13,670 research outputs found

    Visualising urban sustainability

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    Developing sustainable urban environments is complex and requires a number of factors – including social, economic and environmental sustainability - to be taken into account. This project is prototype software that produces a 3D virtual model of urban developments allowing viewers to see the short and long-term implications of courses of action

    Angelópolis territory of virtual model

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    The virtual city is no longer an internet affair where you can navigate between fantastic spaces and known sites invented by man. Today the virtual city is a real physical site linked by the network, which is controlled by the big phone service providers offering the necessary connections and bank transfers, financial movements and even provide other services to administrate hotels, restaurants, hospitals, schools, universities and other franchise business The contemporary urban development contemplates available spaces for the establishment of these virtual cities along companies, commerce, different bank entities, organizations, corporations and international institutions, offices among others in unbeatable places with all of the services provided, equipment, and transportation, which can be managed from the countries of origin of the owners companies which act as the business matrix. In the same way that Rem Koolhaas explains the “Generic City”, the zone of development called Angelópolis is one of the most exclusive commercial zones in Puebla city, México, and it was developed in the same manner as in the rest of the world that is, as an urban appendix, that normally invades nearby settlements next to the big city and is situated inside the metropolis limits in order to establish the physical and demographic continuity in this new sector with the rest of the city. These new urban districts developments are very much alike as others in the world, so the present paper explains the important characteristics of the Angelópolis zone and the relation with the exterior and virtual connections that are being now generalized among the planet

    Coupled path and motion planning for a rover-manipulator system

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    This paper introduces a motion planning strategy aimed at the coordination of a rover and manipulator. The main purpose is to fetch samples of scientific interest that could be placed on difficult locations, requiring to maximize the workspace of the combined system. In order to validate this strategy, a simulation environment has been built, based on the VORTEX Studio platform. A virtual model of the ExoTer rover prototype, owned by the European Space Agency, has been used together with the same robot control software. Finally, we show in this paper the benefits of validating the proposed strategy on simulation, prior to its future use on the real experimental rover.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

    Plasticity effects in subsequent simulations of car structures

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    In order to further reduce the weight of car components while at the same time\ud maintaining performance and safe life it is necessary to enhance the simulation process. This\ud is especially important for chassis parts which have not only a high dynamic load but are also\ud partly undamped. To reach this goal, the logical step is to couple the successive operations of\ud forming, assembly and virtual performance testing.\ud The objective is a complete determination of the mechanical state of the (sub-)assemblies.\ud It is therefore necessary to consider all forming and joining processes a part has previously\ud undergone and to consider them in the virtual model. This virtual model is ideally suited for\ud virtual prototyping (e.g. structural analysis, fatigue, crash) because the complete history of\ud every part is contained. In contrast to standard models, the changed thickness of sheet metal\ud parts and residual stresses due to forming and joining as well as the new material state at\ud every point are known prior to any external loading. This results in a more reliable prediction\ud of product performance.\ud Using a relatively simple part it is demonstrated how the performance of chassis parts\ud changes with the inclusion of plastic forming effects as compared to the exclusion of these\ud effects. The transfer of the results of the forming process to the comprehensive model is shown\ud first. Hereafter the model is subjected to static and dynamic external loads. The results are\ud compared to calculations that use a standard model and show clearly that the inclusion of the\ud plastic history has a significant influence on the product performance

    Robot virtual prototype in ADAMS

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    Tato práce se zabývá vytvořením virtuálního modelu robotu v ADAMS a co-simulačním propojením tohoto modelu s návrhem řízení v Matlab/Simulink. Robotem je segway Pierot vytvořený v rámci předchozích závěrečných prací. Obsahem této práce je vytvoření multi-body modelu, volba pohonu vytvoření co-simulačního propojení a samotná co-simulace.The goal of this work is to create virtual model of robot in ADAMS and co-simulation link between ADAMS and control system in Matlab/Simulink. Robot is segway robot called Pierot, created as the result of past final works. In this work is described creation of robot's multi-body model, choice of the motor, creation of co-simulation link and co-simulation itself.

    Path planning for reconfigurable rovers in planetary exploration

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    This paper introduces a path planning algorithm that takes into consideration different locomotion modes in a wheeled reconfigurable rover. Such algorithm, based on Fast Marching, calculates the optimal path in terms of power consumption between two positions, providing the most appropriate locomotion mode to be used at each position. Finally, the path planning algorithm is validated on a virtual Martian scene created within the V-REP simulation platform, where a virtual model of a planetary rover prototype is controlled by the same software that is used on the real one. Results of this contribution also demonstrate how the use of two locomotion modes, wheel-walking and normal-driving, can reduce the power consumption for a particular area.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
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