ACTIVE VIBRATION ATTENUATING SEAT SUSPENSION FOR AN ARMORED HELICOPTER CREW SEAT

Simple item page
dc.contributor.advisorWereley, Norman Men_US
dc.contributor.authorSztein, Pablo Javieren_US
dc.contributor.departmentAerospace Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2013-06-29T05:43:05Z
dc.date.available2013-06-29T05:43:05Z
dc.date.issued2013en_US
dc.description.abstractAn Active Vibration Attenuating Seat Suspension (AVASS) for an MH-60S helicopter crew seat is designed to protect the occupants from harmful whole-body vibration (WBV). Magnetorheological (MR) suspension units are designed, fabricated and installed in a helicopter crew seat. These MR isolators are built to work in series with existing Variable Load Energy Absorbers (VLEAs), have minimal increase in weight, and maintain crashworthiness for the seat system. Refinements are discussed, based on testing, to minimize friction observed in the system. These refinements include the addition of roller bearings to replace friction bearings in the existing seat. Additionally, semi-active control of the MR dampers is achieved using special purpose built custom electronics integrated into the seat system. Experimental testing shows that an MH-60S retrofitted with AVASS provides up to 70.65% more vibration attenuation than the existing seat configuration as well as up to 81.1% reduction in vibration from the floor.en_US
dc.identifier.urihttp://hdl.handle.net/1903/14185
dc.subject.pqcontrolledAerospace engineeringen_US
dc.subject.pquncontrolledDamperen_US
dc.subject.pquncontrolledHelicopteren_US
dc.subject.pquncontrolledIsolationen_US
dc.subject.pquncontrolledMagnetorheologicalen_US
dc.subject.pquncontrolledSeaten_US
dc.subject.pquncontrolledVibrationen_US
dc.titleACTIVE VIBRATION ATTENUATING SEAT SUSPENSION FOR AN ARMORED HELICOPTER CREW SEATen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Sztein_umd_0117N_14300.pdf
Size:
6.65 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Aerospace Engineering Theses and Dissertations