This work presents Modeling Agents for Real Environments, a framework to build predefined behavior agents and insert then into real environments to run in real time. Coded in Lua, MARE departs from a formal definition...
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ISBN:
(纸本)9789077381359
This work presents Modeling Agents for Real Environments, a framework to build predefined behavior agents and insert then into real environments to run in real time. Coded in Lua, MARE departs from a formal definition of agents and join games techniques such as A* algorithm, finite state machines, terrain tiles and others to build a fully customizable tool for games or simulation creation.
In this paper we discuss the scenario of Petroleum Engineering projects of Petrobras, a large Brazilian governmental oil & gas company. Based on this scenario, we define a set of requirements and system architectu...
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ISBN:
(纸本)9728865007
In this paper we discuss the scenario of Petroleum Engineering projects of Petrobras, a large Brazilian governmental oil & gas company. Based on this scenario, we define a set of requirements and system architecture to guide the construction of a Collaborative Engineering Environment for assisting the control and execution of large and complex industrial projects in oil industry, specifically tailored for Petroleum Engineering. The environment is composed by the integration of three different technologies of group work: Workflow Management System, Multimedia Collaborative System and Collaborative Virtual Environments.
This paper presents an object-oriented approach for creating multi-region non-manifold models with NURBS. The main motivation is that the geometry and shape of realistic engineering objects are intrinsically complex, ...
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This paper presents an object-oriented approach for creating multi-region non-manifold models with NURBS. The main motivation is that the geometry and shape of realistic engineering objects are intrinsically complex, usually composed by several materials and regions. Therefore, automatic and/or adaptive meshing algorithms have become revealed themselves quite useful to increase the reliability of the procedures of a FEM numerical analysis. The present approach is concerned with two aspects of 3D FEM simulation: geometric modeling, with automatic multi-region detection, and support to automatic finite element mesh generation. The final objective is to use geometric models directly in numerical applications.
This paper describes an algorithm for generating unstructured triangulations for arbitrarily shaped two-dimensional regions. The algorithm works for regions without cracks, as well as for regions with one or multiple ...
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This paper describes an algorithm for generating unstructured triangulations for arbitrarily shaped two-dimensional regions. The algorithm works for regions without cracks, as well as for regions with one or multiple cracks. The algorithm incorporates aspects of well-known meshing procedures and includes some original steps. It includes an advancing front technique, which uses a quadtree procedure to develop local guidelines for the size of generated elements. The advancing front technique is based on a standard procedure found in the literature, to improve mesh quality (as far as element shape is concerned), an a posteriori local mesh improvement procedure is used.
In this paper, a distributed computational system for finite element structural analysis and some strategies for improving its efficiency are described. The system consists of a set of programs that performs the struc...
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The paper introduces a new approach to simulate physical systems by asynchronous numerical integration: different bodies are moved with different stepsizes, but the whole system evolves within a single time frame. The...
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The paper introduces a new approach to simulate physical systems by asynchronous numerical integration: different bodies are moved with different stepsizes, but the whole system evolves within a single time frame. The approach ensures that interacting bodies are synchronized, but independent bodies are allowed to move independently. Particle system simulations show significant gain in performance when compared to the conventional, synchronous approach.
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