Reverse Engineering with Shape Optimization using Workflow-Based Computation and Distributed Computing

Vucina, Damir; Lozina, Zeljan; Pehnec, Igor
January 2009
World Congress on Engineering 2009 (Volume 1);2009, p789
Shape optimization is numerically a very demanding process, where several traditionally separate numerical processes meet together in a heterogeneous multidisciplinary environment. Typical elements involved are (1) the optimizer itself that implements the selected search strategy, (2) the parameterization procedure that provides the bidirectional mapping interface between the 3D geometric shape of the object and a limited number of parameters that control the parametric model of the geometry, (3) the simulation program that provides the results of the simulated interaction between the object and its environment (such as finite element analysis, FEA), and (4) control procedures that monitor the overall workflow and invoke mutual application calls (process flows and data flows) and handle data mining as well as acceptance or rejection of individual instances of candidate designs which are numerically generated and analyzed. In this paper, the set-up of this complex process, combined with evolutionary optimization, is developed with the objectives of numerical flexibility, computational efficiency in terms of combining sequential and parallel execution of individual applications, and low-cost implementation within an unmanaged computer cluster based on the Windows Communication Foundation, WCF.


Related Articles

  • On the Properties of Connotation GM(1,1) Model. Yao Tianxiang; Gong Zaiwu; Liu Sifeng // Journal of Grey System;2010, Vol. 22 Issue 1, p5 

    Traditional GM(1,1) model has many kinds of forms such as connotation type. Based on the theoretical proofs and numerical examples. this paper studied the relatidnship between traditional GM(1,1) model and connotation GM(1,1) model (CGM) and the properties of CGM. The results indicate CGM model...

  • Globally Optimized Spherical Point Arrangements: Model Variants and Illustrative Results. Pinté, János D. // Annals of Operations Research;2001, Vol. 104 Issue 1-4, p213 

    The ‘well-balanced’ distribution of points over the surface of a sphere is of significant interest in various fields of science. The quality of point configurations is typically expressed by criterion functions that have many local optima. A general global optimization framework is...

  • ON OPTIMAL REDUNDANCY! Black, Guy; Prosehan, Frank // Operations Research;Sep/Oct59, Vol. 7 Issue 5, p581 

    A complex system is to be placed in the field for a fixed period. During the period only the spares initially provided may be used to replace components that have failed Independence of failures is assumed among the essential components considered. Given the cost of components, the number of...

  • Modeling and Simulation of a Chemical Vapor Deposition. Geiser, J.; Arab, M. // Journal of Applied Mathematics;2011, Special section p1 

    We are motivated to model PE-CVD (plasma enhanced chemical vapor deposition) processes for metallic bipolar plates, and their optimization for depositing a heterogeneous layer on the metallic plate. Moreover a constraint to the deposition process is a very low pressure (nearly a vacuum) and a...

  • Implementation of A Geometric Constraint Regularization For Multibody System Models. Müller, Andreas // Archive of Mechanical Engineering;2014, Vol. 61 Issue 2, p365 

    Redundant constraints in MBS models severely deteriorate the computational performance and accuracy of any numerical MBS dynamics simulation method. Classically this problem has been addressed by means of numerical decompositions of the constraint Jacobian within numerical integration steps....

  • Analyses of kinematics, statics, and workspace of a 3-RRPRR parallel manipulator and its three isomeric mechanisms. Hu, B.; Lu, Y. // Proceedings of the Institution of Mechanical Engineers -- Part C;Sep2008, Vol. 222 Issue 9, p1829 

    A novel 3-RRPRR parallel manipulator with three pure translational movements and a relative larger workspace is proposed. Its three isomeric mechanisms 3-RRPU, 3-RPRU, and 3-UPU with three pure translational movements are constructed by varying dimensions of some links. Their common kinematic...

  • Numerical and experimental studies of split ring resonators loaded on the sidewalls of rectangular waveguides. Quevedo-Teruel, O.; Rajo-Iglesias, E.; Ng Mou Kehn, M. // IET Microwaves, Antennas & Propagation;Dec2009, Vol. 3 Issue 8, p1262 

    This work investigates the use of a lattice comprising split ring resonators (SRRs) as a negative permeability medium to achieve backward travelling modes within a rectangular waveguide. The loadings of such SRR-type periodic structures into a waveguide can be tailored such that the backward...

  • Optimization of Spatial and Minimum Storage RK Schemes for Computational Acoustics. Calvo, M.; Franco, J. M.; Montijano, J. I.; Rández, L. // AIP Conference Proceedings;9/9/2009, Vol. 1168 Issue 1, p743 

    In this paper, new finite difference schemes for the spatial discretization and time advancing RK schemes for the numerical simulation of Computational Aero-Acoustic problems are derived. The new schemes are designed taking into account not only the standard accuracy and stability properties but...

  • Slider-link driven compressor (I). Mathematical model. Dagilis, V.; Vaitkus, L.; Kirejchick, D. // Mechanika;2006, Vol. 62 Issue 6, p25 

    The presented mathematical model is targeted for the optimization of slider-link driven compressor, i.e. for the selection of such geometrical parameters (piston stroke to diameter ratio, piston eccentricity, clearance between the piston and the cylinder, etc.), which will ensure the highest...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics