Matches in SemOpenAlex for { <https://semopenalex.org/work/W26057807> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W26057807 abstract "The feasibility of using active controls to delay the onset of whirl-flutter on a joined-wing tilt rotor aircraft was investigated. The CAMRAD/JA code was used to obtain a set of linear differential equations which describe the motion of the joined-wing tilt-rotor aircraft. The hub motions due to wing/body motion is a standard input to CAMRAD/JA and were obtained from a structural dynamics model of a representative joined-wing tilt-rotor aircraft. The CAMRAD/JA output, consisting of the open-loop system matrices, and the airframe free vibration motion were input to a separate program which performed the closed-loop, active control calculations. An eigenvalue analysis was performed to determine the flutter stability of both open- and closed-loop systems. Sensor models, based upon the feedback of pure state variables and based upon hub-mounted sensors, providing physically measurable accelerations, were evaluated. It was shown that the onset of tilt-rotor whirl-flutter could be delayed from 240 to above 270 knots by feeding back vertical and span-wise accelerations, measured at the rotor hub, to the longitudinal cyclic pitch. Time response calculations at a 270-knot cruise condition showed an active cyclic pitch control level of 0.009 deg, which equates to a very acceptable 9 pound active-control force applied at the rotor hub." @default.
- W26057807 created "2016-06-24" @default.
- W26057807 creator A5000412454 @default.
- W26057807 date "1991-01-01" @default.
- W26057807 modified "2023-09-23" @default.
- W26057807 title "Alleviation of whirl-flutter on a joined-wing tilt-rotor aircraft configuration using active controls" @default.
- W26057807 hasPublicationYear "1991" @default.
- W26057807 type Work @default.
- W26057807 sameAs 26057807 @default.
- W26057807 citedByCount "2" @default.
- W26057807 crossrefType "journal-article" @default.
- W26057807 hasAuthorship W26057807A5000412454 @default.
- W26057807 hasConcept C127413603 @default.
- W26057807 hasConcept C13393347 @default.
- W26057807 hasConcept C146978453 @default.
- W26057807 hasConcept C154945302 @default.
- W26057807 hasConcept C17281054 @default.
- W26057807 hasConcept C197231348 @default.
- W26057807 hasConcept C2775924081 @default.
- W26057807 hasConcept C2777834885 @default.
- W26057807 hasConcept C2779844322 @default.
- W26057807 hasConcept C41008148 @default.
- W26057807 hasConcept C47446073 @default.
- W26057807 hasConcept C66938386 @default.
- W26057807 hasConcept C78519656 @default.
- W26057807 hasConcept C97257150 @default.
- W26057807 hasConceptScore W26057807C127413603 @default.
- W26057807 hasConceptScore W26057807C13393347 @default.
- W26057807 hasConceptScore W26057807C146978453 @default.
- W26057807 hasConceptScore W26057807C154945302 @default.
- W26057807 hasConceptScore W26057807C17281054 @default.
- W26057807 hasConceptScore W26057807C197231348 @default.
- W26057807 hasConceptScore W26057807C2775924081 @default.
- W26057807 hasConceptScore W26057807C2777834885 @default.
- W26057807 hasConceptScore W26057807C2779844322 @default.
- W26057807 hasConceptScore W26057807C41008148 @default.
- W26057807 hasConceptScore W26057807C47446073 @default.
- W26057807 hasConceptScore W26057807C66938386 @default.
- W26057807 hasConceptScore W26057807C78519656 @default.
- W26057807 hasConceptScore W26057807C97257150 @default.
- W26057807 hasOpenAccess W26057807 @default.
- W26057807 hasRelatedWork W1495758808 @default.
- W26057807 hasRelatedWork W1542860833 @default.
- W26057807 hasRelatedWork W1543308938 @default.
- W26057807 hasRelatedWork W1626855275 @default.
- W26057807 hasRelatedWork W1971708708 @default.
- W26057807 hasRelatedWork W2004099917 @default.
- W26057807 hasRelatedWork W2005500556 @default.
- W26057807 hasRelatedWork W2155264684 @default.
- W26057807 hasRelatedWork W2170300984 @default.
- W26057807 hasRelatedWork W2335623540 @default.
- W26057807 hasRelatedWork W2393795851 @default.
- W26057807 hasRelatedWork W2408929194 @default.
- W26057807 hasRelatedWork W247602219 @default.
- W26057807 hasRelatedWork W2622975757 @default.
- W26057807 hasRelatedWork W275327105 @default.
- W26057807 hasRelatedWork W3026872784 @default.
- W26057807 hasRelatedWork W336233561 @default.
- W26057807 hasRelatedWork W6295384 @default.
- W26057807 hasRelatedWork W751043152 @default.
- W26057807 hasRelatedWork W773687023 @default.
- W26057807 isParatext "false" @default.
- W26057807 isRetracted "false" @default.
- W26057807 magId "26057807" @default.
- W26057807 workType "article" @default.