Rolls-Royce Holdings

About: Rolls-Royce Holdings is a company organization based out in Derby, United Kingdom. It is known for research contribution in the topics: Turbine & Gas compressor. The organization has 4027 authors who have published 6305 publications receiving 80517 citations. The organization is also known as: Rolls-Royce Holdings plc.

Cantilevered stator stage

Abstract: A cantilevered stator stage for the axial compressor 14 of a gas turbine engine 10 in which the stator tips 26 rub against an abrasive section 24 on the rotor drum 22 during initial running of the engine 10 to abrade the tips 26 of the stator to provide optimised stator tip running clearance.

Key roles of the leadership landscape

Abstract: A framework is developed, and validated, that provides an insight into the role of leadership in transforming a loose group into an effective team. In this context a loose group is defined as a number of individuals brought together to achieve a task, but with no further development undertaken. An effective team, by contrast, is one in which development of a supportive social structure has occurred, with each individual adapting his behaviour to optimise his personal contribution to the team. Four distinct leadership “key roles” are identified: legitimate, social, task, and macro, which lead to the identification of critical leadership issues that limit the speed with which loose groups transform into effective teams. This in turn enables specific recommendations to be made to assist individuals within a team to identify the key role they occupy, the importance of that key role relative to the others and the behaviours most appropriate to it. In the current research program the organisation studied was a multinational engineering company, engaged in the design, development and manufacture of rotating turbomachinery.

Characterization of Plastic Deformation Induced by Shot-Peening in a Ni-Base Superalloy

Abstract: The shot-peening process is currently employed in most industries to improve the longevity of components by inhibiting crack initiation as well as crack growth at the surface. The protective effect ...

Gasturbine combustion chamber and method of operation thereof

Abstract: A gas turbine engine combustion chamber (36) which has staged combustion to reduce nitrous oxides comprises a first radial flow swirler (70) and a second radial flow swirler (74) which supply primary air into a first fuel and air mixing zone (64). A pilot injector (86) only supplies fuel to be burnt into the mixing zone (64) at low power levels. At high power levels primary fuel injectors (88) inject fuel into the passages (72, 80) formed between the vanes (70, 74) of the first and second swirlers so that fuel and air mixture flows into the first fuel and air mixing zone (64) to be burnt. Simultaneously secondary fuel injectors (104) inject fuel into an annular secondary fuel and air mixing zone (94) which surrounds the first mixing zone (64). Fuel and air from the second mixing zone (94) flow through apertures (106) into the combustion chamber (36) downstream of the first mixing zone (64) and the additional fuel is burnt in the zone (112).