The present work describes the architecture of a new approach addressing the sharing of virtual p... more The present work describes the architecture of a new approach addressing the sharing of virtual prototypes over the Web with standard programming tools. The usage of standard Web-based technologies leads to easier, effective and more general applications suitable for small and medium size companies with limited resources in that field of research. Designers not only exchange just geometry data, but also more information about design knowledge and design solutions, and collaboration is performed on remote locations. In this work the framework is proposed to model a mechanical product focusing on behavioural criteria. In order to avoid time-consuming virtual model preparation, product variety is defined in single configuration file. The configuration file is covering all the variations, with formalisation of the assembly structure and linking the parts and attributes in uniform way. It enables visualisation of the models from different modelling systems and allows interactive changes and evaluation of the virtual prototype.
International Journal of Advanced Manufacturing Technology, 2009
In a globalised industry, it has been noted that an increase of interest in collaborative virtual... more In a globalised industry, it has been noted that an increase of interest in collaborative virtual environments as an alternative or extension to collaborating using CAD systems. The high product variety, the “mass customisation” of products, demands a collaboration chain. Collaborative chain includes the customers, managers, designers, manufacturers and suppliers for specific partial solutions and information exchange on remote locations. Our approach is combining the modelling system with virtual prototype via Web for evaluation of products, simultaneously involving their behaviour simulations. In order to avoid repetition of time-consuming virtual model preparation, product variety is defined in single XML file covering the various configurations. The uniform intranet/internet application combining Java, XML and VRML has been developed on Thin Client–Fat Server architecture.
International Journal of Advanced Manufacturing Technology, 2003
The use of virtual reality (VR) techniques in industry is subject to very high expectations, as V... more The use of virtual reality (VR) techniques in industry is subject to very high expectations, as VR has emerged as a popular technology for computer-human interfaces in order to master the shortcomings of CAD systems. 3D CAD models provide a natural way of sharing design information among participants in the production process. VRML is a tool specifically designed for creating 3D virtual worlds on the Web, where these synthetic worlds can give us the ability to visualise objects and navigate the virtual world. This paper describes a system for VRML model visualisation that enables changes in the configuration file, which is written in XML, and that automatically reviews the model including the functional behaviour. From the evaluated VRML model, the connection to a PDM system is provided with a list of elements and their material properties.
Adria-Mobil Ltd. is a well-known Slovenian caravan and motorhomes producer, which implemented CAD... more Adria-Mobil Ltd. is a well-known Slovenian caravan and motorhomes producer, which implemented CAD system years ago. Development and use of CAD system resulted in ideas to extend CAD system with VR techniques for visualisation and optimisation of physical prototype, not only the shape geometrical data but also to combine different materials and textures of interior and interior functionality. A new low-cost system has been developed that enable the change of CAD model in VR environment. VRML as ISO standard that allows the distribution of computer models over the Web is applied. The underlying principles of Web-based VR with VRML and data base connection are described.
The present work describes the architecture of a new approach addressing the sharing of virtual p... more The present work describes the architecture of a new approach addressing the sharing of virtual prototypes over the Web with standard programming tools. The usage of standard Web-based technologies leads to easier, effective and more general applications suitable for small and medium size companies with limited resources in that field of research. Designers not only exchange just geometry data, but also more information about design knowledge and design solutions, and collaboration is performed on remote locations. In this work the framework is proposed to model a mechanical product focusing on behavioural criteria. In order to avoid time-consuming virtual model preparation, product variety is defined in single configuration file. The configuration file is covering all the variations, with formalisation of the assembly structure and linking the parts and attributes in uniform way. It enables visualisation of the models from different modelling systems and allows interactive changes and evaluation of the virtual prototype.
International Journal of Advanced Manufacturing Technology, 2009
In a globalised industry, it has been noted that an increase of interest in collaborative virtual... more In a globalised industry, it has been noted that an increase of interest in collaborative virtual environments as an alternative or extension to collaborating using CAD systems. The high product variety, the “mass customisation” of products, demands a collaboration chain. Collaborative chain includes the customers, managers, designers, manufacturers and suppliers for specific partial solutions and information exchange on remote locations. Our approach is combining the modelling system with virtual prototype via Web for evaluation of products, simultaneously involving their behaviour simulations. In order to avoid repetition of time-consuming virtual model preparation, product variety is defined in single XML file covering the various configurations. The uniform intranet/internet application combining Java, XML and VRML has been developed on Thin Client–Fat Server architecture.
International Journal of Advanced Manufacturing Technology, 2003
The use of virtual reality (VR) techniques in industry is subject to very high expectations, as V... more The use of virtual reality (VR) techniques in industry is subject to very high expectations, as VR has emerged as a popular technology for computer-human interfaces in order to master the shortcomings of CAD systems. 3D CAD models provide a natural way of sharing design information among participants in the production process. VRML is a tool specifically designed for creating 3D virtual worlds on the Web, where these synthetic worlds can give us the ability to visualise objects and navigate the virtual world. This paper describes a system for VRML model visualisation that enables changes in the configuration file, which is written in XML, and that automatically reviews the model including the functional behaviour. From the evaluated VRML model, the connection to a PDM system is provided with a list of elements and their material properties.
Adria-Mobil Ltd. is a well-known Slovenian caravan and motorhomes producer, which implemented CAD... more Adria-Mobil Ltd. is a well-known Slovenian caravan and motorhomes producer, which implemented CAD system years ago. Development and use of CAD system resulted in ideas to extend CAD system with VR techniques for visualisation and optimisation of physical prototype, not only the shape geometrical data but also to combine different materials and textures of interior and interior functionality. A new low-cost system has been developed that enable the change of CAD model in VR environment. VRML as ISO standard that allows the distribution of computer models over the Web is applied. The underlying principles of Web-based VR with VRML and data base connection are described.
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Papers by Gorazd Hren