Title :
Empirical validation of thermal dynamics in a silicon microthruster: influence of boundary conditions
Author :
Salleras, M. ; García, I. ; Palacin, J. ; Puig, M. ; Samitier, J. ; Marco, S.
Author_Institution :
Departament d´´Electronica, Barcelona Univ., Spain
Abstract :
This paper investigates the influence of boundary conditions on the validation of a dynamic compact thermal model. The applied boundary conditions are used to consider the effect of the non-modelled parts of the microthruster. The values obtained through different optimization processes show the presence of local minima. This effect is overcome through a design of experiments, based on a central composite design. With the response surface fitted to the model error surface, a Monte-Carlo simulation is made, in order to obtain statistical information on the input parameters. Finally, the influence of the selected input parameters on the evolution of some relevant nodes is plotted. The thermal dynamics of these nodes, is to be predicted with a dynamic multiport compact thermal model.
Keywords :
Monte Carlo methods; boundary-value problems; design of experiments; finite element analysis; microactuators; optimisation; response surface methodology; thermal analysis; FEM model; Monte-Carlo simulation; Si; design of experiments; dynamic multiport compact thermal model; microactuators; model error surface; optimization; response surface fitting; silicon microthruster thermal dynamics; thermal dynamics boundary conditions; Boundary conditions; Finite element methods; Material properties; Predictive models; Response surface methodology; Sampling methods; Scattering parameters; Silicon; Solid modeling; Uncertainty;
Conference_Titel :
Thermal and Mechanical Simulation and Experiments in Microelectronics and Microsystems, 2004. EuroSimE 2004. Proceedings of the 5th International Conference on
Print_ISBN :
0-7803-8420-2
DOI :
10.1109/ESIME.2004.1304027
