Multi-objective optimization involving function approximation via gaussian processes and hybrid algorithms that employ direct optimization of the hypervolume

2018 ◽  
Author(s):  
Conrado Silva Miranda
Keyword(s):  
Gaussian Processes ◽  
Function Approximation ◽  
Hybrid Algorithms ◽  
Multi Objective Optimization ◽  
Direct Optimization ◽  
Multi Objective

Multi-Objective Topology Optimization for Bevel Gear and Geometrical Reconstruction

2013 ◽  
Vol 278-280 ◽  
pp. 139-142
Author(s):  
Xiang Bian ◽  
Zong De Fang ◽  
Kun Qin ◽  
Lifei Lian ◽  
Bao Yu Zhang
Keyword(s):  
Topology Optimization ◽  
Optimization Method ◽  
Tooth Root ◽  
Multi Objective Optimization ◽  
Direct Optimization ◽  
Multi Objective ◽  
Gear Modification ◽  
Parametric Cad ◽  
Straight Lines ◽  
Root Stress

Usually the gear modification is a main measure to reduce the vibration and noise of the gears, but in view of the complexity of the gear modification, topology optimization method was used to optimize the structure of the gear. The minimum volume was set as the direct optimization goal. To achieve the target of reducing contact stress, tooth root bending stress and improving flexibility, the upper bound of the stress and lower bound of the flexibility were set appropriately, thus realizing multi-objective optimization indirectly. A method for converting topology result into parametric CAD model which can be modified was presented, by fitting the topology result with simple straight lines and arcs, the model can be smoothed automatically, after further regulating, the geometry reconstruction was finished. After topology optimization, the resulting structure and properties of the gear are consistent with cavity gear. While reducing the weight of the gear, the noise can be reduced and its life would be extended through increasing flexibility and reducing tooth root stress.

scholarly journals Multi-objective optimization using Deep Gaussian Processes: Application to Aerospace Vehicle Design

2019 ◽  
Author(s):  
Ali Hebbal ◽  
Loïc Brevault ◽  
Mathieu Balesdent ◽  
El-Ghazali Talbi ◽  
Nouredine Melab
Keyword(s):  
Gaussian Processes ◽  
Vehicle Design ◽  
Multi Objective Optimization ◽  
Multi Objective

Single and Multi-Objective Optimization of a Cogeneration System Using Hybrid Algorithms

2009 ◽  
Vol 30 (4) ◽  
pp. 261-271 ◽  
Author(s):  
Ricardo S. Padilha ◽  
Hugo F. L. Santos ◽  
Marcelo J. Colaço ◽  
Manuel E. Cruz
Keyword(s):  
Hybrid Algorithms ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Cogeneration System

A Heuristic Method Based on Multi-Objective Optimization Concept for Solving RNA Multiple Alignment

2017 ◽  
Vol 10 (5) ◽  
pp. 371
Author(s):  
Arakil Chentoufi ◽  
Abdelhakim El Fatmi ◽  
Molay Ali Bekri ◽  
Said Benhlima ◽  
Mohamed Sabbane
Keyword(s):  
Heuristic Method ◽  
Multiple Alignment ◽  
Multi Objective Optimization ◽  
Multi Objective
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