The paper presents a case study, in which parametric modeling has been used to explore the geometrical design alternatives of a large span roof. Explorative criteria are oriented to the use of on site energy resources, with specific focus on the mitigation of summer discomfort. After broadly presenting the subject, specific emphasis is given to the role played by the (parametric) geometry.

In this paper, the dynamic response of an axially moving viscoelastic beam with simple supports is calculated analytically based on Timoshenko theory. The beam material property is separated to shear and bulk effects. It is assumed that the beam is incompressible in bulk and viscoelastic in shear, which obeys the standard linear model with the material time derivative. The axial speed is charac...

Surface triangular meshing plays an important role in the areas of computer graphics and engineering analysis. Traditionally, surface meshing is achieved by mapping meshes created in 2D parametric space onto surfaces. Care is taken in generating meshes in the parametric space and mapping them to surfaces because the transformation of geometry from the parameter space to the real space could be ...

A complete documentation and conservation of a historic timber roof requires the integration of geometry modelling, attributional and dynamic information management and results of structural analysis. Recently developed as-built Building Information Modelling (BIM) technique has the potential to provide a uniform platform, which provides possibility to integrate the traditional geometry modelli...

This paper reviews and evaluates three main techniques for automated geometry diagram construction: synthetic methods, numerical computation methods, and symbolic computation methods. We also show how to use these techniques to: parametric mechanical CAD, linkage design, computer vision, dynamic geometry, and CAI (computer aided instruction). The methods and the applications reviewed in this pa...

In this paper, we will discuss the approaches and technologies associated with the development of the Geometry-Grid Toolkit (GGTK) and MiniCAD. GGTK is a software library that provides core functionalities in geometry, topology and mesh generation and MiniCAD is a software system with graphical user interface built on top of GGTK. The application of GGTK/MiniCAD to the development of customized...

We develop a computational approach to non-parametric Fisher information geometry and algorithms to calculate geodesic paths in this geometry. Geodesics are used to quantify divergence of probability density functions and to develop tools of data analysis in information manifolds. The methodology developed is applied to several image analysis problems using a representation of textures based on...

The spectral-angular and angular distributions of parametric X-radiation for case of backward diffraction (particular case of Bragg geometry scheme) is discussed. It is shown that in case of Bragg geometry it is necessary to use dynamical approach for PXR consideration. The comparison of the theory and experiment is carried out.

This paper describes a new semi-automatic approach developed for modelling historic building façades with Building Information Modelling (BIM) software. Two new developments for BIM software are presented in this paper. The first is a new library of parametric objects which are designed for modelling classical architectural elements from survey data. These library objects are dynamic and have p...

double bridge girder overhead cranes are used for heavy duty applications in theindustry. in this paper a detailed parametric design optimization of the main girder of box type isperformed for a 150ton capacity and 32m long span crane, after its basic design using availabledesign rules. design optimization is performed using detailed 3d finite element analysis bychanging the number, shape and l...