{ "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/29d780ed026e74fce3f806deb3875064a/jmueller", "tags" : [ "adaptive,","control","deflection","lightweight,","load","management,","path","sobek" ], "intraHash" : "9d780ed026e74fce3f806deb3875064a", "interHash" : "f00573b02bece0f39726e5239b85b292", "label" : "Adaptive lightweight structures", "user" : "jmueller", "description" : "", "date" : "2023-11-27 15:10:57", "changeDate" : "2023-11-27 15:10:57", "count" : 1, "pub-type": "inproceedings", "booktitle": "Lightweight Structures in Civil Engineering, IASS Symposium, June 24-28, 2002, Warsaw, Poland","address":"Warsaw", "year": "2002", "url": "", "author": [ "Werner Sobek","Patrick Teuffel" ], "authors": [ {"first" : "Werner", "last" : "Sobek"}, {"first" : "Patrick", "last" : "Teuffel"} ], "pages": "203--210","abstract": "Mobile or deployable structures, wide span bridges or high-rise towers increase the demand for more efficient and lightweight structures. Recent developments in information technology, material science, electronics and structural engineering pushed the limits of feasibility further and the integration of all these technologies promise a great potential: the introduction of adaptive systems in architecture and structural engineering. In natural systems adaptive processes are well known and they seem to be obvious and appropriate. In contrast, technical systems, e. g. bridges or houses are static \u2013 they don\u2019t react to changes in their environment. But it seems to be logical to have systems that react to external stimuli, such as varying loading conditions or noise. Adaptronics deals with all aspects which are relevant to research, development and application of adaptive systems: Sensors, actuators and a control unit are integrated into one system. Sensors (or nerves) are able to detect and measure a variety of parameters, such as temperature or strains. Actuators are used to carry out the desired control action, for instance applying a force to the system or to change the stiffness or damping of the structure. In our studies we consider active and semi-active systems with the aim to homogenise the stress distribution and to control the deflections. Numerical examples are presented in this paper to show the potential of this new development for lightweight structures.", "isbn" : "83-908867-6-6", "bibtexKey": "sobek_adaptive_2002" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/22f1f5623ae365aef51e62fbac2d781b2/isw-bibliothek", "tags" : [ "Feed","Machine","Path","Rack-and-pinon","Transmission","accuracy","drive","errors","tools" ], "intraHash" : "2f1f5623ae365aef51e62fbac2d781b2", "interHash" : "4c011103284a87abba3f8a0332d4fd18", "label" : "Experimental investigation into the implications of transmission errors for rack\u2011and\u2011pinion drives", "user" : "isw-bibliothek", "description" : "", "date" : "2021-11-29 14:00:42", "changeDate" : "2021-11-29 13:00:42", "count" : 1, "pub-type": "article", "journal": "Production Engineering Research and Development", "year": "2021", "url": "", "author": [ "Lukas Steinle","Armin Lechler","Michael Neubauer","Alexander Verl" ], "authors": [ {"first" : "Lukas", "last" : "Steinle"}, {"first" : "Armin", "last" : "Lechler"}, {"first" : "Michael", "last" : "Neubauer"}, {"first" : "Alexander", "last" : "Verl"} ], "abstract": "Rack-and-pinion drives are the preferred option in the machine tool sector when long ranges of motion and high loads are\r\ninvolved. However, their shortcomings particularly include defciencies in the achievable positioning and path accuracy. The\r\nbacklash as one of the main issues is well described in the literature and numerous solutions to reduce its negative efects\r\nexist. In contrast, there is a lack of literature regarding the scientifc and systematic analysis of the transmission errors in\r\nrack-and-pinion drives. In this paper, the displacements originating in the drive train of a system with industrial components\r\nare measured under diferent operating conditions. The observed transmission errors are thoroughly analyzed in no-load\r\noperation and their sources are discussed. Subsequent investigations show signifcant load-dependent alterations of the\r\ntransmission errors and direction-dependent characteristics, the causes of which are explained. It is shown, that transmission errors negatively afect the path accuracy of position controlled drives, which is amplifed by excitation of the machine\r\nstructure in certain operating conditions. To address this issue, diferent error compensation concepts are presented.", "doi" : "https://doi.org/10.1007/s11740-021-01090-y", "bibtexKey": "steinle2021experimental" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2a3a2e283d58c1a1abbc711c9bc2e0db6/benjaminkaiser", "tags" : [ "Industrial","Matching","Path","Robots","planning" ], "intraHash" : "a3a2e283d58c1a1abbc711c9bc2e0db6", "interHash" : "66485235ca97b91ef5ecf79cb1e96d89", "label" : "Camera based path planning for low quantity - high variant manufacturing with industrial robots", "user" : "benjaminkaiser", "description" : "", "date" : "2019-10-21 16:38:38", "changeDate" : "2019-10-21 14:38:38", "count" : 1, "pub-type": "inproceedings", "booktitle": "2018 25th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)", "year": "2018", "url": "https://ieeexplore.ieee.org/document/8600833/", "author": [ "Peter Weβeler","Benjamin. Kaiser","Jürgen. t. Vrugt","Armin. Lechler","Alexander. Verl" ], "authors": [ {"first" : "Peter", "last" : "Weβeler"}, {"first" : "Benjamin.", "last" : "Kaiser"}, {"first" : "Jürgen.", "last" : "t. Vrugt"}, {"first" : "Armin.", "last" : "Lechler"}, {"first" : "Alexander.", "last" : "Verl"} ], "pages": "1-6","abstract": "The acquisition costs for industrial robots have been steadily decreasing in past years. Nevertheless, they still face significant drawbacks in the required effort for the preparation of complex robot tasks which causes these systems to be rarely present so far in small and medium-sized enterprises (SME) that focus mainly on small volume, high variant manufacturing. In this paper, we propose a camera-based path planning framework that allows the fast preparation and execution of robot tasks in dynamic environments which leads to less planning overhead, fast program generation and reduced cost and hence overcomes the major impediments for the usage of industrial robots for automation in SMEs with focus on low volume and high variant manufacturing. The framework resolves existing problems in different steps. The exact position and orientation of the workpiece are determined from a 3D environment model scanned by an optical sensor. The so retrieved information is used to plan a collision-free path that meets the boundary conditions of the specific robot task. Experiments show the potential and effectiveness of the the framework presented here by evaluating a case study.", "doi" : "10.1109/M2VIP.2018.8600833", "bibtexKey": "8600833" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2e0448bd4e690236c44a8be8130153c72/theochem", "tags" : [ "Ab","steepest","reaction","werner","coordinate,Quadratic","theoretische","stuttgart","chemie","energy","path","from:alexanderdenzel","following","descent,Reaction","initio","potential","theochem","surface,Intrinsic" ], "intraHash" : "e0448bd4e690236c44a8be8130153c72", "interHash" : "3b783956b46930131a193352738577a1", "label" : "Reaction path following by quadratic steepest descent", "user" : "theochem", "description" : "", "date" : "2019-03-01 15:49:40", "changeDate" : "2019-03-01 14:49:40", "count" : 1, "pub-type": "article", "journal": "Theor. Chem. Acc.", "year": "1998", "url": "http://dx.doi.org/10.1007/s002140050362", "author": [ "Frank Eckert","Hans Joachim Werner" ], "authors": [ {"first" : "Frank", "last" : "Eckert"}, {"first" : "Hans Joachim", "last" : "Werner"} ], "volume": "100","number": "1-4","pages": "21\u201330","abstract": "An efficient steepest descent algorithm for the integration of minimum energy paths, based on local quadratic approximations of the potential energy surface, is presented. The algorithm incorporates a selection procedure for the points at which the second derivatives of the energy are calculated fully or partially, thus minimizing the computational effort while maintaining high accuracy. This makes the method especially well suited for application in variational transition state theory calculations with tunnelling corrections, which have very high accuracy requirements. The performance of the algorithm is illustrated by ab initio calculations for four chemical reactions of differing complexity. The overall computational cost is less than for, or comparable to that of, first- or second-order algorithms published previously.", "issn" : "1432881X", "doi" : "10.1007/s002140050362", "bibtexKey": "publ9368913" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2a3bab84dd50656145b8c567dde16f8f1/isw-bibliothek", "tags" : [ "architecture","cloud","cloud-based","computing","control","data","grk2198","path" ], "intraHash" : "a3bab84dd50656145b8c567dde16f8f1", "interHash" : "a8c1233ff6f6ded1a67b2cd04abbdedc", "label" : "A cloud-based control architecture design for the interaction of industrial robots with soft objects", "user" : "isw-bibliothek", "description" : "", "date" : "2018-02-21 16:57:28", "changeDate" : "2020-01-20 14:30:06", "count" : 3, "pub-type": "inproceedings", "booktitle": "2017 24th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)", "year": "2017", "url": "", "author": [ "Christoph Hinze","Weilang Xu","Armin Lechler","Alexander Verl" ], "authors": [ {"first" : "Christoph", "last" : "Hinze"}, {"first" : "Weilang", "last" : "Xu"}, {"first" : "Armin", "last" : "Lechler"}, {"first" : "Alexander", "last" : "Verl"} ], "pages": "1-6", "doi" : "10.1109/M2VIP.2017.8211438", "bibtexKey": "Hinze.2017" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/28d3d9e59de13fbf3a05892c9df15b55c/christophhinze", "tags" : [ "architecture","cloud","cloud-based","computing","control","data","path" ], "intraHash" : "8d3d9e59de13fbf3a05892c9df15b55c", "interHash" : "a8c1233ff6f6ded1a67b2cd04abbdedc", "label" : "A cloud-based control architecture design for the interaction of industrial robots with soft objects", "user" : "christophhinze", "description" : "", "date" : "2018-02-05 16:32:51", "changeDate" : "2018-02-05 15:32:51", "count" : 3, "pub-type": "inproceedings", "booktitle": "2017 24th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)", "year": "2017", "url": "", "author": [ "C. Hinze","W. Xu","A. Lechler","A. Verl" ], "authors": [ {"first" : "C.", "last" : "Hinze"}, {"first" : "W.", "last" : "Xu"}, {"first" : "A.", "last" : "Lechler"}, {"first" : "A.", "last" : "Verl"} ], "pages": "1-6", "doi" : "10.1109/M2VIP.2017.8211438", "bibtexKey": "Hinze.2017" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2289645c44afe7669e003aaa729637637/malte.heckelen", "tags" : [ "hierarchical","media,","model","model,","news,","panel","path","persuasion,","social","study," ], "intraHash" : "289645c44afe7669e003aaa729637637", "interHash" : "d34e70776d9cc007ca3c209df487b843", "label" : "Political Persuasion on Social Media", "user" : "malte.heckelen", "description" : "", "date" : "2017-10-25 14:04:56", "changeDate" : "2018-03-21 12:01:49", "count" : 1, "pub-type": "article", "journal": "New Media & Society", "year": "2016", "url": "http://dx.doi.org/10.1177/1461444815616224", "author": [ "Trevor Diehl","Brian E Weeks","Homero Gil de Zúñiga" ], "authors": [ {"first" : "Trevor", "last" : "Diehl"}, {"first" : "Brian E", "last" : "Weeks"}, {"first" : "Homero Gil", "last" : "de Zúñiga"} ], "volume": "18","number": "9","pages": "1875-1895","abstract": "News use via social media has been linked to pro-democratic political behaviors. However, most people use social media for non-political purposes, like connecting with friends and browsing news feeds. Recent research indicates these behaviors may also have democratic benefits, by means of political expression in social media. Drawing on panel data from a nationally representative sample, this study extends this line of research by exploring how social interaction and news-seeking behaviors on social media lead to diverse networks, exposure to dissenting political opinion, and ultimately reconsidering and changing one\u2019s political views. Social media are a unique communication platform, and their attributes might influence exposure to political information. The tendency for users to build and maintain friend networks creates a potential deliberative space for political persuasion to take place. Consistent with prior literature, news use leads to political persuasion. More interestingly, apolitical, but social interactive uses of social media also lead to political persuasion. These relationships are partially mediated through network and discussion attributes.", "file" : ":C\\:\\\\Users\\\\Heckelen\\\\bwSyncAndShare\\\\Diss\\Łiteratur\\\\Diel et al (2015) Political Persuasion on Social Media.pdf:PDF", "subtitle" : "Tracing Direct and Indirect Effects of News Use and Social Interaction", "doi" : "10.1177/1461444815616224", "bibtexKey": "Dieletal2015" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2efe6fbc82dbe807cc24f5981b5762b95/isw-bibliothek", "tags" : [ "CAD","CAM","CNC","ISW","Joint","Machining","Path","Planning","Robot","Space","xkt" ], "intraHash" : "efe6fbc82dbe807cc24f5981b5762b95", "interHash" : "d99d3d0b772460464e8aae72ed3609d9", "label" : "Productivity Increase through Joint Space Path Planning for Robot Machining", "user" : "isw-bibliothek", "description" : "", "date" : "2016-03-12 22:49:24", "changeDate" : "2016-03-14 15:33:16", "count" : 2, "pub-type": "inproceedings", "booktitle": "Modelling Symposium (EMS), 2014 European", "year": "2014", "url": "http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7154008", "author": [ "Agus Atmosudiro","Matthias Keinert","Ali Karim","Armin Lechler","Alexander Verl","Akos Csizar" ], "authors": [ {"first" : "Agus", "last" : "Atmosudiro"}, {"first" : "Matthias", "last" : "Keinert"}, {"first" : "Ali", "last" : "Karim"}, {"first" : "Armin", "last" : "Lechler"}, {"first" : "Alexander", "last" : "Verl"}, {"first" : "Akos", "last" : "Csizar"} ], "pages": "257-262","abstract": "Machine tools realize tool movements with high accuracy mainly due to highly developed computerized numerical controls (CNCs). As articulated industrial robots are used more and more for machining, robot controllers (RC) have to be equipped with additional path planning capabilities, similar to machine tools. A RC is very similar to a CNC from a software and hardware point of view, but with one major difference, the RC has an additional transformation stage, the transformation from Cartesian space to joint space. Machining with robots is a field intensely researched in the last years. CNC systems for robots are commercially available, furthermore, more and more CAM systems have extensions for machining with robots. Most of these offer a simulation of the machining process using a robot model, in order to solve the inverse kinematic problem and, additionally, to take into consideration axis motion limits (maximum angular amplitudes) and singularities. Moreover, path planning for machining robots is done in exactly the same way as for machine tools, with the mentioned additional transformation stage. This paper describes the advantages and challenges which result from the integration of the kinematic transformation in the path planning stage.", "doi" : "10.1109/EMS.2014.46", "bibtexKey": "7154008" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2aed13fa759127d8268ba4a357fb3929f/isw-bibliothek", "tags" : [ "ISW","avoidance","collision","path","planning," ], "intraHash" : "aed13fa759127d8268ba4a357fb3929f", "interHash" : "060a7ae71777f3839211f7e1eeba6ee3", "label" : "Dynamic and Interactive Path Planning and Collision Avoidance for anIndustrial Robot Using Artificial Potential Field Based Method: Dynamic and Interactive Path Planning and Collision Avoidance for anIndustrial Robot Using Artificial Potential Field Based Method", "user" : "isw-bibliothek", "description" : "", "date" : "2016-03-03 09:53:12", "changeDate" : "2016-03-03 09:18:35", "count" : 1, "pub-type": "misc", "year": "2011", "url": "", "author": [ "T.Dietz A. Verl C. Brisan A. Csiszar, M. Drust" ], "authors": [ {"first" : "T.Dietz A. Verl C. Brisan", "last" : "A. Csiszar, M. Drust"} ], "pages": "--","abstract": "In this paper the dynamic path planning with collision avoidance of anindustrial robot is addressed. The Artificial Potential Field (APF) method isused and, as a contribution, it has been expanded with obstacle-chargeshaving different geometrical forms in order to positively influence thegenerated trajectory. Also an analysis method is presented that ensures thatno violation of a specified safety envelope can occur around the obstacles.Implementation of the theoretical consideration and experimental validationusing industrial equipment is shown.", "__markedentry" : "[xtl:6]", "bibtexKey": "A.Csiszar2011" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2c20c0e57ea84b618dce05545487adca9/isw-bibliothek", "tags" : [ "Control,","Hardware","ISW","Loop,","Machining,","errors","in","path","the" ], "intraHash" : "c20c0e57ea84b618dce05545487adca9", "interHash" : "9764c6c0cacb33d853b99bdd9194601a", "label" : "Verification of machine tool functionality by using Hardware in the Loop and manufacturingsimulation, The Fourth Wroclaw CIRP Symposium AP 2003 11-12.12.2003: Verification of machine tool functionality by using Hardware in the Loop and manufacturingsimulation, The Fourth Wroclaw CIRP Symposium AP 2003 11-12.12.2003", "user" : "isw-bibliothek", "description" : "", "date" : "2016-03-03 09:53:12", "changeDate" : "2016-03-03 09:18:35", "count" : 1, "pub-type": "misc", "year": "2003", "url": "", "author": [ "G. Pritschow","S. Röck","B. Korajda" ], "authors": [ {"first" : "G.", "last" : "Pritschow"}, {"first" : "S.", "last" : "Röck"}, {"first" : "B.", "last" : "Korajda"} ], "pages": "--","abstract": "In order to achieve the highest machining precision, errors in a manufacturing unit need to becompensated for. The Hardware in the Loop simulation was designed as a verification andvalidation tool for CNC systems. The technological innovation is that the entire platform,simulated machine and control system, runs under hard real time conditions. The dynamic andcutting path errors can then easily be seen and analysed. A comparison between the visulisationand a physical work piece has proven this simulation method to be valid.", "__markedentry" : "[xtl:6]", "bibtexKey": "PritschowRoeckKorajda2003" } ] }