부산대학교 도서관

This paper presents the design of a synchronous reluctance tubular linear machine, whose moving part (plunger) is fabricated by means of metal additive manufacturing. At first, an analytical approach to compute the optimal air gap to external diameter ratio which leads to the maximum force is defined, then the proposed analytical method is validated via 2-D finite element analysis on a reference tubular machine. Once the optimal diameter ratio was defined, an optimal design of the tubular machine rotor is proposed with the aim of increasing the thrust force and reducing the force ripple. Finally, a mock-up of one segment of the optimized plunger geometry was fabricated in resin using fused deposition modeling (FDM) 3-D printing equipment.