Results 71 to 80 of about 428,722 (214)
Numerical Study of Vortex-Induced Vibration Characteristics of a Long Flexible Marine Riser
Journal of Marine Science and EngineeringIn ocean engineering, interactions between ocean currents and risers lead to regular vortex shedding on both sides of the riser, causing structural deformation.
Jiahe Zou +5 more
doaj +1 more source
An investigation of structural optimization in crashworthiness design using a stochastic approach
, 2004 In this paper the response surface methodology (RSM) and stochastic optimization (SO) are compared with regard to their efficiency and applicability in crashworthiness design.
Redhe, Marcus, +2 more
core +1 more source
Optimization of the new Saab 9-3 exposed to impact load using a space mapping technique
, 2004 The aim of this work is to illustrate how a space mapping technique using surrogate models together with response surfaces can be used for structural optimization of crashworthiness problems.
Redhe, Marcus,, Nilsson, Larsgunnar,
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Efficient handling of stability problems in shell optimization by asymmetric ‘worst-case’ shape imperfection [PDF]
, 2008 The paper presents an approach to shape optimization of proportionally loaded elastic shell structures under stability constraints. To reduce the stability-related problems, a special technique is utilized, by which the response analysis is always ...
Brank, Boštjan +3 more
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Structural optimization based on internal energy distribution
, 2013 Structural optimization is a valuable tool to improve the performance of products, but it is in general expensive to perform due to the required extensive number of function evaluations.
Oman, Michael,, Nilsson, Larsgunnar,
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A Passive Time Reversal Method with a Metamodel for Underwater Source Localization
Journal of Marine Science and EngineeringA passive time reversal method with a metamodel (PTR-MM) is proposed to improve underwater source localization under ocean conditions. PTR-MM eliminates model mismatch errors by replacing the conventional sound propagation model with a Kriging metamodel.
Jiang Liu, Sheng Li
doaj +1 more source
On the stability of an Optimal Coalition Structure
, 2010 The two main questions in coalition games are 1) what coalitions should form and 2) how to distribute the value of each coalition between its members. When a game is not superadditive, other coalition structures (CSs) may be more attractive than the grand coalition. For example, if the agents care about the total payoff generated by the entire society,
Airiau, S., Sen, S.
openaire +3 more sources
Shape optimization for quadratic functionals and states with random right-hand sides [PDF]
, 2015 International audienceIn this work, we investigate a particular class of shape optimization problems under uncertainties on the input parameters. More precisely, we are interested in the minimization of the expectation of a quadratic objective in a ...
Dambrine, Marc +2 more
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, 2015 Computationally expensive multiobjective optimization problems arise, e.g. in many engineering applications, where several conflicting objectives are to be optimized simultaneously while satisfying constraints.
Sindhya, Karthik +9 more
core +1 more source