Shape space exploration of constrained meshes - YANG, YANG, et al. - 2011 () Citation Context ...onstraints is limited to linear functions. While both approaches are able to preserve existing alignments, they do not allow for the creation of new relations between elements of a model. Yang...
Thus, a shape-changing device might have a reasonably high number of degrees of freedom and a mechanical structure that converts actuation to some form of constrained surface. Such systems are increasingly being investigated as both input and output devices for human-computer interfaces3,4 and ...
To further mitigate any impact of the damage on the surface registration, non-rigid deformations of the template were constrained by the active shape model, i.e., it replaced the more general freeform non-rigid deformation model in the MeshMonk153 toolbox. This resulted in cranial vault shapes...
Following [33], various approaches were proposed to model hand joints using anisotropic Gaussians [44], a 4671 collection of spherical meshes [46], or a union of convex bodies [28]. Schmidt et al. [41] proposed the first implicit representation of the articulate...
It has been pointed out in the introduction that the transfer of geometries from CAD systems into computational meshes for simulation is critical. This problem can be circumvented by a discrete shape parameterisation method acting directly along the computational mesh. In contrast to CAD based param...
by hinge sections of polyimide. The pre-stretched latex membrane is modeled using 1D first-order elements and the Mooney-Rivlin hyperelastic constitutive model. As in the physical arm, the central CFRP section of the inner row is constrained in 3 DoF, while all other edges are free to move....
In order to verify the accuracy of simulation calculations and avoid the influence of the number of meshes on the simulation results, the numerical calculation results are compared with the results published in this paper by Mei [39]. The radius of the cylinder buoy is 4.05 m, the draft is...
the final mesh quality is constrained by the mesh generator itself. On the contrary, the second approach can save computational time, and the smoothing of the morphing method overall maintains the quality of an initial high-quality mesh, but special tools need to be adopted. Generally “efficienc...
Figure 2. Meshes: (a) Aerodynamic mesh and structural mesh (inside the aerodynamic mesh); (b) detail view with marked red square. The Allmaras model is used for both the NACA 0012 airfoil and Ahmed body optimization in order to reduce the computational cost instead of other expensive turbul...
Front wings are a key element in the aerodynamic performance of Formula 1 race cars. Thus, their optimisation makes an important contribution to the performance of cars in races. However, their design is constrained by regulation, which makes it more difficult to find good designs. The present ...