Dielectric elastomers are soft actuators, made of an elastomer membrane sandwiched by compliant electrodes. Because their high energy density and quick response, they well suited for dynamic applications such as loudspeakers. Thanks to progress in the manufacturing process dielectric electrode shape can be patterned very diverse shapes. In this study, we focus on relation between dynamical acou...

In the random geometric graph G(n,rn), n vertices are placed randomly in Euclidean d-space and edges added between any pair of distant at most rn from each other. We establish strong laws large numbers (LLNs) for a class parameters, evaluated G(n,rn) thermodynamic limit with nrnd= const., also dense nrnd→∞, rn→0. Examples include domination number, independence clique-covering eternal number tr...

The basic definitions and a history of the development biomimetics as discipline that considers nature-inspired design are presented in this paper. discussion results application principles machine elements given. fact transition zones Nature chose designed on trees many cases survived for more than hundred years, resisting various variable external loads other conditions, is considered. Presen...

The geometric optimization of orthopedic screws can considerably increase their orthopedic efficiency. Due to the high geometric parameters of orthopedic screws, a finite element simulation is an effective tool for analyzing and forecasting the effect of the parameters on the load-bearing capacity of different types of screws and bones. Thus, in the present study, the tensile strength of a typi...

Faculty of Electrical Engineering and Information Technology Department of Geometric Optimization and Machine Learning

This paper addresses the problem of path planning for a thin elastic metal plate under fairly general manipulation constraints. The underlying geometric model for the plate is provided by a B ezier representation. The geometric model is augmented by a realistic mechanical model. We assume that the plate is manipulated in accordance with a set of user-deened grasping constraints that specify the...

Multiple transmission lines on a single right of way are commonly used by utilities. The phenomenon of common cause outages was first of all recognized by a Task Force from IEEE subcommittee [1]. The Task Force defined a common mode outage as "an event having a single external cause with multiple failure events, where the events are not consequences of each other". The closed form expressions f...

In general, mesh smoothing is performed by minimizing the discrete energy function for the surface. One of the major problems in mesh smoothing is to prevent the mesh from shrinking. In this paper, we propose a novel volume constraint to address the shrinking problem in mesh smoothing. Our key observation is that the mesh can be efficiently smoothed patch by patch in a signal processing manner,...

Editing and deformation of irregular meshes have become standard tools in geometric modeling. Most approaches try to preserve low-level differential properties of the surface during editing, whereas the global structure and shape of the features are not explicitly taken into account. In this paper, we introduce a feature-driven editing approach that puts global structural properties of the shap...

We intend to propose a framework to handle the problem of mesh deformation in the context of shape optimization. The main idea is to combine the level set method with meshing tools specialized to deal with implicitly-defined geometries. The proposed method is then as well a topology optimization as a geometric optimization method.