{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/21144e5cc41e791fd509e72948185a979/treeber", "tags" : [ "(CNC)","Computer","Digital","Machining","control","manufacturing","myown","numerical","system" ], "intraHash" : "1144e5cc41e791fd509e72948185a979", "interHash" : "4842b6dc49051a4e88334b81e298b9ed", "label" : "Process Stability Monitoring - Potential of Internal Control Data for \r\nDrilling Processes in the Aerospace Industry", "user" : "treeber", "description" : "", "date" : "2023-12-20 17:08:02", "changeDate" : "2024-01-08 17:32:00", "count" : 8, "pub-type": "conference", "publisher":"SSRN", "year": "2023", "url": "", "author": [ "Johannes Ramme","Tim Reeber","Maximilian Rapp","Hans-Christian Möhring" ], "authors": [ {"first" : "Johannes", "last" : "Ramme"}, {"first" : "Tim", "last" : "Reeber"}, {"first" : "Maximilian", "last" : "Rapp"}, {"first" : "Hans-Christian", "last" : "Möhring"} ], "pages": "57-64","abstract": "Machining of complex parts for aerospace applications is still problematic. Multiple effects have an influence on the quality of the manufactured parts: Vibrations, tool wear and material properties such as the hardness of (e.g.) new high-temperature materials to name but a few. Especially the geometrical and material related properties of aerospace parts such as turbine blades suffer under these effects, which can result in out of tolerance geometrical dimensions and surface roughness that degrade the performance. Researchers in manufacturing make use of sensors with high sampling frequency to investigate and react to these influences. In contrast, the digitalization of machine control devices and their internal servo control cycles has the potential to substitute these sensors while still being financially more viable options. Additionally, they enable users to integrate the device vertically and horizontally into the factory environment, which enables in-line quality tracking and anomaly surveillance. However, lower sampling frequencies and distance from the process area are disadvantages of this approach. This paper investigates the substitution potential of internal control data for the machining process. The investigation focuses on drilling processes. Process-relevant sensor data such as forces, accelerations and acoustic emissions are measured in addition to NC servo control data. Through correlating internal and external data as well as surface and geometrical properties, the paper will give recommendations as to whether certain sensors can be successfully substituted by internal control data.", "bibtexKey": "ramme2023process" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/254d3a4a5bf50555dbaa5de703d3440b2/petraheim", "tags" : [ "2022","Additive","Aided","Bending-Active","Computer","Deployable","Design","Digital","Free-Form","Manufacturing","Optimization","Retractable","Spatial","Structural","Structures","Timber","Transformable","basnak","curved","framework","itke","klammer","knippers","körner","magna","material","origami","rihaczek" ], "intraHash" : "54d3a4a5bf50555dbaa5de703d3440b2", "interHash" : "51fb2bb419d32836b7625da9849f5a00", "label" : "Timbr Foldr \u2013 A Design Framework and Material System for Closed Cross - Section Curved Folded Structures", "user" : "petraheim", "description" : "", "date" : "2023-01-17 13:24:46", "changeDate" : "2023-01-17 12:24:46", "count" : 2, "pub-type": "article", "journal": "Journal of the International Association for Shell and Spatial Structures","publisher":"International Association for Shell and Spatial Structures (IASS)","address":"Alfonso XII, 3; 28014 Madrid, Spain", "year": "2022", "url": "", "author": [ "Gabriel Rihaczek","Maximilian Klammer","Okan Basnak","Axel Köerner","Riccardo La Magna","Jan Knippers" ], "authors": [ {"first" : "Gabriel", "last" : "Rihaczek"}, {"first" : "Maximilian", "last" : "Klammer"}, {"first" : "Okan", "last" : "Basnak"}, {"first" : "Axel", "last" : "Köerner"}, {"first" : "Riccardo", "last" : "La Magna"}, {"first" : "Jan", "last" : "Knippers"} ], "volume": "63","number": "4","pages": "272 - 288","abstract": "This research investigated building components that can be produced and transported in a flat state and transformed to a spatial state without scaffolding on-site. Curved folding was employed to allow for a shape change between flat and spatial bending active structures. Bending generally allows for expressive curvature with simple flat production as well as easy customization. Limitations presented by laborious forming and upscaling of individually bent plates were overcome by large-scale curved folding.\r\nThe present research builds upon the context but adds a design framework for volumetric curved folded components, a bistable behavior, and comprehensive detailing regarding upscaling and increased structural capacity. The mechanism was studied on a kinematic level, considering geometrical rules of curved folding and\r\nthe design space. It was also studied on a kinetic level under the consideration of material properties specific to plywood. As a proof of concept, a 1:1 scale demonstrator was built. Finite element modeling software was used to optimize\r\nthe shape. The demonstrator was fabricated flat, folded up, and locked in its stable configuration by the bistability and bases. It supported twelve people with a self-weight of approximately 300kg.", "language" : "eng", "issn" : "1028-365X", "doi" : "https://doi.org/10.20898/j.iass.2022.014", "bibtexKey": "rihaczek2022timbr" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/254d3a4a5bf50555dbaa5de703d3440b2/itke", "tags" : [ "Structures","Structural","magna","knippers","2022","Transformable","framework","Spatial","itke","material","from:petraheim","klammer","Bending-Active","rihaczek","Aided","Free-Form","curved","basnak","Retractable","körner","Digital","Deployable","Timber","Optimization","origami","Design","Additive","Manufacturing","Computer" ], "intraHash" : "54d3a4a5bf50555dbaa5de703d3440b2", "interHash" : "51fb2bb419d32836b7625da9849f5a00", "label" : "Timbr Foldr \u2013 A Design Framework and Material System for Closed Cross - Section Curved Folded Structures", "user" : "itke", "description" : "", "date" : "2023-01-17 13:24:46", "changeDate" : "2023-01-17 12:24:46", "count" : 2, "pub-type": "article", "journal": "Journal of the International Association for Shell and Spatial Structures","publisher":"International Association for Shell and Spatial Structures (IASS)","address":"Alfonso XII, 3; 28014 Madrid, Spain", "year": "2022", "url": "", "author": [ "Gabriel Rihaczek","Maximilian Klammer","Okan Basnak","Axel Köerner","Riccardo La Magna","Jan Knippers" ], "authors": [ {"first" : "Gabriel", "last" : "Rihaczek"}, {"first" : "Maximilian", "last" : "Klammer"}, {"first" : "Okan", "last" : "Basnak"}, {"first" : "Axel", "last" : "Köerner"}, {"first" : "Riccardo", "last" : "La Magna"}, {"first" : "Jan", "last" : "Knippers"} ], "volume": "63","number": "4","pages": "272 - 288","abstract": "This research investigated building components that can be produced and transported in a flat state and transformed to a spatial state without scaffolding on-site. Curved folding was employed to allow for a shape change between flat and spatial bending active structures. Bending generally allows for expressive curvature with simple flat production as well as easy customization. Limitations presented by laborious forming and upscaling of individually bent plates were overcome by large-scale curved folding.\r\nThe present research builds upon the context but adds a design framework for volumetric curved folded components, a bistable behavior, and comprehensive detailing regarding upscaling and increased structural capacity. The mechanism was studied on a kinematic level, considering geometrical rules of curved folding and\r\nthe design space. It was also studied on a kinetic level under the consideration of material properties specific to plywood. As a proof of concept, a 1:1 scale demonstrator was built. Finite element modeling software was used to optimize\r\nthe shape. The demonstrator was fabricated flat, folded up, and locked in its stable configuration by the bistability and bases. It supported twelve people with a self-weight of approximately 300kg.", "language" : "eng", "issn" : "1028-365X", "doi" : "https://doi.org/10.20898/j.iass.2022.014", "bibtexKey": "rihaczek2022timbr" } ] }