Designing wire-rope-based mechanical systems in an expert system environment

1990 ◽  
Vol 6 (3) ◽  
pp. 167-176
Author(s):  
S. A. Velinsky ◽  
M. F. Lembeck
Keyword(s):  
Expert System ◽  
Mechanical Systems ◽  
Wire Rope ◽  
System Environment

Automated Synthesis of MEMS Fabrication Sequences Using Graph Grammars

2007 ◽  
Author(s):  
Saneet A. Jawalkar ◽  
Matthew I. Campbell
Keyword(s):  
Expert System ◽  
Machine Tool ◽  
Mechanical Systems ◽  
Automated Synthesis ◽  
Manufacturing Constraints ◽  
Graph Grammars ◽  
Mems Fabrication ◽  
Grammar Rules ◽  
Design Software ◽  
Automated Process

The design of any MEMS component is subject to stringent manufacturing constraints. The knowledge about these constraints seems to be available to designers who have experienced the details of MEMS fabrication. In this paper, we put forth the idea of automatically generating a fabrication sequence for surface micro-machined MEMS components using the knowledge stored in grammar rules. As an analogy to CAD tools used in mechanical systems, we envision creating a tool which has the Pro-Engineer approach of determining fabrication sequences for a machine tool based on the final part shape. This tool could be an integral addition to the current MEMS design software so that the designers can freely draft devices and then allow an automated process to determine the fabrication sequence. In this paper we give a brief introduction about the graph grammars. Data from already designed MEMS components is extracted in the form of rules to create an expert system. We have also included an example of generation of the fabrication sequence for several MEMS components.

scholarly journals Experimental Investigations Regarding the Structural Damage Monitoring of Strands Wire Rope within Mechanical Systems

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3439
Author(s):  
Carmen Debeleac ◽  
Silviu Nastac ◽  
Gina Diana Musca (Anghelache)
Keyword(s):  
Structural Damage ◽  
Structural Integrity ◽  
Mechanical Systems ◽  
Wire Rope ◽  
Experimental Investigations ◽  
Post Processing ◽  
Wire Ropes ◽  
Damage Monitoring ◽  
Complex Wavelet ◽  
Wavelet Coherency

This paper deals with the area of structural damage monitoring of steel strands wire ropes embedded into various equipment and mechanical systems. Of the currently available techniques and methods for wire ropes health monitoring, the authors focused on the group of techniques based on operational dynamics investigation of such systems. Beyond the capability and efficiency of both occasionally and continuously monitoring application, the dynamics-based methods are able to provide additional information regarding the structural integrity and functional operability of the entire ensemble embedding the wire ropes. This paper presents the results gained by the authors using a laboratory setup that can simulate the operational condition usually used for regular applications of wire ropes. The investigations were conducted on three directions of acquired signals post-processing. Firstly, the classical fast Fourier transform was used to evaluate the potential changes within the spectral distribution of transitory response. The other two directions involved high-order spectral analyses in terms of bi-spectrum and Wigner–Ville distribution and multi-scale analysis based methods such as complex wavelet cross-correlation and complex wavelet coherency. The results indicate that each direction of analysis can provide suitable information regarding potential wire rope damage, but the ensemble of post-processing methods offers supplementary precision.

Toward an integrated CFD expert system environment

1998 ◽  
Author(s):  
Leonard Wesley ◽  
Janet Lee ◽  
Laura Rodman ◽  
Robert Childs
Keyword(s):  
Expert System ◽  
System Environment

A real time expert system environment for process control

1991 ◽  
Vol 24 (10) ◽  
pp. 19-25 ◽  
Author(s):  
A. Crespo ◽  
J.L. Navarro ◽  
R. Vivó ◽  
A. García ◽  
A. Espinosa
Keyword(s):  
Expert System ◽  
Process Control ◽  
Real Time ◽  
System Environment
Sign in / Sign up

Export Citation Format

Share Document