Niching genetic algorithm adopting restricted competition selection combined with pattern search method

2002 ◽  
Vol 38 (2) ◽  
pp. 1001-1004 ◽  
Author(s):  
Jae-Kwang Kim ◽  
Dong-Hyeok Cho ◽  
Hyun-Kyo Jung ◽  
Cheol-Gyun Lee
Keyword(s):  
Genetic Algorithm ◽  
Search Method ◽  
Pattern Search ◽  
Pattern Search Method

Simplified Model for the Activated Sludge System: WWTP Cost Minimization via an Augmented Lagrangian Pattern Search Method

2010 ◽  
Author(s):  
Isabel A. C. P. Espírito Santo ◽  
Edite M. G. P. Fernandes ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
Ch. Tsitouras
Keyword(s):  
Activated Sludge ◽  
Augmented Lagrangian ◽  
Cost Minimization ◽  
Search Method ◽  
Pattern Search ◽  
Simplified Model ◽  
Pattern Search Method ◽  
Activated Sludge System

Pattern Search Method for Discrete L 1–Approximation

2007 ◽  
Vol 134 (1) ◽  
pp. 47-59 ◽  
Author(s):  
C. Bogani ◽  
M. G. Gasparo ◽  
A. Papini
Keyword(s):  
Search Method ◽  
Pattern Search ◽  
Pattern Search Method

scholarly journals Stiffness Compensation in Hand Prostheses With Cosmetic Coverings Using Statically Balanced Mechanisms

2010 ◽  
Vol 4 (2) ◽  
Author(s):  
Nima Tolou ◽  
Gerwin Smit ◽  
Ali Asadi Nikooyan ◽  
Dick Plettenburg ◽  
Just Herder
Keyword(s):  
High Power ◽  
Efficient Solution ◽  
Nonlinear Behavior ◽  
Search Method ◽  
Pattern Search ◽  
Optimized Design ◽  
Nonlinear Stiffness ◽  
Disabled People ◽  
Pattern Search Method

Although hand prostheses with a cosmetic covering are commercially available for disabled people, the operating effort due to the stiffness of the mechanism is high. This results in high power requirements. This paper aims to present a new concept of mechanisms for the compensation of the nonlinear stiffness of hand prostheses by using statically balanced mechanisms with a nonlinear behavior. This concept was based on a combination of stability phases of snap-through buckling in bistable spring mechanisms to create the nonlinear balancing force. To demonstrate the efficiency of the concept, an optimized design for a case study of a child-sized hand prosthesis is also presented. A pattern search method was applied for the optimization. As a result, the calculated stiffness and, thereby, the operating effort was reduced by 96%. It can be concluded from the conceptual and numerical results that the presented concept provides a highly efficient solution to the discussed problem.

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