Efficient reliability-based design optimization for microelectromechanical systems

2019-12-13 05:04

Nov 15, 2008 For systems of practical interest, the repeated evaluation of dynamic responses can be extremely time consuming. From an optimization point of view, reliabilitybased optimization problems can be characterized as twolevel optimization problems. Level one is the overall optimization in the design variables, and level two is the reliabilityThis paper is focused on the development of an efficient reliabilitybased design optimization algorithm for solving problems posed on uncertain linear dynamic systems characterized by large design variable vectors and driven by nonstationary stochastic excitation. efficient reliability-based design optimization for microelectromechanical systems

Request PDF on ResearchGate Efficient ReliabilityBased Design Optimization for Systems The miniaturization of systems (MEMS) makes cheaper

ReliabilityBased Optimization (RBO) for engineering design deals mainly with two design attributes, namely the merit, for example cost, and the reliability of the design. In this work the class of design problems which are considered, are designs characterized by a minimum merit function and that satisfy certain reliability constraints. engineering simulations or manufacturing processes calls for a reliabilitybased design optimization (RBDO) model for robust and costeffective designs. In the RBDO model for robust system parameter design, the mean values of the random system parameters are usually used as design variables, and the cost is optimized efficient reliability-based design optimization for microelectromechanical systems Efficient ReliabilityBased Design Optimization for Systems Abstract: The miniaturization of systems (MEMS) makes cheaper products (due to less chip size consumption) and new applications, e. g. , in chip cards, possible. With further miniaturization, however, the influence of manufacturing variances

In conjunction with a MEMS resonator model the SigmaPoint approach turns out to be four orders of magnitude faster than an equivalent MC calculation. Therefore, it is optimally suited for an efficient reliabilitybased design optimization (RBDO). efficient reliability-based design optimization for microelectromechanical systems ReliabilityBased Design Optimization for Shape Design of Compliant Systems B. M. Adams, M. S. Eldred, and J. W. Wittwer, Sandia National Laboratories, Albuquerque, NM Reliability methods are probabilistic algorithms May 21, 2009 The increased use of systems (MEMS) as key components for actuation and sensing purposes in novel devices and systems emphasizes the need for optimal design methods. This study proposes a reliability based design optimization methodology for the design of geometrically complex electrostatically actuated MEMS. The

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