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Title: Load limiting parachute inflation control

Abstract

Excessive deceleration forces experienced during high speed deployment of parachute systems can cause damage to the payload and the canopy fabric. Conventional reefing lines offer limited relief by temporarily restricting canopy inflation and limiting the peak deceleration load. However, the open-loop control provided by existing reefing devices restrict their use to a specific set of deployment conditions. In this paper, the sensing, processing, and actuation that are characteristic of adaptive structures form the basis of three concepts for active control of parachute inflation. These active control concepts are incorporated into a computer simulation of parachute inflation. Initial investigations indicate that these concepts promise enhanced performance as compared to conventional techniques for a nominal release. Furthermore, the ability of each controller to adapt to off-nominal release conditions is examined.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10116825
Report Number(s):
SAND-93-4000C; CONF-940206-3
ON: DE94005353; BR: GB0103012
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: North American conference on smart structures and materials,Orlando, FL (United States),13-18 Feb 1994; Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; PARACHUTES; CONTROL; DRAG; COMPUTERIZED SIMULATION; CONTROL SYSTEMS; MATHEMATICAL MODELS; AERODYNAMICS; 420200; FACILITIES, EQUIPMENT, AND TECHNIQUES

Citation Formats

Redmond, J, Hinnerichs, T, and Parker, G. Load limiting parachute inflation control. United States: N. p., 1994. Web.
Redmond, J, Hinnerichs, T, & Parker, G. Load limiting parachute inflation control. United States.
Redmond, J, Hinnerichs, T, and Parker, G. Sat . "Load limiting parachute inflation control". United States. https://www.osti.gov/servlets/purl/10116825.
@article{osti_10116825,
title = {Load limiting parachute inflation control},
author = {Redmond, J and Hinnerichs, T and Parker, G},
abstractNote = {Excessive deceleration forces experienced during high speed deployment of parachute systems can cause damage to the payload and the canopy fabric. Conventional reefing lines offer limited relief by temporarily restricting canopy inflation and limiting the peak deceleration load. However, the open-loop control provided by existing reefing devices restrict their use to a specific set of deployment conditions. In this paper, the sensing, processing, and actuation that are characteristic of adaptive structures form the basis of three concepts for active control of parachute inflation. These active control concepts are incorporated into a computer simulation of parachute inflation. Initial investigations indicate that these concepts promise enhanced performance as compared to conventional techniques for a nominal release. Furthermore, the ability of each controller to adapt to off-nominal release conditions is examined.},
doi = {},
url = {https://www.osti.gov/biblio/10116825}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Conference:
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