Results 201 to 210 of about 545,477 (248)
Some of the next articles are maybe not open access.
Robust and Reliability-Based Design Optimization Framework for Wing Design
AIAA Journal, 2012This paper presents the outline of a framework for simultaneous analysis and robustness and reliability calculations in aircraft design optimization, with the option of employing surrogate models. Robust Design Optimization and Reliability Based Design Optimization are merged into a unied formulation which simplies the setup of optimization problems ...
Ricardo Paiva +2 more
openaire +1 more source
New Approach for System Reliability-Based Design Optimization
AIAA Journal, 2005<div class="htmlview paragraph">An efficient approach for Reliability-Based Design Optimization (RBDO) of series systems is presented. A modified formulation of the RBDO problem is employed in which the required reliabilities of the failure modes of a system are design variables.
Mazen A. Ba-abbad +2 more
openaire +1 more source
Reliability Based Design Optimization Using Automatic Differentiation
Volume 9: Transportation Systems; Safety Engineering, Risk Analysis and Reliability Methods; Applied Stochastic Optimization, Uncertainty and Probability, 2011Typically, a reliability based design optimization (RBDO) problem is solved as a nested optimization problem because an evaluation of the probabilistic constraint(s) involves solving a minimization problem. Over the years, a number of algorithms have been developed to solve the RBDO problem efficiently.
K. Pugazhendhi, A. K. Dhingra
openaire +1 more source
Robust Reliability-based Design Optimization of Suspension Bridges
2004Design rules for modern cable suspension bridges are developed using reliability theories inside a general risk management based framework. In this context, optimal structural design must be considered under the presence of uncertainties in loading, geometry and material properties, whereas the deterministic approaches of optimization neglect the ...
BIONDINI, FABIO +3 more
openaire +3 more sources
Reliability‐based design optimization with dependent interval variables
International Journal for Numerical Methods in Engineering, 2012SUMMARYReliability‐based design optimization (RBDO) ensures design requirements are satisfied at required reliability levels in the presence of uncertainty. The recent RBDO methodologies can accommodate two types of uncertainty – aleatory type, represented by random variables, and epistemic type, represented by interval variables.
openaire +1 more source
Epistemic uncertainty in reliability-based design optimization
2012 Proceedings Annual Reliability and Maintainability Symposium, 2012Reliability-based design optimization (RBDO) needs to take into account of both aleatory and epistemic uncertainties. It is critical to explore these uncertainty sources and evaluate their impacts on RBDO. This paper provides a comprehensive study of uncertainties, in which the uncertainty sources are listed, categorized and their impacts are discussed.
Xiaotian Zhuang, Rong Pan
openaire +1 more source
An integral method for Reliability-Based design Optimization
Computer Methods in Applied Mechanics and EngineeringzbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhenzhong Chen +6 more
openaire +1 more source
Reliability‐based design optimization with equality constraints
International Journal for Numerical Methods in Engineering, 2007AbstractEquality constraints have been well studied and widely used in deterministic optimization, but they have rarely been addressed in reliability‐based design optimization (RBDO). The inclusion of an equality constraint in RBDO results in dependency among random variables.
Xiaoping Du, Beiqing Huang
openaire +1 more source
Interactive Reliability-Based Optimal Design
1994Interactive design/optimization of large, complex structural systems is considered. The objective function is assumed to model the expected costs. The constraints are reliability-based and/or related to deterministic code requirements. Solution of this optimization problem is divided in four main tasks, namely finite element analyses, sensitivity ...
Sørensen, John Dalsgaard +4 more
openaire +1 more source
Reliability-based design optimization of stiffened panels
Fourth International Symposium on Uncertainty Modeling and Analysis, 2003. ISUMA 2003., 2004We explore reliability-based designs of isogrid stiffened panels. Uncertainties in material properties and geometric manufacturing uncertainties are represented by random variables. Due to the multiple failure modes in the stiffened panels, polynomial response surface approximation are fit to the most critical safety margins in the panel.
null Xueyong Qu, R.T. Haftka
openaire +1 more source