Aerospace & Defense Technology - October 2022 - 35

Tech Briefs
tion to the dynamic environment, and
no use of the occupants' legs to mitigate
an impact. In addition to protection
mechanisms, shock isolation seats
universally offer ergonomic features
that provide differing degrees of comfort.
This test standard addresses only
the protection characteristics of seats;
seat ergonomics is not addressed.
This work was performed by Michael
R. Riley, Kelly D. Haupt, Dr. H. C. Neil
Ganey, and Dr. Timothy W. Coats for
the Naval Surface Warfare Center. For
more information, download the
Technical Support Package (free white
paper) at mobilityengineeringtech.
com/tsp under the Test & Measurement
category. NSWC-0004
R/V Athena Model (5365) Response in Waves
Developing a computational approach to predicting the response of high-speed craft to both global
and local impact loads while operating at sea to allow for increased structural optimization.
Naval Surface Warfare Center, West Bethesda, Maryland
C
urrent structural design methods for
high-speed naval craft rely heavily
on empiricism. Though these methods
have been employed reliably for a number
of years, it is likely that an unknown
level of conservatism exists in the prediction
of both global and local impact
loads to ensure the vessel's structural
design is robust.
A better physical understanding of
the dynamic response of high-speed
craft in seas would allow for increased
structural optimization. To support this
understanding, a computational
approach to predicting motions and
loads was proposed. The publicly releasable
hull form Naval Surface Warfare
Center Carderock Division (NSWCCD)
No license limit.
No calculation limit.
No speed limit.
Model 5365 (R/V Athena) was chosen to
facilitate public release of results to various
computational teams.
This model test was designed to provide
a computational fluid dynamics
(CFD) validation data set for semi-planing
craft. The CFD predictions were evaluated
in their ability to predict calm water performance,
as well as motions and loads in
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Aerospace & Defense Technology, October 2022
mobilityengineeringtech.com
35

http://mobilityengineeringtech.com/tsp http://info.hotims.com/82326-798 http://www.photonengr.com http://www.mobilityengineeringtech.com

Aerospace & Defense Technology - October 2022

Table of Contents for the Digital Edition of Aerospace & Defense Technology - October 2022

Aerospace & Defense Technology - October 2022 - Intro
Aerospace & Defense Technology - October 2022 - Sponsor
Aerospace & Defense Technology - October 2022 - Cov1
Aerospace & Defense Technology - October 2022 - Cov2
Aerospace & Defense Technology - October 2022 - 1
Aerospace & Defense Technology - October 2022 - 2
Aerospace & Defense Technology - October 2022 - 3
Aerospace & Defense Technology - October 2022 - 4
Aerospace & Defense Technology - October 2022 - 5
Aerospace & Defense Technology - October 2022 - 6
Aerospace & Defense Technology - October 2022 - 7
Aerospace & Defense Technology - October 2022 - 8
Aerospace & Defense Technology - October 2022 - 9
Aerospace & Defense Technology - October 2022 - 10
Aerospace & Defense Technology - October 2022 - 11
Aerospace & Defense Technology - October 2022 - 12
Aerospace & Defense Technology - October 2022 - 13
Aerospace & Defense Technology - October 2022 - 14
Aerospace & Defense Technology - October 2022 - 15
Aerospace & Defense Technology - October 2022 - 16
Aerospace & Defense Technology - October 2022 - 17
Aerospace & Defense Technology - October 2022 - 18
Aerospace & Defense Technology - October 2022 - 19
Aerospace & Defense Technology - October 2022 - 20
Aerospace & Defense Technology - October 2022 - 21
Aerospace & Defense Technology - October 2022 - 22
Aerospace & Defense Technology - October 2022 - 23
Aerospace & Defense Technology - October 2022 - 24
Aerospace & Defense Technology - October 2022 - 25
Aerospace & Defense Technology - October 2022 - 26
Aerospace & Defense Technology - October 2022 - 27
Aerospace & Defense Technology - October 2022 - 28
Aerospace & Defense Technology - October 2022 - 29
Aerospace & Defense Technology - October 2022 - 30
Aerospace & Defense Technology - October 2022 - 31
Aerospace & Defense Technology - October 2022 - 32
Aerospace & Defense Technology - October 2022 - 33
Aerospace & Defense Technology - October 2022 - 34
Aerospace & Defense Technology - October 2022 - 35
Aerospace & Defense Technology - October 2022 - 36
Aerospace & Defense Technology - October 2022 - 37
Aerospace & Defense Technology - October 2022 - 38
Aerospace & Defense Technology - October 2022 - 39
Aerospace & Defense Technology - October 2022 - 40
Aerospace & Defense Technology - October 2022 - 41
Aerospace & Defense Technology - October 2022 - 42
Aerospace & Defense Technology - October 2022 - 43
Aerospace & Defense Technology - October 2022 - 44
Aerospace & Defense Technology - October 2022 - 45
Aerospace & Defense Technology - October 2022 - 46
Aerospace & Defense Technology - October 2022 - 47
Aerospace & Defense Technology - October 2022 - 48
Aerospace & Defense Technology - October 2022 - Cov3
Aerospace & Defense Technology - October 2022 - Cov4
https://www.nxtbook.com/smg/techbriefs/24ADT04
https://www.nxtbook.com/smg/techbriefs/24ADT02
https://www.nxtbook.com/smg/techbriefs/23ADT12
https://www.nxtbook.com/smg/techbriefs/23ADT10
https://www.nxtbook.com/smg/techbriefs/23ADT09
https://www.nxtbook.com/smg/techbriefs/23ADT08
https://www.nxtbook.com/smg/techbriefs/23ADT06
https://www.nxtbook.com/smg/techbriefs/23ADT05
https://www.nxtbook.com/smg/techbriefs/23ADT04
https://www.nxtbook.com/smg/techbriefs/23ADT02
https://www.nxtbook.com/smg/techbriefs/22ADT12
https://www.nxtbook.com/smg/techbriefs/22ADT10
https://www.nxtbook.com/smg/techbriefs/22ADT09
https://www.nxtbook.com/smg/techbriefs/22ADT08
https://www.nxtbook.com/smg/techbriefs/22ADT06
https://www.nxtbook.com/smg/techbriefs/22ADT05
https://www.nxtbook.com/smg/techbriefs/22ADT04
https://www.nxtbook.com/smg/techbriefs/22ADT02
https://www.nxtbook.com/smg/techbriefs/21ADT12
https://www.nxtbook.com/smg/techbriefs/21ADT10
https://www.nxtbook.com/smg/techbriefs/21ADT09
https://www.nxtbook.com/smg/techbriefs/21ADT08
https://www.nxtbook.com/smg/techbriefs/21ADT06
https://www.nxtbook.com/smg/techbriefs/21ADT05
https://www.nxtbook.com/smg/techbriefs/21ADT04
https://www.nxtbook.com/smg/techbriefs/21ADT02
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