Computer Aided Instrument to be Used as an Automatic Design Component

Abstract

The paper presents an original method to enhance the productivity of the design activity based on a dimensioning stage which integrates information from various sources: tabular data, diagrams, experimental data and others. The integration of such data in an analytic way is based on an original data processor which interpolates data and outputs diagrams, and outputs information regarding the laws of variation expressed as comma separated values data files, as well as automatically generated source code libraries in C++, Java and MATHLAB/GNU Octave. This automatically generated code is optimized in terms of execution time and it was verified in several applications. The data processor allows the user to visually verify the output data accuracy. The paper also presents some of the applications of the data processor: automatic design, method to enhance the accuracy of computer based calculus for both analytic and numerical methods, conversion of the discontinuous experimental data into laws of variation and experimental data processing in applied elasticity. There are several directions of future research, such as: a more general mathematical approach, development of a more general computer based instrument with increased flexibility and accuracy. Also, a complex software for applied elasticity calculi based on the results of the data processor is under development. Implementation of these applications in commercial CAD/CAE applications is another direction of research.

Original computer method for the experimental data processing in photoelasticity

“…The automatic generated source code may be immediately included in upper level software applications, the necessary interpolation data being embedded in the program. The output general functions given by (1) may be used for upper level operations, such as integration over a domain whose boundaries are defined using spline interpolation functions, [4]. Another upper level software may be a pre-dimensioning program for a given mechanical part which uses an analytic model.…”

“…As it can be noticed, a data processor appears two times in the data processing stages. The interpolation of the curves was done by the use of an original data processor, [4], previously mentioned. Briefly, the input data consists of a set of points defined by their coordinates, ( )…”