Development and evaluation of hybrid seat cushions for helicopter aircrew vibration mitigation

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DOIResolve DOI: http://doi.org/10.1177/1045389X14566522
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TypeArticle
Proceedings titleJournal of Intelligent Material Systems and Structures
Conference24th International Conference on Adaptive Structures and Technologies, October 7-9 2013, Aruba
ISSN1045-389X
1530-8138
Volume26
Issue13
Pages16331645
SubjectControl; Autonomic structures; Optimization
AbstractThis paper investigates the use of novel energy absorbing materials to reduce vibration transmitted through helicopter pilot seat cushions. A type of engineered material known as the Hybrid Air Cushioning System (HACS) was integrated into the design of helicopter seat cushions in addition to conventional foam materials. The prototype seat cushions were preliminarily evaluated as the bottom seat cushion on a Bell-412 non-armoured pilot seat through mechanical shaker tests. The promising cushion designs were further evaluated on a Bell-412 helicopter through extensive flight tests and aircrew configurations. The pilot whole-body vibration levels were assessed in accordance with ISO 2613-1:1997 standard. The flight test results demonstrated that the prototype cushions were able to reduce significantly the pilot whole-body vibration. Therefore, the integration of HACS with Bell-412 seat cushion can serve as a low cost solution to mitigate the vibration levels transmitted to helicopter pilots.
Publication date
PublisherSAGE
LanguageEnglish
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number23000508
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Record identifieraa082bc4-4619-47b9-83ea-3aa1bd45f543
Record created2016-07-26
Record modified2016-07-26
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