A Petri net-based inferencenetwork for design automation at functional level applied to mechatronic systems

Erden (Ünsal), Zühal


A Petri net approach to behavioural simulation of design artefacts with application to mechatronic design
Erden, Z; Erden, A; Erkmen, Aydan Müşerref (2003-02-01)
A Petri net-based design inference network (PNDN) architecture is presented in this paper. The network models the logical behaviour of any design artefact developed by designers at the conceptual design level by representing the subfunctions and their inter-relationships to perform a required overall function. The theoretical framework in developing the PNDN is based on the improved theory of Petri nets and hybrid automata. The theoretical PNDN architecture was implemented in a C++ based software called the...
Evaluation of Consulting Firms Selection in Construction Projects by Using Fuzzy Logic
Kazaz, Aynur; Birgönül, Mustafa Talat; Kaplan, Hakan; Acıkara, Turgut; Er, Bayram (2016-05-28)
Construction industry brings different specialization-required disciplines together in a common project. This circumstance complicates finishing a project within a desired time, cost and quality. In recent years, especially non-sector investors have started to employ consulting firms for the design and management of the projects to overcome this problem. Unlike contractor selection process, consulting firm selection process is too complicated for a cost-oriented evaluation. In this sense, different organiza...
The enhancement of the cell-based GIS analyses with fuzzy processing capabilities
Yanar, Tahsin Alp; Akyürek, Sevda Zuhal; Department of Geodetic and Geographical Information Technologies (2003)
In order to store and process natural phenomena in Geographic Information Systems (GIS) it is necessary to model the real world to form computational representation. Since classical set theory is used in conventional GIS software systems to model uncertain real world, the natural variability in the environmental phenomena can not be modeled appropriately. Because, pervasive imprecision of the real world is unavoidably reduced to artificially precise spatial entities when the conventional crisp logic is used...
A fuzzy logic based rippability classification system
Basarir, H.; Karpuz, Celal; TUTLUOĞLU, LEVEND (2007-12-12)
Due to the environmental constraints and the limitations on blasting, ripping as a ground loosening and breaking method has become more popular in both mining and civil engineering applications. Because of the technological advances in dozer manufacturing techniques, more powerful dozer types are available today. Thus, the ground, previously classified as non-rippable, has become rippable. As a consequence, a more applicable rippability classification system is needed which considers both equipment properti...
A complete axiomatization for fuzzy functional and multivalued dependencies in fuzzy database relations
Yazıcı, Adnan (1996-09-11)
In this paper we first introduce a new definition for the conformance of tuples existing in a fuzzy database relation. Then we give the formal definitions of fuzzy functional and multivalued dependencies on the basis of the conformance values presented here. Secondly, we list the inference rules after showing that both fuzzy functional and multivalued dependencies are consistent, that is, they reduce to those of the classic functional and multivalued dependencies when crisp attributes are involved. Finally,...
Citation Formats
Z. Erden (Ünsal), “A Petri net-based inferencenetwork for design automation at functional level applied to mechatronic systems,” Ph.D. - Doctoral Program, Middle East Technical University, 1999.