Results 261 to 270 of about 25,499,806 (331)

Reliability-based topology optimization considering corrosion

2012 Proceedings Annual Reliability and Maintainability Symposium, 2012
Mechanical engineers always expect to design a structure which could work properly in its whole lifetime. But there exist many random factors, such as dimension, material property and applied forces. Hence structures based on determinate design could fail with high probability.
Bin Zheng, Xiao-jun Wang, Hong-Zhong Huang   +2 more
openaire   +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, Yu-Xue Pu, Xuan Wang
semanticscholar   +1 more source

A Deterministic Approach for Reliability Based Topology Optimization

53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference<BR>20th AIAA/ASME/AHS Adaptive Structures Conference<BR>14th AIAA, 2012
This paper presents an efficient approach for the reliability based topology optimization (RBTO), where the computational effort involved in solving the RBTO problem is equivalent to that of solving a deterministic topology optimization (DTO) problem.
Pugazhendhi Kanakasabai, Anoop Dhingra
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.
S. A. Latifi Rostami, Hayoung Chung, H. Lim   +2 more
semanticscholar   +1 more source

Reliability-based topology optimization using the response surface method for stress-constrained problems considering load uncertainty

Engineering optimization (Print), 2022
The objective of this work is to build a useful-response-surface-based reliability design approach for solving stress-constrained optimization problems taking into consideration load uncertainty.
Chang-Zheng Cheng, Bo Yang, Xuan Wang, Kai Long   +3 more
semanticscholar   +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, Bo-Wen Ni, Kaixuan Gu   +3 more
semanticscholar   +1 more source

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 of Laser Scanned Model

10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2004
Recent engineering process requires fast development and manufacturing of the products. This paper mainly discusses the process of rapid product development (RPD) from the reverse engineering to the optimal design. A laser scanning system scans a product and the efficient data processing method reduces the scanned point data.
Chwail Kim, Semyung Wang, Euichul Kang, Kwanheng Lee   +3 more
openaire   +1 more source

The reliability-based topology optimization design by stochastic perturbation

2011 IEEE International Conference on Computer Science and Automation Engineering, 2011
This article discussed the problem of reliability-based topology optimization design (RBTO), combined evolutionary structural optimization (ESO) and the reliability analysis method based on the stochastic finite element method (perturbation), established the mathematical model of reliability-based topology optimization design.
null Jingkui Li, null Yanli Zhang, null Chao Yu, null Jianye Guo   +3 more
openaire   +1 more source

On the Use of Fidelity Transformation Method for Stress‐Constrained Reliability‐Based Topology Optimization of Continuum Structure With High Accuracy

International Journal for Numerical Methods in Engineering
Stress‐constrained reliability‐based topology optimization (RBTO) method has incurred considerable attention owing to its superiority of enhancing the structural safety.
Zeng Meng, Qiaochu Qian, Peng Hao
semanticscholar   +1 more source