Institution
Rolls-Royce Limited
About: Rolls-Royce Limited is a based out in . It is known for research contribution in the topics: Gas compressor & Rotor (electric). The organization has 624 authors who have published 623 publications receiving 10751 citations. The organization is also known as: Rolls Royce Limited.
Topics: Gas compressor, Rotor (electric), Combustion chamber, Turbine, Nozzle
Papers published on a yearly basis
Papers
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01 Jun 1982TL;DR: In this paper, the effect of multi-frequency vibration in three planes is recognized and a unified approach to accessory design and development by which service accessory reliability might be improved by recognizing the effects of multihop vibration in different planes.
Abstract: Vibration measurements on gas turbine engines are normally made using accelerometers. The environment to which engine accessories would be subject has been evaluated by comparing ‘g’ peaks in the frequency spectrum, individually, with empirical yardsticks of severity. Endurance approval testing of accessories to withstand the environment so characterized is normally conducted by applying unidirectional single frequency excitation to simulate engine conditions at a particular shaft speed. These procedures have proved inadequate in predicting failure or verifying corrective measures where accessory problems due to wear phenomena are concerned.This paper analyses reasons for this inadequacy in terms of measurement practice, engine severity assessment, environmental simulation and approval procedures. By recognizing the effect of multi-frequency vibration in three planes it further aims to provide a unified approach to accessory design and development by which service accessory reliability might be improved. ...
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01 Oct 1982
TL;DR: In this paper, the authors present a procedure for fabbrication de la Partie AERODYNAMIQUEMENT (PARTIE AERONYMOUS NAMIQEMENT) in order to support the creation of an air ambulance service.
Abstract: L'INVENTION CONCERNE UN PROCEDE DE FABRICATION DE LA PARTIE AERODYNAMIQUEMENT PROFILEE D'UNE AUBE DE MOTEUR A TURBINE A GAZ DANS LEQUEL LES CONDUITS D'ECHAPPEMENT D'AIR REFRIGERANT DU BORD DE FUITE, OU AUTRE PARTIE, DE L'AUBE SONT REALISES PAR COULAGE. CE PROCEDE CONSISTE A REALISER UN NOYAU EN MATIERE CERAMIQUE ELIMINABLE COMPORTANT UNE PARTIE PRINCIPALE PROFILEE 27 ET UNE PIECE RENFORCATRICE 29 JOINTE A LA PARTIE PRINCIPALE PAR DES BARREAUX 28 CORRESPONDANT AUX FUTURS CONDUITS D'ECHAPPEMENT D'AIR, CES BARREAUX ETANT REALISES SIMULTANEMENT AU MOYEN D'UNE PIECE NON-REUTILISABLE ELIMINEE APRES DEMOULAGE DU NOYAU. CE DERNIER EST ENSUITE UTILISE DANS UNE OPERATION DE MOULAGE A CIRE PERDUE POUR OBTENIR LA PARTIE PROFILEE DEFINITIVE DE L'AUBE. L'INVENTION S'APPLIQUE PRINCIPALEMENT AUX AUBES MOBILES REFRIGEREES DE TURBINE DE MOTEUR A TURBINE A GAZ MAIS CONVIENT EGALEMENT A D'AUTRES AUBES PROFILEES CREUSES.
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19 Oct 1979TL;DR: In this article, the surface interne du corps est pourvue de gorges se faisant face and disposees suivant la direction longitudinale, a un endroit intermediaire entre les bords avant and arriere de ladite surface.
Abstract: Ce perfectionnement permet un refroidissement efficace de la surface interieure du corps creux d'une aube, a forme exterieure aerodynamique. La surface interne du corps est pourvue de gorges se faisant face et disposees suivant la direction longitudinale, a un endroit intermediaire entre les bords avant et arriere de ladite surface. Un premier insert comprend deux panneaux perfores situes dans la zone arriere et definissant un ou plusieurs passages d'air entre l'insert et la paroi du corps ; ce premier insert comprend des parties engagees dans les gorges du corps, et il est pourvu lui-meme de gorges se faisant face et disposees, suivant la direction longitudinale, en un endroit intermediaire entre les rebords avant et arriere. Un second insert comprend un premier panneau s'etendant en travers du vide forme dans le corps, ce second insert ayant des rebords engages dans les gorges du premier insert, et un second panneau fermant une extremite du corps.
Authors
Showing all 624 results
Name | H-index | Papers | Citations |
---|---|---|---|
John W. Chew | 26 | 152 | 2110 |
Brian F. Towler | 25 | 114 | 2647 |
Ian K. Jennions | 22 | 129 | 1345 |
George Pask | 12 | 32 | 401 |
Anthony E. Smart | 10 | 37 | 367 |
Martin Boll | 10 | 21 | 991 |
Haworth Lionel | 9 | 26 | 236 |
Smith Stanley | 9 | 20 | 233 |
Derek Aubrey Roberts | 7 | 16 | 186 |
David Mills | 7 | 16 | 108 |
Anthony Pidcock | 6 | 9 | 222 |
Mykhaylo Filipenko | 6 | 12 | 137 |
Alec George Dodd | 6 | 9 | 166 |
James Pears Angus | 6 | 11 | 117 |
Henry Edward Middleton | 6 | 8 | 150 |