access icon openaccess Performance of a tubular machine driven by an external-combustion free-piston engine

Free-piston engines have the potential to offer a compact machine capable of delivering electrical power. In this work, the design and modelling of a linear tubular generator are presented and used to investigate the effect of the electrical machine design on engine performance. A cogging-force-reduction technique is presented and used as a case study to demonstrate the importance of the integrated design.

Inspec keywords: combustion; permanent magnet machines; engines; linear machines; finite element analysis; internal combustion engines; electric generators; pistons; wave power generation

Other keywords: tubular machine; integrated design; electrical machine design; external-combustion free-piston engine; free-piston engines; linear tubular generator; cogging-force-reduction technique; modelling; electrical power; compact machine; engine performance

Subjects: Mechanical components; Finite element analysis; Engines; a.c. machines; Linear machines

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