spinning of the parachute; and the falling speed and direction of the parachute can also be controlled.

Description

technical field [0001] The invention relates to the technical field of aircraft design, and relates to a control device for suppressing parachute spin, a parachute and a control method. Background technique [0002] At present, as a deceleration equipment, parachute plays an irreplaceable role in the fields of personnel and material delivery, spacecraft landing and recovery. [0003] In space missions, there are very high requirements for the reliability, stability and accuracy of the landing point of the parachute, whether it is the landing of the probe or the return of the spacecraft. [0004] However, in practical applications, the parachute will have a variety of unsteady motion characteristics during the descent process. For example, due to the coupling effect of the elasticity and pressure of the canopy and the parachute, the canopy will "breathe", and the parachute will swing and rotate. The "cone pendulum" movement caused by phase coupling, etc., will have an advers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D17/14
CPCB64D17/14
Inventor 周文雅范益朋张宗宇李龙恩李阳侯铮张翔宇
Owner DALIAN UNIV OF TECH
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