Showing papers in "Advances in Engineering Software in 2004"

TL;DR: In this article, the authors considered the multi-material and multi-constraint problems, and investigated the topology optimization algorithm by using the different material representation models, and broadened its application from stiff structure designs and compliant mechanism designs to material designs by a number of benchmark examples.

TL;DR: In this article, the authors presented several types of evolutionary algorithms used for global optimization on real domains, including binary encoding of real values and its unsatisfactory behavior with multimodal problems, together with some improvements of fighting premature convergence.

TL;DR: A genetic algorithm approach, based on locally reducing a thick (guide) laminate, is introduced to exclusively generate and evaluate valid globally blended panel designs, implicitly reducing the size of the problem design space and increasing the quality of discovered local optima.

TL;DR: This paper presents the conflict-problem-solving CAD software, Eco-Design Tool, which integrates TRIZ into the eco-innovation idea, and demonstrates the applicability of the proposed software.

TL;DR: An adaptive neuro-fuzzy inference system (ANFIS) has been presented to speed control of a switched reluctance motor (SRM) allowing great flexibility for various real time applications.

TL;DR: Through the tire contact analysis, it is verified that the meshing technique introduced does not cause any meshing error and the detailed tire mesh expects the contact pressure more consistent with the experimental results.

TL;DR: In this article, the authors developed a solution method considering additional realistic project characteristics such as generalised activity precedence relations and external time constraints for particular activities, and formulated a linear/integer program and provided the optimal project time cost curve and the minimum cost schedule.

TL;DR: In this paper, the authors used a topology optimisation code to solve a three-dimensional problem concerning a real automotive component, based on the maximisation of the total potential energy with a volume constraint by optimality criteria.

TL;DR: It will be shown that the performance of the network training can be improved using an adaptive activation function with a properly updated gain parameter during the learning process.

TL;DR: A novel visual evolutionary computing environment to provide support for creative design is presented and it is shown that the approach is able to generate some creative solutions and demonstrates the potential of computational approach in creative design.

TL;DR: A bibliographical review of the object-oriented programming applied to the finite element method as well as to the boundary element method is given.

TL;DR: A generic web-based platform for conducting model-based numerical simulations online, which addresses Internet-specific issues such as supports for multiple users, integration of various programming languages or modules on both client and server sides, and the concerns of Internet traffic/security.

TL;DR: The storage of design knowledge and the collaborative design process involved in this environment are introduced and the hierarchical multi-agent system architecture offers a promising framework.

TL;DR: In this paper, a voxel-transformation model and algorithm have been developed to allow accurate representation of cutting through the part voxels intersected by the tool volume.

TL;DR: An index to validate the fuzzy c-means algorithm is developed that adopts a compactness measure to describe the variation of clusters, and introduces the fuzzy separation concept to determine the isolation of clusters.

TL;DR: In this paper, a data model that was developed to support automated imaging inspection of concrete bridges is presented. But these systems still neglect the automation aspects of bridge monitoring and inspection. But they do not address the data organization and decision-making aspect of bridge inspection and maintenance.

TL;DR: In this paper, a new approach for an integrated optimum design of a structural control system is described, which considers the structure and active control system as a combined or an integrated system, i.e., the structural sizing variables, locations of controllers and the feedback control gain are both treated as design variables.

TL;DR: In this article, the authors describe the use of interviewing techniques to understand problem solving and the development of knowledge models for automated constructability assessment, using deep knowledge mining and protocol analysis.

TL;DR: In this paper, the sequential limit analysis (SFA) procedure is used to estimate the structural response of a rigid-plastic shell element to a single-shell failure in the presence of a single shell element.

TL;DR: In this paper, the authors describe enhanced database system facilities that are used to group mutually consistent component versions together into useful configurations, including integrity management facilities that allow evolving design constraints to be captured flexibly at individual component/object level.

TL;DR: An application of the environment to the interactive training for operating a NASA wind tunnel is described, and two agents in the environment can perform several functions, including conducting an interactive virtual tour of the facility; guiding and supervising the training, as well as certifying the trainee.

TL;DR: Benefiting from both Ch and OpenCV, Ch OpenCV has many salient features and is especially suitable for rapid prototyping, web-based applications, and teaching and learning about computer vision.

TL;DR: The second generation of the self-organizing adaptive penalty strategy (SOAPS-II) is proposed to further improve the effectiveness and efficiency of the genetic searches on constrained optimization problems, especially when equality constraints are involved.

TL;DR: In this article, a mixed eight-node solid element is developed with the aim of accurately and efficiently capturing local stresses in composites, where the nodal degrees of freedom are the three displacements and the three interlaminar stresses.

TL;DR: In this paper, a hydroinformatic environment was created with the general objective of solving environmental problems in coastal waters, which consists of three components: a component for data organization and treatment; another component for modelling and simulating water quality and hydrodynamics; and a part for analysing, visualizing and editing the results.

TL;DR: A data structure based on meshes-treating objects, which creates data types that may be adjusted to the needs of each case, allowing each element to be modelled independently is proposed.

TL;DR: In this paper, a numerical algorithm for the friction factor in the Darcy-Weisbach pipe friction head loss formula is developed by an effective linear iteration scheme of the Colebrook-White equation, which precisely determines, with a small load of computations, the friction factors within the ranges of: 0 < relative roughness < 0.1 and 2 × 103 < Reynolds number < 109.

TL;DR: In this article, a 3D extension of a static relaxation method for modeling large displacement of jointed rock masses is presented, and two illustrative examples are computed to verify the new formulation and to demonstrate the ability of the 3D model.

TL;DR: StatFAG as discussed by the authors is an intelligent tutoring system for education on design, optimisation and the manufacturing of gears and gearing, which helps lecturers to plan and execute optimal lessons for various subjects; it makes self-studies of students of higher level of education at the Faculty of Mechanical Engineering much more efficient; and also assists less experienced graduates who must independently design gear assemblies in companies.