A multi-objective optimization framework for robust axial compressor airfoil design

Martin, Ivo; Hartwig, Lennard; Bestle, Dieter

doi:10.1007/s00158-018-2164-3

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…It fully considers the coordination mechanism between various disciplines in the process of complex product design. It can shorten the design cycle and obtain better design schemes by obtaining the optimal value of conflicting objectives [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Multidisciplinary Lightweight Optimization for Front Impact Structure of Body Frame Based on Active and Passive Safety

Wang¹,

Wang²,

Li³

et al. 2021

Mathematics

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The Analytic Target Cascading (ATC) is an effective method for solving hierarchical Multidisciplinary Design Optimization (MDO) problems. At the same time, this method suffers from poor convergence and low accuracy, which is caused by the inconsistency of system constraints. In this paper, a novel ATC method based on dynamic relaxation factor is proposed. The dynamic relaxation factor of consistency constraint is added in the system level and is adjusted by the deviation of the linking variables between the levels to ensure the feasible region of the design space. The effectiveness and accuracy of this method are verified by a mathematical example. This method is used to solve the lightweight problem of the trussed front part of the vehicle body frame based on active and passive safety to achieve the collaborative optimization of lightweight trussed frame, crash safety, and aerodynamic characteristics. The important value of the novel ATC method based on dynamic relaxation factor in engineering applications is proven.

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Section: Introductionmentioning

confidence: 99%

Multidisciplinary Lightweight Optimization for Front Impact Structure of Body Frame Based on Active and Passive Safety

Wang¹,

Wang²,

Li³

et al. 2021

Mathematics

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“…The optimized compressor improved aerodynamic performance without any penalty in mechanical behavior compared with the preliminary design. Multi-disciplinary optimizations for compressor impellers and wind turbine blades have been conducted to satisfy aerodynamic performance and mechanical reliability (Martin et al , 2019; Osborne et al , 2003; Pourrajabian et al , 2016). However, there is presently a lack of investigations on the improvement of both performance and structural machinability for a shrouded centrifugal impeller.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization design of a centrifugal impeller considering both aerodynamic efficiency and structural machinability

Xie

Zhu

et al. 2020

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Purpose This study aims to complete the optimization design of a centrifugal impeller with both high aerodynamic efficiency and good structural machinability. Design/methodology/approach First, the design parameters were derived from the blade loading distribution and the meridional geometry in the impeller three-dimensional (3D) inverse design. The blade wrap angle at the middle span surface and the spanwise averaged blade angle at the blade leading edge obtained from inverse design were chosen as the machinability objectives. The aerodynamic efficiency obtained by computational fluid dynamics was selected as the aerodynamic performance objective. Then, using multi-objective optimization with the optimal Latin hypercube method, quadratic response surface methodology and the non-dominated sorting genetic algorithm, the trade-off optimum impellers with small blade wrap angles, large blade angles and high aerodynamic efficiency were obtained. Finally, computational fluid dynamics and computer-aided manufacturing were performed to verify the aerodynamic performance and structural machinability of the optimum impellers. Findings Providing the fore maximum blade loading distribution at both the hub and shroud for the 3D inverse design helped to promote the structural machinability of the designed impeller. A straighter hub coupled with a more curved shroud also facilitated improvement of the impeller’s structural machinability. The preferred impeller was designed by providing both the fore maximum blade loading distribution at a relatively straight hub and a curved shroud for 3D inverse design. Originality/value The machining difficulties of the designed high-efficiency impeller can be reduced by reducing blade wrap angle and enlarging blade angle at the beginning of impeller design. It is of practical value in engineering by avoiding the follow-up failure for the machining of the designed impeller.

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Optimization Processes for Automated Design of Industrial Systems

Bestle

2024

IUTAM Bookseries

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A multi-objective optimization framework for robust axial compressor airfoil design

Cited by 8 publications

References 16 publications

Multidisciplinary Lightweight Optimization for Front Impact Structure of Body Frame Based on Active and Passive Safety

Multidisciplinary Lightweight Optimization for Front Impact Structure of Body Frame Based on Active and Passive Safety

Multi-objective optimization design of a centrifugal impeller considering both aerodynamic efficiency and structural machinability

Optimization Processes for Automated Design of Industrial Systems

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