Engineering with Computers
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Robust multiscale design of incompressible multi-materials under loading uncertainties
Engineering with Computers - Tập 38 - Trang 875-890 - 2021
Most of the multiscale topology optimization (TO) approaches, which have been proposed for multi-material designs, are based on the assumption of deterministic loads and the exclusion of uncertain quantities like positions, directions, and magnitudes of loads. This contribution deals with: (1) multiscale design; (2) multi-materials; (3) loading uncertainties; and (4) incompressible materials such ......
Virtual prototyping of a car turn-signal switch using haptic feedback
Engineering with Computers - Tập 26 - Trang 99-110 - 2009
The present work describes the virtual prototyping procedure of car turn-signal switches using a dedicated haptic feedback system. Although turn-signal switches have mechanisms with simple geometry, simulating the “feeling” during its operation is still a challenge. In order to allow ergonomics designers to directly assess the comfort of operation, a dedicated haptic system was developed for repro......
Hierarchical data management for structural analysis
Engineering with Computers - Tập 1 - Trang 45-54 - 1985
The use of formal data bases management systems is becoming increasingly necessary in computer programs for structural engineering. This paper briefly reviews data base requirements and the organization of integrated computer program networks and identifies a need for hierarchical data base management in computer programs for structural analysis. The nature of the data hierarchy is illustrated wit......
Novel hybrid machine leaning model for predicting shear strength of reinforced concrete shear walls
Engineering with Computers - Tập 38 - Trang 3915-3926 - 2021
Accurate prediction of the ultimate shear capacity of reinforced concrete shear walls (RCSWs) is essential for robust design of buildings under seismic and wind loads. However, the shear capacity of RCSWs depends on multiple complex design variables characterized by diverse geometric and materials properties. Thus, a powerful modeling framework is required. In this paper, a hybrid artificial intel......
Reinforcement learning for block decomposition of planar CAD models
Engineering with Computers - - Trang 1-11 - 2024
The problem of hexahedral mesh generation of general CAD models has vexed researchers for over 3 decades and analysts often spend more than 50% of the design-analysis cycle time decomposing complex models into simpler blocks meshable by existing techniques. The decomposed blocks are required for generating good quality meshes (tilings of quadrilaterals or hexahedra) suitable for numerical simulati......
Spiral water cycle algorithm for solving multi-objective optimization and truss optimization problems
Engineering with Computers - Tập 38 - Trang 963-973 - 2021
This paper addresses multi-objective optimization and the truss optimization problem employing a novel meta-heuristic that is based on the real-world water cycle behavior in rivers, rainfalls, streams, etc. This meta-heuristic is called multi-objective water cycle algorithm (MOWCA) which is receiving great attention from researchers due to the good performance in handling optimization problems in ......
Novel metaheuristic classification approach in developing mathematical model-based solutions predicting failure in shallow footing
Engineering with Computers - Tập 37 - Trang 223-230 - 2019
This study evaluated and compared several novel classification approaches to develop the most reliable stability model-based solution in the prediction of shallow footing’s allowable settlement. By applying the biogeography-based algorithm, this study presents an optimized metaheuristic classification approach with mathematical-based multi-layer perceptron neural network and fuzzy inference system......
A new sixth-order approximation for nonlinear two-point boundary value problems: application of single-step alternating group explicit iteration method to engineering problems
Engineering with Computers - Tập 37 - Trang 3541-3550 - 2020
We report a new three-point compact sixth-order approximation for the solution of nonlinear two-point boundary value problems
$$ {-}w^{\prime\prime} + f\left( {t,w} \right) = 0 $$
, subject to natural boundary conditions prescribed at two end points. We also discuss the application of single-step a......
Proposing a novel hybrid intelligent model for the simulation of particle size distribution resulting from blasting
Engineering with Computers - Tập 35 Số 1 - Trang 47-56 - 2019
Computer-aided acoustic analysis of reciprocating compressor pipeline systems
Engineering with Computers - Tập 3 - Trang 21-33 - 1987
This paper presents an analytical method for acoustic forced pulsations of reciprocating compressor pipeline systems have a treelike structure that consists of an arbitrary number of branchings with optional elements—pipes, volumes, orifices, and so on. The plane wave acoustic model is used to describe the method, and the solution works by using an extended Schmidt-Kuhlmann-type approach. On the b......
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