Results 11 to 20 of about 225,573 (166)
Aerospace, 2023 Compared with traditional wings equipped with conventional control surfaces, variable-camber morphing wings have become a hot research topic in the field of aviation due to their ability to maintain a smooth and continuous overall shape while ensuring ...
Sijia Jia +4 more
doaj +1 more source
Shape Optimization of Gravity Dams Using a Nature-Inspired Approach [PDF]
Journal of Soft Computing in Civil Engineering, 2020 In water infrastructures design problems, small changes in their geometries lead to a major variation in the construction time and costs. Dams are such important water infrastructures, which have different types regarding their materials and their ...
Ahmad Ferdowsi +4 more
doaj +1 more source
Shape Optimization by Pursuing Diffeomorphisms [PDF]
Computational Methods in Applied Mathematics, 2015 Abstract We consider PDE constrained shape optimization in the framework of finite element discretization of the underlying boundary value problem. We present an algorithm tailored to preserve and exploit the approximation properties of the finite element method, and that allows for arbitrarily high resolution of shapes. It employs (i) B-
Ralf Hiptmair, Alberto Paganini
openaire +3 more sources
Journal of Thermal Science and Technology, 2020 In order to drastically accelerate the development processes of advanced heat exchangers, a new design framework integrating shape optimization, rapid prototyping and experimental validation is proposed.
Yukinori KAMETANI +3 more
doaj +1 more source
Journal of Marine Science and Engineering, 2021 In the field of parametric partial differential equations, shape optimization represents a challenging problem due to the required computational resources.
Nicola Demo +3 more
doaj +1 more source
Optimal shapes of compact strings [PDF]
Nature, 2000 Optimal geometrical arrangements, such as the stacking of atoms, are of relevance in diverse disciplines. A classic problem is the determination of the optimal arrangement of spheres in three dimensions in order to achieve the highest packing fraction; only recently has it been proved that the answer for infinite systems is a face-centred-cubic lattice.
MARITAN, AMOS +3 more
openaire +4 more sources
Tạp chí Khoa học và Công nghệ, 2023 Superhydrophobic films (SHF) have recently increased in routine due to their non-wettable capacity. Superhydrophobicity can be occurred by making a micro-structural-post on materials with the surface having a low energy level.
Anh-Duc Pham
doaj +1 more source
SHAPE OPTIMIZATION AND REARRANGEMENTS
Far East Journal of Dynamical Systems, 2007 In this note we consider a shape optimization problem with a weighted volume constraint. Using Burton’s theory of rearrangements of functions we transfer the problem into a rearrangement optimization problem. Existence, uniqueness and convexity of optimal shapes are addressed.
Allison, David, Emamizadeh, Behrouz
openaire +2 more sources
Blade Structure Design Based on Topology Optimization and Shape Optimization
Hangkong gongcheng jinzhan, 2020 The blade cross-section design of the helicopter rotor is the basis for studying the rotor dynamics design. A two-stage optimization design method combining joint topology optimization and shape optimization is proposed, which can be used for the design ...
ZHOU Cheng, LIN Jie, LIU Yong
doaj +1 more source
Physical Review Letters, 2012 We present filling as a type of spatial subdivision problem similar to covering and packing. Filling addresses the optimal placement of overlapping objects lying entirely inside an arbitrary shape so as to cover the most interior volume. In n-dimensional space, if the objects are polydisperse n-balls, we show that solutions correspond to sets of ...
Phillips, Carolyn L. +3 more
openaire +4 more sources