Integrating negative dependencies assessment during mechatronics conceptual design using fuzzy logic and quantitative graph theory

Mechatronics ◽  
2019 ◽  
Vol 59 ◽  
pp. 140-153 ◽  
Author(s):  
Ugo Chouinard ◽  
Sofiane Achiche ◽  
Luc Baron
Keyword(s):  
Fuzzy Logic ◽  
Graph Theory ◽  
Conceptual Design

Augmenting Conceptual Design Trajectory Tradespace Exporation with Graph Theory

2016 ◽  
Author(s):  
Patrick D. Dees ◽  
Matthew R. Zwack ◽  
Stephen Edwards ◽  
Michael J. Steffens
Keyword(s):  
Graph Theory ◽  
Conceptual Design

scholarly journals Reducing the Amount of Data for Creating Routes in a Dynamic DTN via Wi-Fi on the Basis of Static Data

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Yulia Shichkina ◽  
Alexander Koblov
Keyword(s):  
Fuzzy Logic ◽  
Graph Theory ◽  
Data Processing ◽  
Large Volume ◽  
Moving Objects ◽  
Static Data ◽  
Object Movement ◽  
Data Volume ◽  
Using Data ◽  
Incorrect Information

This article presents the results of research on the acceleration of data processing in the construction routing in dynamic DTN, realized through the devices established in moving objects and connected by means of Wi-Fi. The routes are constructed based on the prehistory of the movement of objects, which is stored in the database in the csv format. This database has a large volume and contains unnecessary and incorrect information. The article shows the possibility of speeding up the process of constructing routes using data precleaning. Reducing data volume is proposed by constructing an enlarged grid on the object movement map. This article also demonstrates the use of fuzzy logic and graph theory for constructing routes.

A New Approach to Conceptual Design Based on Path Decomposition of Digraph

2011 ◽  
Vol 52-54 ◽  
pp. 73-78
Author(s):  
De Zhen Zhang ◽  
Wei Shi Zhang ◽  
Jian Ming Zhang
Keyword(s):  
Graph Theory ◽  
Conceptual Design ◽  
Design Process ◽  
Basic Element ◽  
New Approach ◽  
Path Decomposition ◽  
Single Mechanism ◽  
Feasible Solutions

A new approach to conceptual design based on path decomposition of digraph is presented in the paper. The set of basic mechanisms is firstly defined and every single mechanism is taken as a basic element in the set. The relationships among basic elements are described with paths or loops in the graph theory. Therefore, the conceptual design can be visualized as searching a suitable loop in the set of basic mechanisms. The digraph and the path decomposition in the graph theory are applied to represent solutions of conceptual design, such as the sequence, existence and the concatenation formation and repetition. And then, an illation formula is derived and a construction tree of conceptual design process is provided. The generated schemes are further filtered using character restriction operation which followed corresponding rules, so as to identify feasible solutions. Finally, a design example is given to demonstrate the effectiveness of the proposed approach.

Kinematic Synthesis of Deployable-Foldable Truss Structures Using Graph Theory, Part 1: Graph Generation

1995 ◽  
Vol 117 (1) ◽  
pp. 112-116 ◽  
Author(s):  
D. B. Warnaar ◽  
M. Chew
Keyword(s):  
Graph Theory ◽  
Conceptual Design ◽  
Design Process ◽  
Degrees Of Freedom ◽  
Truss Structure ◽  
Truss Structures ◽  
Structural Synthesis ◽  
Deployable Structures ◽  
Kinematic Synthesis ◽  
Graph Generation

Kinematic structural synthesis has been relatively successful when applied to the conceptual design of mechanisms. The approach presented in this paper, however, views the design process from an initial standpoint of a truss structure. First, graphs are generated that represent truss structures with a given number of nodes and links. Each graph is then modified by designating certain edges in the graph to represent links in the structure that incorporate additional degrees of freedom. In so doing, the graph of a structure is transformed into one representing a mechanism. A procedure is presented that enables the exhaustive generation of these graphs for deployable structures of any given number of nodes and links. From these graphs, it is then possible to obtain enumerable novel deployable truss structures as well as those that have been reported in the literature.

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