scholarly journals Optimal shape design in three-dimensional Brinkman flow using asymptotic analysis techniques

2017 ◽  
Vol 75 (3) ◽  
pp. 525-537
Author(s):  
Houcine Meftahi
Keyword(s):  
Asymptotic Analysis ◽  
Three Dimensional ◽  
Optimal Shape ◽  
Shape Design ◽  
Optimal Shape Design ◽  
Analysis Techniques

Multilevel solvers for three-dimensional optimal shape design with an application to magneto-optics

2004 ◽  
Author(s):  
Dalibor Lukas ◽  
Dalibor Ciprian ◽  
Jaromir Pistora ◽  
Kamil Postava ◽  
Martin Foldyna
Keyword(s):  
Three Dimensional ◽  
Optimal Shape ◽  
Shape Design ◽  
Optimal Shape Design

Optimal Electrode Shaping for Precise Modal Electromechanical Filtering

2008 ◽  
Author(s):  
Arie Elka ◽  
Izhak Bucher
Keyword(s):  
Three Dimensional ◽  
Optimization Methods ◽  
Optimal Shape ◽  
Mode Shapes ◽  
Shape Design ◽  
Optimal Filtering ◽  
Optimal Shape Design ◽  
Optimization Scheme ◽  
Sensors And Actuators ◽  
Lumped Models

This paper addresses the optimal shape design of segmented spatial sensors and actuators that excite selected mode shapes and perform modal filtering. In MEMS filters, the input signal is converted to external electrostatic forces and in order to perform the desired filtering, the electrodes need to be shaped such that they excite only a desired part of the dynamics. These electrodes are usually designed according to some simplified theoretical identities, often representing lumped models, where in practice, Micro electromechanical structures dynamics are governed by a three dimensional continuum. An optimization scheme that shapes these electrodes to achieve optimal filtering is developed in this paper. The method provides a trimming methodology that can be performed on a real device and it illustrates the need for suitable modeling. Several simulated examples examine the effectiveness of the proposed optimization methods.

3-D optimal shape design of ferromagnetic pole in MRI magnet of open permanent-magnet type

2002 ◽  
Vol 12 (1) ◽  
pp. 1467-1470 ◽  
Author(s):  
Dong-Hun Kim ◽  
Byung-Sung Kim ◽  
Joon-Ho Lee ◽  
Wan-Soo Nah ◽  
Il-Han Park
Keyword(s):  
Permanent Magnet ◽  
Optimal Shape ◽  
Shape Design ◽  
Optimal Shape Design
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