Biosca, Adrià, Borrós, Salvador, Pedret Clemente, Vicenç, Hyre, Matthew R., and García Granada, Andrés‐Amador
International Journal of Applied Glass Science. Oct2019, Vol. 10 Issue 4, p569-583. 15p.
WATER bottles, GLASSWARE, GLASS bottles, PERFUMES, VIRTUAL prototypes, THREE-dimensional modeling (Computer graphics), TESTING equipment, and INJECTION molding
Glass forming to produce perfume bottles with specific thickness distribution profiles is based on trial and error and requires several tests in production line. These tests are expensive and time‐consuming, which increases time to market. The use of a numerical model aims to reduce the number of prototypes by performing virtual tests of the mold equipment and the process conditions. This article presents results of numerical simulations of the blow and blow forming process to predict glass thickness distribution. Correlation of the simulation results of the glass temperature with experimental infrared measurements on the glass skin and experimental validation of glass forming simulations and influence of the blank mold cavity in the thickness distributions of perfume bottles are provided. Finally validation of the results of axisymmetrical and three‐dimensional models for axisymmetric bottles defining a useful technique to use the right blank mold for desired thickness distribution while reducing the trial and error testing. [ABSTRACT FROM AUTHOR]
Segura, Rafael J., Pino, Francisco J., Ogáyar, Carlos J., and Rueda, Antonio J.
Computer Applications in Engineering Education; Jan2020, Vol. 28 Issue 1, p31-41, 11p, 2 Color Photographs, 1 Illustration, 4 Charts
VIRTUAL reality, CONCEPT learning, VIRTUAL prototypes, CREATIVE thinking, and COMMON sense
This paper presents a prototype of a virtual reality (VR) system to teach the basic concepts of programming called VR‐OCKS. The system is inspired by other visual languages such as Scratch or Kodu, and it works by proposing to the user the resolution of simple puzzles in a 3D environment. Several basic commands to a humanoid character, such as advance or turn, together with control flow structures like iteration and conditional selections, are needed to provide a solution for increasingly difficult challenges. Our aim is to attract users, usually children and teenagers, into the world of programming by taking advantage of the appeal and potential of VR. The use of VR‐OCKS strengthened the spatial orientation and autonomy of the users, in addition to enhancing common sense, creative thinking, and systematic reasoning. In our experiments, VR‐OCKS was accepted by adults and children alike and it showed great potential as an educational tool. [ABSTRACT FROM AUTHOR]
VIRTUAL design, WASTE minimization, VIRTUAL prototypes, PROCESS optimization, MANUFACTURING industries, LEAN management, and ORGANIZATIONAL performance
Virtual design and construction (VDC) implementation remains a challenge as companies lack understanding of the implementation strategies and their relation with other important improvement efforts such as lean management. This article presents a performance modeling methodology that allows companies to assess VDC implementation strategies, including lean management as a moderator. The methodology is based on a conceptual model of the implementation variables that influence project performance and a mathematical method that uses partial least squares to explain the relationships among the multiple variables. The methodology was tested using data from an existing survey to identify the variables and quantify the relationships. A significant finding is that using lean as a moderator strengthens the connection between strategies and allows a better performance on companies. The results are exploratory but provide interesting insights into VDC implementation strategies and provide evidence of the methodology's power. [ABSTRACT FROM AUTHOR]
The article focuses on the virtual prototyping of a blow molded container. Topics discussed include four main processes involve in blow molding, which include parison, inflation, and part solidification, coupling the process of blow molding with hydrostatic load, and time and pressure variation between mold motion and inflation.