Results 221 to 230 of about 140,931 (302)

Reliability-based topology optimization for electromagnetic systems

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2004
This paper presents a probabilistic optimal design for electromagnetic systems. A 2D magnetostatic finite element model is constructed for a reliability-based topology optimization (RBTO). Permeability, coercive force, and applied current density are considered as uncertain variables.
Kang, Jenam, Kim, Chwail, Wang, Semyung
openaire   +2 more sources

Reliability-based topology optimization of continuous structures

2008 7th World Congress on Intelligent Control and Automation, 2008
A new structural topology algorithm based on reliability is proposed. Moreover, the mathematical model of topology optimization based on the reliability for continuous structures is developed, in which the level set function is taken as design variables, minimization of the compliance is taken as objective function, reliability constraint is included ...
null Gaofei Ouyang, null Xianmin Zhang, null Yongchong Kuang   +2 more
openaire   +1 more source

Non-probabilistic Reliability-based Topology Optimization (NRBTO) Scheme for Continuum Structures Based on the parameterized Level-Set method and Interval Mathematics

Computer Methods in Applied Mechanics and Engineering, 2021
In this paper, a study on non-probabilistic reliability-based topology optimization (NRBTO) scheme for continuum structures based on the parameterized Level-Set method (PLSM) is conducted, in which the unknown-but-bounded (UBB) uncertainties of material ...
Lei Wang, Zeshang Li, Bowen Ni, Kaixuan Gu   +3 more
semanticscholar   +1 more source

New hybrid reliability-based topology optimization method combining fuzzy and probabilistic models for handling epistemic and aleatory uncertainties

, 2020
This study presents a hybrid reliability-based topology optimization (RBTO) method for handling epistemic and aleatory uncertainties. First, we establish a new triple-nested RBTO model based on fuzzy and probabilistic theory for describing the multi ...
Zeng Meng, Y. Pang, Yuxue Pu, Xuan Wang
semanticscholar   +1 more source

Reliability-based vibro-acoustic microstructural topology optimization

Structural and Multidisciplinary Optimization, 2016
A reliability-based vibro-acoustic microstructural topology optimization (RBVAMTO) model taking into consideration the uncertainty of several design-independent parameters, such as the direction of the load, the excitation frequency, or their combinations is presented.
Jianbin Du, Chuangchuang Sun
openaire   +1 more source

A non-probabilistic reliability-based topology optimization of continuum structures using evolutionary topology optimization method

Journal of the Brazilian Society of Mechanical Sciences and Engineering
Chan-Hyok Jong, Jong-Hun Kye, Gang-Song Li, Chol-Hyok Kim   +3 more
openaire   +2 more sources

Reliability‐based topology optimization of structures under stress constraints

International Journal for Numerical Methods in Engineering, 2018
SummaryIn this paper, we propose an approach for reliability‐based design optimization where a structure of minimum weight subject to reliability constraints on the effective stresses is sought. The reliability‐based topology optimization problem is formulated by using the performance measure approach, and the sequential optimization and reliability ...
Renatha Batista dos Santos, André Jacomel Torii, Antonio André Novotny   +2 more
openaire   +2 more sources

Reliability-Based Topology Optimization (RBTO)

2006
Recently, topology optimization has been the subject of a significant amount of academic and industrial research due to its simplicity in implementation and impact on product design. In this paper, reliability-based topology optimization (RBTO) is introduced for structures, electromagnetics, heat transfer, and coupled systems with consideration of ...
Semyung Wang, Heegon Moon, Chwail Kim, Jenam Kang, Kyung K. Choi   +4 more
openaire   +1 more source

Reliability-based topology optimization using reliability index approach

SPIE Proceedings, 2008
Reliability-Based Topology Optimization (RBTO) based on the Evolutionary Structural Optimization (ESO) using Reliability Index Approach (RIA) is developed. When the uncertainties such as the elastic modulus, applied load and dimensional variation exist in design process, the optimum topology obtained from the Deterministic Topology Optimization (DTO)
S. R. Kim, W. G. Lee, J. Y. Park, J. S. Yu, S. Y. Han   +4 more
openaire   +1 more source

Efficient reliability-based topology optimization for enhanced resilience of piezoelectric actuators under material uncertainties

Mechanics based design of structures and machines
This article presents a reliability-based topology optimization (RBTO) framework for the design of piezoelectric actuators, addressing the influence of material uncertainties on structural performance and operational reliability.
Seyyed Ali Latifi Rostami, Hayoung Chung, H. Lim   +2 more
semanticscholar   +1 more source