FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895743954> ?p ?o ?g. }

• W2895743954 abstract "This thesis describes the design, construction and testing of an axial field permanent magnet machine for an aero-engine variable guide vane actuation system. The electrical machine is used in combination with a leadscrew unit that results in a minimum torque specification of 50Nm up to a maximum speed of 500rpm. The combination of the geometry of the space envelope available and the modest maximum speed lends itself to the consideration of an axial field permanent magnet machines. The relative merits of three topologies of double-sided permanent magnet axial field machines are discussed, viz. a slotless toroidal wound machine, a slotted toroidal machine and a yokeless axial field machine with separate tooth modules. Representative designs are established and analysed with three-dimensional finite element method, each of these 3 topologies are established on the basis of a transient winding current density of 30A/mm2. Having established three designs and compared their performance at the rated 50Nm point, further overload capability is compared in which the merits of the slotless machine is illustrated. Specifically, this type of axial field machine retains a linear torque versus current characteristic up to higher torques than the other two topologies, which are increasingly affected by magnetic saturation.Having selected a slotless machine as the preferred design, further design optimization was performed, including detailed assessment of transient performance. A key feature of this design is the use of a solid (i.e. non-laminated) toroidal stator core. This provides a stator with increased mechanical robustness, improved heat transfer and a ready means of incorporating fixing points into the core. However, these advantages are gained at the expense of a significant eddy currents in the stator core. A series of three-dimensional, magneto-dynamic finite element simulations were performed. Although the resulting eddy current losses are excessive for continuous operation, the reduction in transient performance which results from the eddy currents is shown to be manageable. The loss analysis is supplemented by transient three-dimensional finite element thermal modelling. Three-dimensional mechanical analysis is performed in combination with analytical equation to analyse the stator and rotor plate deflection subject to axial attractive force.The construction of a prototype double-sided axial field machine is described in this thesis which contains several interesting design features including a profiled rotor core to reduce mass, radially magnetised rotor magnets to produce torque from the axially oriented conductors on the inner edge of the toroidal winding. The testing of the machine is performed under a series of load points up to 75Nm to validate the predicted torque versus current density characteristics." @default.
• W2895743954 created "2018-10-12" @default.
• W2895743954 creator A5074423738 @default.
• W2895743954 date "2018-01-01" @default.
• W2895743954 modified "2023-09-26" @default.
• W2895743954 title "Axial field permanent magnet machines with high overload capability for transient actuation applications" @default.
• W2895743954 hasPublicationYear "2018" @default.
• W2895743954 type Work @default.
• W2895743954 sameAs 2895743954 @default.
• W2895743954 citedByCount "0" @default.
• W2895743954 crossrefType "dissertation" @default.
• W2895743954 hasAuthorship W2895743954A5074423738 @default.
• W2895743954 hasConcept C111919701 @default.
• W2895743954 hasConcept C119599485 @default.
• W2895743954 hasConcept C121332964 @default.
• W2895743954 hasConcept C127413603 @default.
• W2895743954 hasConcept C135628077 @default.
• W2895743954 hasConcept C144171764 @default.
• W2895743954 hasConcept C15001198 @default.
• W2895743954 hasConcept C154945302 @default.
• W2895743954 hasConcept C16389437 @default.
• W2895743954 hasConcept C184720557 @default.
• W2895743954 hasConcept C2775924081 @default.
• W2895743954 hasConcept C2776529397 @default.
• W2895743954 hasConcept C2780799671 @default.
• W2895743954 hasConcept C2780932299 @default.
• W2895743954 hasConcept C41008148 @default.
• W2895743954 hasConcept C47446073 @default.
• W2895743954 hasConcept C62520636 @default.
• W2895743954 hasConcept C66938386 @default.
• W2895743954 hasConcept C78519656 @default.
• W2895743954 hasConcept C82706917 @default.
• W2895743954 hasConcept C97355855 @default.
• W2895743954 hasConceptScore W2895743954C111919701 @default.
• W2895743954 hasConceptScore W2895743954C119599485 @default.
• W2895743954 hasConceptScore W2895743954C121332964 @default.
• W2895743954 hasConceptScore W2895743954C127413603 @default.
• W2895743954 hasConceptScore W2895743954C135628077 @default.
• W2895743954 hasConceptScore W2895743954C144171764 @default.
• W2895743954 hasConceptScore W2895743954C15001198 @default.
• W2895743954 hasConceptScore W2895743954C154945302 @default.
• W2895743954 hasConceptScore W2895743954C16389437 @default.
• W2895743954 hasConceptScore W2895743954C184720557 @default.
• W2895743954 hasConceptScore W2895743954C2775924081 @default.
• W2895743954 hasConceptScore W2895743954C2776529397 @default.
• W2895743954 hasConceptScore W2895743954C2780799671 @default.
• W2895743954 hasConceptScore W2895743954C2780932299 @default.
• W2895743954 hasConceptScore W2895743954C41008148 @default.
• W2895743954 hasConceptScore W2895743954C47446073 @default.
• W2895743954 hasConceptScore W2895743954C62520636 @default.
• W2895743954 hasConceptScore W2895743954C66938386 @default.
• W2895743954 hasConceptScore W2895743954C78519656 @default.
• W2895743954 hasConceptScore W2895743954C82706917 @default.
• W2895743954 hasConceptScore W2895743954C97355855 @default.
• W2895743954 hasLocation W28957439541 @default.
• W2895743954 hasOpenAccess W2895743954 @default.
• W2895743954 hasPrimaryLocation W28957439541 @default.
• W2895743954 hasRelatedWork W1523618456 @default.
• W2895743954 hasRelatedWork W1834313120 @default.
• W2895743954 hasRelatedWork W1980885011 @default.
• W2895743954 hasRelatedWork W1987496766 @default.
• W2895743954 hasRelatedWork W2008102798 @default.
• W2895743954 hasRelatedWork W2018620449 @default.
• W2895743954 hasRelatedWork W2076187007 @default.
• W2895743954 hasRelatedWork W2142959044 @default.
• W2895743954 hasRelatedWork W2548178988 @default.
• W2895743954 hasRelatedWork W2557040955 @default.
• W2895743954 hasRelatedWork W2605415901 @default.
• W2895743954 hasRelatedWork W2611467978 @default.
• W2895743954 hasRelatedWork W2620695709 @default.
• W2895743954 hasRelatedWork W2742742339 @default.
• W2895743954 hasRelatedWork W2804686471 @default.
• W2895743954 hasRelatedWork W2883426323 @default.
• W2895743954 hasRelatedWork W2920365834 @default.
• W2895743954 hasRelatedWork W2964343942 @default.
• W2895743954 hasRelatedWork W3131316222 @default.
• W2895743954 hasRelatedWork W2246256776 @default.
• W2895743954 isParatext "false" @default.
• W2895743954 isRetracted "false" @default.
• W2895743954 magId "2895743954" @default.
• W2895743954 workType "dissertation" @default.