Refine
Year of publication
- 2004 (323) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (85)
- Fachbereich Wirtschaftswissenschaften (37)
- Fachbereich Elektrotechnik und Informationstechnik (35)
- Fachbereich Energietechnik (35)
- INB - Institut für Nano- und Biotechnologien (35)
- IfB - Institut für Bioengineering (30)
- Fachbereich Maschinenbau und Mechatronik (24)
- Fachbereich Luft- und Raumfahrttechnik (23)
- Fachbereich Bauingenieurwesen (20)
- Fachbereich Chemie und Biotechnologie (15)
Language
- English (161)
- German (160)
- Portuguese (2)
Document Type
- Article (214)
- Conference Proceeding (37)
- Book (35)
- Lecture (6)
- Report (6)
- Part of a Book (5)
- Doctoral Thesis (4)
- Patent (4)
- Study Thesis (4)
- Other (3)
Keywords
- Bauingenieurwesen (4)
- Betriebswirtschaftslehre (4)
- Bologna-Prozess (4)
- CAD (4)
- ECTS (4)
- Filmregie (4)
- Finanzierung (4)
- Liquiditätspolitik (4)
- civil engineering (4)
- Aachen University of Applied Sciences (3)
Applications of Graph Transformations with Industrial Relevance Lecture Notes in Computer Science, 2004, Volume 3062/2004, 90-105, DOI: 10.1007/978-3-540-25959-6_7 In this paper we discuss how tools for conceptual design in civil engineering can be developed using graph transformation specifications. These tools consist of three parts: (a) for elaborating specific conceptual knowledge (knowledge engineer), (b) for working out conceptual design results (architect), and (c) automatic consistency analyses which guarantee that design results are consistent with the underlying specific conceptual knowledge. For the realization of such tools we use a machinery based on graph transformations. In a traditional PROGRES tool specification the conceptual knowledge for a class of buildings is hard-wired within the specification. This is not appropriate for the experimentation platform approach we present in this paper, as objects and relations for conceptual knowledge are due to many changes, implied by evaluation of their use and corresponding improvements. Therefore, we introduce a parametric specification method with the following characteristics: (1) The underlying specific knowledge for a class of buildings is not fixed. Instead, it is built up as a data base by using the knowledge tools. (2) The specification for the architect tools also does not incorporate specific conceptual knowledge. (3) An incremental checker guarantees whether a design result is consistent with the current state of the underlying conceptual knowledge (data base).
Planwirtschaft
(2004)
Improved collapse loads of thick-walled, crack containing pipes and vessels are suggested. Very deep cracks have a residual strength which is better modelled by a global limit load. In all burst tests, the ductility of pressure vessel steels was sufficiently high whereby the burst pressure could be predicted by limit analysis with no need to apply fracture mechanics. The relative prognosis error increases however, for long and deep defects due to uncertainties of geometry and strength data.