@inproceedings{Krasnov, author = {Krasnov, Yakov}, title = {ANALYTIC FUNCTIONS IN OPERATOR VARIABLES AS SOLUTION TO PDES}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.2982}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29822}, pages = {16}, abstract = {Procedures of a construction of general solutions for some classes of partial differential equations (PDEs) are proposed and a symmetry operators approach to the raising the orders of the polynomial solutions to linear PDEs are develops. We touch upon an ''operator analytic function theory'' as the solution of a frequent classes of the equations of mathematical physics, when its symmetry operators forms vast enough space. The MAPLE© package programs for the building the operator variables is elaborated also.}, subject = {Architektur }, language = {en} } @inproceedings{KoenigLang, author = {K{\"o}nig, Markus and Lang, H.}, title = {ANWENDUNG DES CASE-BASED REASONING BEI DER ERMITTLUNG VON VARIANTEN F{\"u}R DEN OBERBAU VON VERKEHRSFL{\"A}CHEN}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.2980}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29808}, pages = {9}, abstract = {F{\"u}r die Ausf{\"u}hrung des Oberbaus von Verkehrsfl{\"a}chen existiert in Abh{\"a}ngigkeit von projektspezifischen Voraussetzungen eine Vielzahl von verschiedenen Varianten. Aufgrund von Erfahrungen der Projektplaner werden bei {\"a}hnlichen Voraussetzungen h{\"a}ufig gleichartige Ausf{\"u}hrungsvarianten gew{\"a}hlt. Um eine m{\"o}gliche L{\"o}sungsvariante f{\"u}r den Straßenoberbau zu erhalten, sollten daher nicht nur die gesetzlichen Richtlinien sondern auch bereits beendete Projekte ber{\"u}cksichtigt werden. Im Rahmen eines Wissenschaftlichen Kollegs an der Bauhaus-Universit{\"a}t Weimar wurde die Anwendung des Case-Based Reasoning f{\"u}r die Auswahl von Ausf{\"u}hrungsvarianten f{\"u}r den Straßenoberbau untersucht. In diesem Beitrag werden die grundlegenden Konzepte des Case-Based Reasoning und die Bestimmung von {\"a}hnlichen Varianten anhand einfacher Beispiele aus dem Straßenoberbau dargestellt.}, subject = {Architektur }, language = {de} } @inproceedings{MisyuraVolkova, author = {Misyura, E. and Volkova, Viktorija}, title = {APPLICATION OF THE MATHEMATICAL METHODS TO INVESTIGATION OF DYNAMICAL PROPERTIES OF A CABLE}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3031}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30313}, pages = {7}, abstract = {The paper is devoted to the investigation of dynamical behavior of a cable under influence of various types of excitations. Such element has a low rigidity and is sensitive to dynamic effect. The structural scheme is a cable which ends are located at different level. The analysis of dynamical behavior of the cable under effect of kinematical excitation which is represented by the oscillations of the upper part of tower is given. The scheme of cable is accepted such, that lower end of an inclined cable is motionless. The motion of the upper end is assumed only in horizontal direction. The fourth-order Runge-Kutta method was realized in software. The fast Fourier transform was used for spectral analysis. Standard graphical software was adopted for presenting results of investigations. The mathematical model of oscillations of a cable was developed by the account of the viscous damping. The analysis of dynamical characteristics of a cable for various parameters of damping and kinematical excitation was carried out. The time series, spectral characteristics and amplitude-frequencies characteristics was obtained. The resonance amplitude for different oscillating regimes was estimated. It is noted that increasing of the coefficient of the viscous damping and decreasing of the amplitude of tower's oscillations reduces the value of the critical frequency and the resonant amplitudes.}, subject = {Architektur }, language = {en} } @inproceedings{KraussharConstalesGuerlebecketal., author = {Kraußhar, Rolf S{\"o}ren and Constales, Denis and G{\"u}rlebeck, Klaus and Spr{\"o}ßig, Wolfgang}, title = {APPLICATIONS OF QUATERNIONIC ANALYSIS IN ENGINEERING}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.2912}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29128}, pages = {8}, abstract = {The quaternionic operator calculus can be applied very elegantly to solve many important boundary value problems arising in fluid dynamics and electrodynamics in an analytic way. In order to set up fully explicit solutions. In order to apply the quaternionic operator calculus to solve these types of boundary value problems fully explicitly, one has to evaluate two types of integral operators: the Teodorescu operator and the quaternionic Bergman projector. While the integral kernel of the Teodorescu transform is universal for all domains, the kernel function of the Bergman projector, called the Bergman kernel, depends on the geometry of the domain. Recently the theory of quaternionic holomorphic multiperiodic functions and automorphic forms provided new impulses to set up explicit representation formulas for large classes of hyperbolic polyhedron type domains. These include block shaped domains, wedge shaped domains (with or without additional rectangular restrictions) and circular symmetric finite and infinite cylinders as particular subcases. In this talk we want to give an overview over the recent developments in this direction.}, subject = {Architektur }, language = {en} } @inproceedings{Volkova, author = {Volkova, Viktorija}, title = {APPLICTION OF THE PHASE TRAJECTORIES MAPPING TO IDENTIFICATION}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3032}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30329}, pages = {7}, abstract = {The reduction of oscillation amplitudes of structural elements is necessary not only for maintenance of their durability and longevity but also for elimination of a harmful effect of oscillations on people and technology operations. The dampers are widely applied for this purpose. One of the most widespread models of structural friction forces having piecewise linear relation to displacement was analysed. T The author suggests the application of phase trajectories mapping in plane "acceleration - displacement". Unlike the trajectories mapping in a plane "velocity - displacement", they don't require large number of geometrical constructions for identification of the characteristics of dynamic systems. It promotes improving the accuracy. The analytical assumptions had been verified by numerical modeling. The results show good enough coincide between numerical and analytical estimation of dissipative characteristic.}, subject = {Architektur }, language = {en} } @inproceedings{GruberValdman, author = {Gruber, Peter and Valdman, J.}, title = {APPROXIMATE SOLUTION OF ELASTOPLASTIC PROBLEMS BASED ON THE MOREAU-YOSIDA THEOREM}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.2960}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29602}, pages = {8}, abstract = {We propose a new approach to the numerical solution of quasi-static elastic-plastic problems based on the Moreau-Yosida theorem. After the time discretization, the problem is expressed as an energy minimization problem for unknown displacement and plastic strain fields. The dependency of the minimization functional on the displacement is smooth whereas the dependency on the plastic strain is non-smooth. Besides, there exists an explicit formula, how to calculate the plastic strain from a given displacement field. This allows us to reformulate the original problem as a minimization problem in the displacement only. Using the Moreau-Yosida theorem from the convex analysis, the minimization functional in the displacements turns out to be Frechet-differentiable, although the hidden dependency on the plastic strain is non-differentiable. The seconds derivative exists everywhere apart from the elastic-plastic interface dividing elastic and plastic zones of the continuum. This motivates to implement a Newton-like method, which converges super-linearly as can be observed in our numerical experiments.}, subject = {Architektur }, language = {en} } @article{Picon2003, author = {Picon, Antoine}, title = {Architecture and the virtual : towards a new materiality?}, doi = {10.25643/bauhaus-universitaet.1236}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080227-13031}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architektur}, language = {en} } @inproceedings{HauschildHuebler2000, author = {Hauschild, Thomas and H{\"u}bler, Reinhard}, title = {Aspekte der verteilten Bauwerksmodellierung in kooperativen Entwurfsumgebungen auf Basis dynamischer Objektstrukturen}, doi = {10.25643/bauhaus-universitaet.591}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5912}, year = {2000}, abstract = {Entwurfsprozesse im Bauwesen sind hochgradig kooperative Prozesse mit alternierenden Phasen asynchroner und synchroner Teamarbeit. Die Informationen {\"u}ber den aktuellen Entwurfsgegenstand k{\"o}nnen als Objektstrukturen modelliert werden, die in entsprechenden Modellverwaltungssystemen gespeichert werden. Bei der Realisierung von kooperativ nutzbaren Umgebungen f{\"u}r den Bauwerksentwurf sind jedoch bei der Auswahl von Basistechniken spezifische Anforderungen von CSCW-Applikationen zu beachten, die bestimmte traditionelle Verfahren nicht erf{\"u}llen. Neben verschiedenen Auswirkungen auf das Interaktionsverhalten der Entwurfsumgebung spielt die cooperation awareness der eingesetzten Mechanismen eine bedeutende Rolle. Mechanismen zur Zugriffskontrolle sind in netzwerkbasierten Mehrbenutzerumgebungen essentiell, jedoch sind herk{\"o}mmliche Verfahren zu unflexibel und nicht hinreichend ausdrucksstark. Eine adaptierte und erweiterte Variante des Matrixverfahrens ist f{\"u}r die Anwendung in Modellverwaltungssystemen geeignet. Ebenso muss bei der Auswahl von Mechanismen zur Nebenl{\"a}ufigkeitskontrolle Augenmerk auf dessen Eignung in Groupware-Systemen gelegt werden. Bei der Unterst{\"u}tzung asynchroner Kooperation k{\"o}nnen Lock-Verfahren auf die Informationen in Modellverwaltungssystemen angewandt werden. F{\"u}r die Applikationen f{\"u}r synchrone Teamarbeit m{\"u}ssen derartige Mechanismen auf die gemeinsamen Informationsbest{\"a}nde sowie auf Systemressourcen der Entwurfsumgebung angewendet werden. Hierf{\"u}r sind floor-passing'-Verfahren geeignet; die Anwendbarkeit von Transformationsverfahren sollte f{\"u}r die konkret umzusetzende Applikation gepr{\"u}ft werden.}, subject = {Bauwerk}, language = {de} } @inproceedings{Wittenberg, author = {Wittenberg, Reinhold}, title = {AUFBAU EINES MANAGEMENT-INFORMATIONS-SYSTEMS (M-I-S) UND BAUSTELLEN-CONTROLLINGS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3035}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30356}, pages = {7}, abstract = {Die meisten Insolvenzen in Deutschland kommen aus der Bauindustrie. Die Gr{\"u}nde hierf{\"u}r sind vielschichtig, jedoch kann mittels eines modern ausgerichteten M-I-S und Baustellen-Controllings fr{\"u}hzeitig erkannt werden, wie sich die Baustellenergebnisse entwickeln. Hierzu ist es notwendig, dass die Arbeitskalkulation st{\"a}ndig auf dem Laufenden gehalten wird. Nur wenn dies geschieht, sind monatliche Soll-/ Ist-Vergleiche und eine Betrachtung der cost-to-complete m{\"o}glich und sinnvoll. Eine monatlich rollierende Prognose des Baustellenergebnisses zum Bauende erm{\"o}glicht, dass gravierende Ver{\"a}nderungen des Ergebnisses umgehend aufgedeckt werden. Nur in Kenntnis dieser Entwicklungen kann das Management fr{\"u}hzeitig (im Sinne eines Fr{\"u}hwarnsystems) agieren und Steuerungsmaßnahmen ergreifen. Die Ergebnisprognose zum Bauende ist allein als Steuerungsinstrument nicht ausreichend. Die Finanzsituation der Baustelle muß auch regelm{\"a}ßig gepr{\"u}ft werden, d.h. der Leistungsstand mit der Rechnungsstellung an den Bauherren abgeglichen sowie die unbezahlten Rechnungen des Bauherren {\"u}berpr{\"u}ft werden. Das beste Prognoseergebnis ist wertlos, wenn der Bauherr seine bezogenen Leistungen nicht verg{\"u}tet. Die wirtschaftlichen Daten stehen den Verantwortlichen online im Baustellen-Informations-System (B-I-S) zur Verf{\"u}gung. Ein Ampelsystem verdeutlicht die wirtschaftliche Lage der Baustelle.}, subject = {Architektur }, language = {de} } @inproceedings{RichterDonath, author = {Richter, Katharina and Donath, Dirk}, title = {AUGMENTING DESIGNERS MEMORY - REVISAL OF THE CASE-BASED REASONING PARADIGM IN ARCHITECTURAL EDUCATION AND DESIGN}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3004}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30047}, pages = {5}, abstract = {This research focuses on the Case-based Reasoning paradigm in architectural design (CBD) and education. Initial point for further exploring this only seemingly comprehensive investigated field of research constitutes the finding that promising looking concepts exist but that they do not play a role in daily routine of designing architects or in university education. In search of reasons for this limited success a critical review of the CBR approach to architectural education and design was performed. The aim was to identify gaps in the CBD research and to discover potential fields of research within CBR research in architectural education and design to improve acceptance and practical suitability. Two major shortcomings could be identified. In the first place the way retrieval mechanisms of systems under investigation relate to the needs of architectural designers and students. At second: Successful CBD systems rely on the work of third-parties in sharing their experiences with others and filling the databases with relevant cases. Therefore two questions remain unanswered: The question of which projects become part of the database and how get existing projects not only described but evaluated. This is an essential task and prerequisite to meet the requirements of the underlying theory of CBR.}, subject = {Architektur }, language = {en} }