Matches in SemOpenAlex for { <https://semopenalex.org/work/W2897752021> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2897752021 abstract "Drag reduction of turbine compressor blades can be achieved by structuring small riblets, which run parallel to the airflow direction, into the blade’s surface. Machining of these riblets has been already successfully demonstrated by using single-spot picosecond laser ablation. This approach is successful but lacks an industry-compatible process speed and uses only fractions of the available power of a state-of-the-art picosecond laser system. Therefore beam-splitting Diffractive Optical Elements (DOEs) are used to parallelize the machining and to exploit the full laser power which is provided without side effects on quality.Until now a DOE can only help in machining structures bearing a fixed riblet pitch into the blade’s surface, but to further optimize the drag reduction dynamic changes of these pitches along the direction of the airflow are necessary. Since dynamically changing the DOE is not yet an acceptable solution, this limitation is overcome by rotating the DOE to tilt the spot array and thus change the resulting spot distances.In this paper an algorithmic approach is presented which optimizes the structure fill factor during the machining process, as rotation of the DOE causes a change of the overall width of the ablation zone.Experimental results presented show the feasibility of this approach using an integrated combination of a seven-spot DOE, translational and rotational axes, and a laser scanner to machine drag-reducing riblets in turbine-grade stainless steel.Furthermore, the experiments show that using this approach dead-end riblets can be suppressed and thus the number of turbulence seeds can be minimized." @default.
- W2897752021 created "2018-10-26" @default.
- W2897752021 creator A5023708163 @default.
- W2897752021 creator A5073678269 @default.
- W2897752021 creator A5091093657 @default.
- W2897752021 date "2011-01-01" @default.
- W2897752021 modified "2023-09-27" @default.
- W2897752021 title "Large-area production of dynamically scaled microstructures using diffractive optical elements" @default.
- W2897752021 cites W1852089754 @default.
- W2897752021 cites W1994263775 @default.
- W2897752021 cites W2010301198 @default.
- W2897752021 cites W2036242558 @default.
- W2897752021 cites W2325369992 @default.
- W2897752021 cites W2896901006 @default.
- W2897752021 cites W2897811498 @default.
- W2897752021 cites W4210892909 @default.
- W2897752021 cites W4246663497 @default.
- W2897752021 cites W4313063954 @default.
- W2897752021 doi "https://doi.org/10.2351/1.5062351" @default.
- W2897752021 hasPublicationYear "2011" @default.
- W2897752021 type Work @default.
- W2897752021 sameAs 2897752021 @default.
- W2897752021 citedByCount "1" @default.
- W2897752021 countsByYear W28977520212013 @default.
- W2897752021 crossrefType "proceedings-article" @default.
- W2897752021 hasAuthorship W2897752021A5023708163 @default.
- W2897752021 hasAuthorship W2897752021A5073678269 @default.
- W2897752021 hasAuthorship W2897752021A5091093657 @default.
- W2897752021 hasConcept C105795698 @default.
- W2897752021 hasConcept C120665830 @default.
- W2897752021 hasConcept C121332964 @default.
- W2897752021 hasConcept C127413603 @default.
- W2897752021 hasConcept C146978453 @default.
- W2897752021 hasConcept C154945302 @default.
- W2897752021 hasConcept C192562407 @default.
- W2897752021 hasConcept C2779751349 @default.
- W2897752021 hasConcept C33923547 @default.
- W2897752021 hasConcept C34559072 @default.
- W2897752021 hasConcept C41008148 @default.
- W2897752021 hasConcept C523214423 @default.
- W2897752021 hasConcept C72921944 @default.
- W2897752021 hasConcept C74050887 @default.
- W2897752021 hasConcept C78519656 @default.
- W2897752021 hasConceptScore W2897752021C105795698 @default.
- W2897752021 hasConceptScore W2897752021C120665830 @default.
- W2897752021 hasConceptScore W2897752021C121332964 @default.
- W2897752021 hasConceptScore W2897752021C127413603 @default.
- W2897752021 hasConceptScore W2897752021C146978453 @default.
- W2897752021 hasConceptScore W2897752021C154945302 @default.
- W2897752021 hasConceptScore W2897752021C192562407 @default.
- W2897752021 hasConceptScore W2897752021C2779751349 @default.
- W2897752021 hasConceptScore W2897752021C33923547 @default.
- W2897752021 hasConceptScore W2897752021C34559072 @default.
- W2897752021 hasConceptScore W2897752021C41008148 @default.
- W2897752021 hasConceptScore W2897752021C523214423 @default.
- W2897752021 hasConceptScore W2897752021C72921944 @default.
- W2897752021 hasConceptScore W2897752021C74050887 @default.
- W2897752021 hasConceptScore W2897752021C78519656 @default.
- W2897752021 hasLocation W28977520211 @default.
- W2897752021 hasOpenAccess W2897752021 @default.
- W2897752021 hasPrimaryLocation W28977520211 @default.
- W2897752021 hasRelatedWork W1986859014 @default.
- W2897752021 hasRelatedWork W2025206052 @default.
- W2897752021 hasRelatedWork W2403795514 @default.
- W2897752021 hasRelatedWork W2624780643 @default.
- W2897752021 hasRelatedWork W2899084033 @default.
- W2897752021 hasRelatedWork W3045935093 @default.
- W2897752021 hasRelatedWork W3206437088 @default.
- W2897752021 hasRelatedWork W4205366261 @default.
- W2897752021 hasRelatedWork W4313812407 @default.
- W2897752021 hasRelatedWork W4376141755 @default.
- W2897752021 isParatext "false" @default.
- W2897752021 isRetracted "false" @default.
- W2897752021 magId "2897752021" @default.
- W2897752021 workType "article" @default.