| Abstract [eng] |
Final master‘s project presents the analysis done on additive manufacturing, isotropic properties and topology optimization while maintaining focus on LAK mini glider‘s flap part. The purpose of final degree project: offer approach of additive manufacturing for LAK glider‘s flap part. Tasks set to achieve the goal of the work: Carry out general analysis of 3D printing, applications in aviation and topological analysis approach; Compile tests of additively manufactured specimens, calculate and check for the existence of isotropic properties; Compose LAK glider‘s 3D drawing of a part, investigate the possibilities of topological optimization; Complete a set of finite element analysis for both original part and topologically optimized parts; Manufacture chosen part, conduct prototype approval tests and offer final approach with suggestions and overview. Master‘s thesis consists of literature analysis and review, research section and final overview with conclusions. Literature analysis part briefly discuss additive manufacturing as a whole, including environmental and economical impacts. Further on topological analysis is overviewed and application of additive manufacturing in aviation sector. Research section begins with explanation of what will be done and what part is on the focus. Tensile testing is conducted, results prove the existence of isotropy and fit standard requirements. Research section continues with multiple topological optimization alternatives and their finite element analyses. Results show that boundary conditions are preserved, moreover topology optimization with a factor of safety 2.5 is chosen for manufacturing. The section is finished with final topological optimization manufactured with additive manufacturing method as prototype and testing to approve the design. Prototype approval testing shows, that final part fits the requirements and could be used in real life application. Final overview and conclusion is given according to the whole project. |
