Robust multiscale design of incompressible multi-materials under loading uncertaintiesEngineering with Computers - Tập 38 - Trang 875-890 - 2021
Van-Nam Hoang, Trung Pham, Duc Ho, H. Nguyen-Xuan
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 ...... hiện toàn bộ
Virtual prototyping of a car turn-signal switch using haptic feedbackEngineering with Computers - Tập 26 - Trang 99-110 - 2009
Hunor Erdelyi, Doru Talaba
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...... hiện toàn bộ
Hierarchical data management for structural analysisEngineering with Computers - Tập 1 - Trang 45-54 - 1985
Peter J. Nicklin, Graham H. Powell, Jeffery P. Hollings
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...... hiện toàn bộ
Novel hybrid machine leaning model for predicting shear strength of reinforced concrete shear wallsEngineering with Computers - Tập 38 - Trang 3915-3926 - 2021
Behrooz Keshtegar, Moncef L. Nehdi, Reza. Kolahchi, Nguyen-Thoi Trung, Mansour Bagheri
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...... hiện toàn bộ
Reinforcement learning for block decomposition of planar CAD modelsEngineering with Computers - - Trang 1-11 - 2024
Benjamin C. DiPrete, Rao Garimella, Cristina Garcia Cardona, Navamita Ray
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...... hiện toàn bộ
Novel metaheuristic classification approach in developing mathematical model-based solutions predicting failure in shallow footingEngineering with Computers - Tập 37 - Trang 223-230 - 2019
Hossein Moayedi, Hoang Nguyen, Ahmad Safuan A. Rashid
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...... hiện toàn bộ
Computer-aided acoustic analysis of reciprocating compressor pipeline systemsEngineering with Computers - Tập 3 - Trang 21-33 - 1987
I. Györi, Gy. Joó
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...... hiện toàn bộ
Hull-form stochastic optimization via computational-cost reduction methodsEngineering with Computers - Tập 38 - Trang 2245-2269 - 2021
Andrea Serani, Frederick Stern, Emilio F. Campana, Matteo Diez
The paper shows how cost-reduction methods can be synergistically combined to enable high-fidelity hull-form optimization under stochastic conditions. Specifically, a multi-objective hull-form optimization is presented, where (a) physics-informed design-space dimensionality reduction, (b) adaptive metamodeling, (c) uncertainty quantification (UQ) methods, and (d) global multi-objective algorithm a...... hiện toàn bộ