Aerodynamic Optimization of Transonic Wing Design Based on Evolutionary Algorithm (2008)
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi, Takashi Nakamura
ABSTRACT: Evolutionary Algorithm (EA) is applied to a practical three-dimensional shape optimization for aerodynamic design of an aircraft wing. Aerodynamic performances of the design candidates are...
An Enhanced Evolutionary Algorithm with a Surrogate Model (2008)
Yongsheng Lian, Meng-sing Liou, Akira Oyama
Abstract. In this paper we present an enhanced evolutionary algorithm (EA) to solve computationally expensive design optimization problems. In this algorithm we integrate a genetic algorithm (GA)...
A MULTI-STAGE COMPRESSOR DESIGN OPTIMIZATION USING CFD (2008)
A multi-stage compressor design is a typical multiobjective problem (MOP) involving some competing objectives such as maximization of efficiency, maximization of total pressure ratio,
A Study on Airfoil Design for Future Mars Airplane (2008)
An optimum airfoil design for future Mars airplane for Mars exploration is obtained by evolutionary computation coupled with a two-dimensional Reynolds-averaged Navier-Stokes solver. The optimized...
MULTIOBJECTIVE OPTIMIZATION OF A MULTI-STAGE COMPRESSOR USING EVOLUTIONARY ALGORITHM (2008)
A multiobjective design optimization tool for multistage compressors has been developed. Multiobjective Evolutionary Algorithm is used to handle multiobjective design optimization problems....
AIRFOIL DESIGN OPTIMIZATION FOR AIRPLANE FOR MARS EXPLORATION (2008)
Aerodynamic design optimization of an airfoil for the Mars exploration airplane has been demonstrated by using an evolutionary algorithm. The adaptive range genetic algorithm is used for efficient...
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi, Naoki Hirose
Evolutionary Algorithms (EAs) based on structured coding have been proposed for aerodynamic optimization of wing design. Fractional factorial design is used to investigate interactions of the design...
R. Schilling, W. Haase, J. Periaux, H. Baier, G. Bugeda (eds, Akira Oyama, ...
Abstract. A new constraint-handling method based on Pareto-optimality concept for multiobjective multi-constraint design optimization problems has been proposed. The proposed method does not need any...
Multidisciplinary Wing Design Optimization Using Multiobjective Evolutionary Algorithm (2007)
this paper, a MOEA will be applied to a multiobjective multidisciplinary optimization of a transonic wing design.
Evaluation of the Sequence Data Assemble Software "Shotgun" (2007)
Zhong-qing Wang, Yasufumi Murakami, Toshihiko Eki, Akira Oyama, Yukihiro Eguchi, Akinori Sarai, ...
Introduction The program Shotgun was developed to assemble sequence data in a random sequencing method and has been proved to be an essential tool for the sequencing project of yeast chromosome VI....
Abstract. Real-coded Adaptive Range Genetic Algorithms (ARGAs) have been applied to a practical three-dimensional shape optimization for aerodynamic design of an aircraft wing. The real-coded ARGAs...
Multi-Objective Six Sigma Approach Applied to Robust Airfoil Design for Mars Airplane (2007)
Koji Shimoyama, Akira Oyama, Kozo Fujii
A new optimization approach for robust design, design for multi-objective six sigma (DFMOSS) has been developed and applied to robust aerodynamic airfoil design for Mars exploratory airplane. The...
High-Fidelity Swept and Leaned Rotor Blade Design Optimization Using Evolutionary Algorithm (2003)
Akira Oyama, Meng-Sing Liou, Shigeru Obayashi
In this paper, aerodynamic blade design optimization for a transonic axial compressor has demonstrated by using an evolutionary-algorithm-based high-fidelity design optimization tool. The present...
Transonic Axial-Flow Blade Shape Optimization Using Evolutionary Algorithm and (2002)
A reliable and efficient aerodynamic design optimization tool using evolutionary algorithm has been developed for transonic compressor blades. A real-coded adaptive-range genetic algorithm is used to...
Real-coded adaptive range genetic algorithm applied to transonic wing optimization (2001)
Akira Oyama, Shigeru Obayashi, Takashi Nakamura
applied to a practical three-dimensional shape optimization for aerodynamic design of an aircraft wing. The real-coded ARGAs possess both advantages of the binary-coded ARGAs and the floating-point...
Real-coded adaptive range genetic algorithm applied to transonic wing optimization (2001)
Akira Oyama, Shigeru Obayashi, Takashi Nakamura
applied to a practical three-dimensional shape optimization for aerodynamic design of an aircraft wing. The real-coded ARGAs possess both advantages of the binary-coded ARGAs and the floating-point...
Real-coded adaptive range genetic algorithm applied to transonic wing optimization (2001)
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi
Real-coded Adaptive Range Genetic Algorithms (ARGAs) have been developed. The real-coded ARGAs possess both advantages of the binary-coded ARGAs and the use of the floating point representation to...
Abstract. Evolutionary Algorithms (EAs) were applied to multidisciplinary transonic wing design optimizations. Aerodynamic performances of the design candidates were evaluated by using the...
Design optimization of supersonic wings using evolutionary algorithms (1998)
Shigeru Obayashi, Kazuhiro Nakahashi, Akira Oyama, Nobuhisa Yoshino
Abstract. Feasibility of evolutionary computations for supersonic wing design optimization was demonstrated by the single-objective aerodynamic optimization and multiobjective, multidisciplinary...