Aliased beating helix induced by dual-frequency vibrations in turning
Machine-tool forced vibrations can generate undesired periodic patterns on the workpiece surface. These helix patterns imply poor surface quality but are valuable for identifying the machine-tool frequencies at fault as well. Thus, mathematical relations between the helix spatial features and the to...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/75119 |
| Acceso en línea: | http://hdl.handle.net/10810/75119 |
| Access Level: | acceso embargado |
| Palabra clave: | vibration topography turning |
| Sumario: | Machine-tool forced vibrations can generate undesired periodic patterns on the workpiece surface. These helix patterns imply poor surface quality but are valuable for identifying the machine-tool frequencies at fault as well. Thus, mathematical relations between the helix spatial features and the tool vibration frequency are fundamental for the diagnosis. This study investigates the interaction of two distinct vibration frequencies in turning and their influence on the surface. The beating phenomenon and the stroboscopic sampling of the rotary workpiece are applied to derive the aliased beating helix features. The proposed mathematical relations are numerically and experimentally validated in cylindrical turning tests. |
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