Results 71 to 80 of about 4,687,940 (367)

Multi-objective robust topology optimization with dynamic weighting [PDF]

, 2014
A common robust topology optimization is formulated as a weighted sum of expected and variance of the objective functions for the given uncertainties. This has recently been applied to topology optimization with uncertainties in loading, [1]. Figure 1(a)
Brampton, Christopher J., Dunning, Peter D., Kim, H. Alicia, Riley, Mike   +3 more
core  

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Design of Selective Laser Melting (SLM) Structures: Consideration of Different Material Properties in Multiple Surface Layers Resulting from the Manufacturing in a Topology Optimization

Algorithms, 2022
Topology optimization offers a possibility to derive load-compliant structures. These structures tend to be complex, and conventional manufacturing offers only limited possibilities for their production.
Jan Holoch, Sven Lenhardt, Sven Revfi, Albert Albers   +3 more
doaj   +1 more source

Topological Portfolio Selection and Optimization

4th ACM International Conference on AI in Finance, 2023
Modern portfolio optimization is centered around creating a low-risk portfolio with extensive asset diversification. Following the seminal work of Markowitz, optimal asset allocation can be computed using a constrained optimization model based on empirical covariance. However, covariance is typically estimated from historical lookback observations, and
Yuanrong Wang, Antonio Briola, Tomaso Aste   +2 more
openaire   +2 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

TOPOLOGY OPTIMIZATION METHOD BASED ON SIMP-MMC FOR STRUCTURE SIZE PRECISE CONTROL

Jixie qiangdu, 2022
With the development of structural topology optimization methods, some scholars had proposed strategies to integrate existing topology optimization methods to improve the manufacturability of topology optimization result.
ZHANG JunFeng, LIAO JingYu, LIU EnHai
doaj  

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

Advanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus, Gefei Li, Martin Czekalla, Leonardo Fernandes Gomes, Christoph Pille, Hermann Pleteit, Adrian Struss, Keno Toussaint, Andre Irretier, Münip Dalgic   +9 more
wiley   +1 more source

Structural and thermal performances of topological optimized masonry blocks [PDF]

, 2016
Structural topology optimization is the most fundamental form of structural optimization and receives an increasing attention from engineers and structural designers.
Boel, Veerle, De Corte, Wouter, Steeman, Marijke, Vantyghem, Gieljan   +3 more
core  

Advanced topology optimization [PDF]

International Journal for Numerical Methods in Engineering, 2017
SummaryThis special issue contains 12 papers on topology optimization that address research topics dealing with a variety of engineering approaches, ranging from theoretical approaches to industrial applications powering the most recent advances in topology optimization.
Shinji Nishiwaki, Kenjiro Terada
openaire   +2 more sources

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

Advanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes, Benedikt Holz, Daniel Bruch, Paul Motzki   +3 more
wiley   +1 more source