Determination of the Parachute Harness Critical Load Based on Load Distribution into Individual Straps with Respect of the Skydiver’s Body Position

Simple item page
dc.contributor.authorGrim, Robertcs
dc.contributor.authorPopela, Robertcs
dc.contributor.authorJebáček, Ivocs
dc.contributor.authorHorák, Marekcs
dc.contributor.authorŠplíchal, Jancs
dc.coverage.issue1cs
dc.coverage.volume10cs
dc.date.issued2023-01-14cs
dc.description.abstractThis article evaluates the redistribution of forces to the parachute harness during an opening shock load and also defines the ultimate limit load of the personal parachute harness by specifying the weakest construction element and its load capacity. The primary goal of this research was not only to detect the critical elements but also to gain an understanding of the force redistribution at various load levels, which could represent changes in body mass or aerodynamic properties of the parachute during the opening phase. To capture all the phenomena of the parachutist’s body deceleration, this study also includes loading the body out of the steady descending position and asymmetrical cases. Thus, the result represents not only idealized loading but also realistic limit cases, such as asymmetric canopy inflation or system activation when the skydiver is in a non-standard position. The results revealed a significant difference in the strength utilization of the individual components. Specifically, the back webbing was found to carry a fractional load compared to the other webbing used in the design in most of the scenarios tested. Reaching the maximum allowable strength was first achieved in the asymmetric load test case, where the total force would be equal to the value of 7.963 kN, which corresponds to the maximum permissible strength of the carabiner on the measuring element three. In the same test case, the second weakest point would reach the limiting load force when the entire harness is loaded with 67.89 kN. This information and the subsequent analysis of the individual nodes provide a great opportunity for further strength and weight optimization of the design, without reducing the load capacity of the harness as a system. The findings of this study will be used for further testing and possible harness robustness optimization for both military and sport parachuting.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAerospace. 2023, vol. 10, issue 1, p. 1-18.en
dc.identifier.doi10.3390/aerospace10010083cs
dc.identifier.issn2226-4310cs
dc.identifier.orcid0000-0002-5913-0059cs
dc.identifier.orcid0000-0002-8553-046Xcs
dc.identifier.orcid0000-0002-8538-6090cs
dc.identifier.orcid0000-0003-3971-6594cs
dc.identifier.orcid0000-0002-4505-7751cs
dc.identifier.other181501cs
dc.identifier.researcheridC-3304-2019cs
dc.identifier.researcheridAAC-8929-2019cs
dc.identifier.scopus55754224900cs
dc.identifier.urihttp://hdl.handle.net/11012/209233
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofAerospacecs
dc.relation.urihttps://www.mdpi.com/2226-4310/10/1/83cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2226-4310/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectparachute harnessen
dc.subjectopening loaden
dc.subjectlimit loaden
dc.titleDetermination of the Parachute Harness Critical Load Based on Load Distribution into Individual Straps with Respect of the Skydiver’s Body Positionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-181501en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:47:32en
sync.item.modts2025.01.17 15:17:22en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Letecký ústavcs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
aerospace1000083v3.pdf
Size:
6.37 MB
Format:
Adobe Portable Document Format
Description:
aerospace1000083v3.pdf
Download
Collections
Letecký ústav