Results 21 to 30 of about 537,671 (190)
Isotropic-Cholesteric Transition of a Weakly Chiral Elastomer Cylinder [PDF]
, 2008 When a chiral isotropic elastomer is brought to low temperature cholesteric phase, the nematic degree of freedom tends to order and form a helix. Due to the nemato-elastic coupling, this also leads to elastic deformation of the polymer network that is ...
Baskaran, Aparna, Xing, Xiangjun
core +3 more sources
Development of Free-Form Assembly-Type Mold Production Technology Using 3D Printing Technology
Buildings, 2023 Free-form molds are used for one-time curve configuration, and because they are produced through manpower, they have issues with reduced precision and the occurrence of errors.
Jongyoung Youn +6 more
doaj +1 more source
Free Form Deformation Method Applied to Modeling and Design of Hypersonic Glide Vehicles
IEEE Access, 2019 The aerodynamic shape of the hypersonic glide vehicle (HGV) has become a research topic nowadays due to its excellent aerodynamic performances. Some limitations need to be reduced when the free-form deformation (FFD) method is applied to parametric ...
Bin Zhang +3 more
doaj +1 more source
Metals, 2022 When working out 3D building-up modes, it is necessary to predict the material properties of the resulting products. For this purpose, the crystallography of aluminum bronze grains after electron beam melting has been studied by EBSD analysis methods. To
Anton Yu. Nikonov +3 more
doaj +1 more source
An Effective Mesh Deformation Approach for Hull Shape Design by Optimization
Journal of Marine Science and Engineering, 2021 A method for the morphing of surface/volume meshes suitable to be used in hydrodynamic shape optimization is proposed. Built in the OpenFOAM environment, it relies on a Laplace equation that propagates the modifications of the surface boundaries ...
Diego Villa +4 more
doaj +1 more source
Free-form skeleton-driven mesh deformations
Proceedings of the eighth ACM symposium on Solid modeling and applications - SM '03, 2003 In this paper, we propose a new scheme for free-form skeleton-driven global mesh deformations. First a Voronoi-based skeletal mesh is extracted from a given original mesh. Next the skeletal mesh is modified by free-form deformations. Then a desired global shape deformation is obtained by reconstructing the shape corresponding to the deformed skeletal ...
Yoshizawa, S. +2 more
openaire +2 more sources
Free-form solid modeling using deformations [PDF]
Computers & Graphics, 1990 Abstract One of the most important problems of available solid modeling systems is that the range of shapes generated is limited. It is not easy to model objects with free-form surfaces in a conventional solid modeling system. Such objects can be defined arbitrarily, but then operations on them are not transparent and complications occur.
Güdükbay, U., Özgüç, B.
openaire +3 more sources
Case Studies in Thermal Engineering, 2021 The compressor global geometric model including the endwall and the blade is parameterized based on a directly manipulated free-form deformation (DFFD) approach.
Hang Xiang, Jiang Chen
doaj +1 more source
IEEE Access, 2019 Aerodynamic shape optimization (ASO) of hypersonic lifting body has become a significant research topic due to its significant performance advantages.
Bin Zhang +3 more
doaj +1 more source
An inexact Newton-Krylov algorithm for constrained diffeomorphic image registration [PDF]
, 2015 We propose numerical algorithms for solving large deformation diffeomorphic image registration problems. We formulate the nonrigid image registration problem as a problem of optimal control.
Biros, George, Mang, Andreas
core +1 more source