Optimization of the design of radar-absorbing composite structures using response surface model with verification using scanning free space measurement

Son, Dae-Sung; Hyun, Jong-Min; Lee, Jung-Ryul; Lee, Wonjun

doi:10.1016/j.compstruct.2017.11.075

Cited by 17 publications

(6 citation statements)

References 14 publications

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“…In the optimized design, the objective function is set to maximize the absorption bandwidth of the X-band stealth. The results confirmed that using the S-FSM not only the electromagnetic performance of the samples could be detected but also the defects caused by the manufacturing process [6]. Ahmadi et al describe the optimization of parameters involved in the production of nanofibers.…”

Section: Related Worksupporting

confidence: 55%

Structure Optimization of Carbon Nanotubes Based on Swarm Intelligence Algorithm and Evolutionary Computation

Liu

2022

Journal of Nanomaterials

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Swarm intelligence algorithm is an emerging evolutionary computing technology, which has become the focus of more and more researchers. It has a very special connection with artificial life, especially evolutionary strategies and genetic algorithms. The swarm intelligence algorithms you see include genetic algorithm, particle swarm optimization algorithm, and ant colony algorithm. This part of the content has been supplemented in the article. Evolutionary computing is a group-oriented random search technology and method produced by simulating the evolutionary process of organisms in nature. Evolutionary computing is based on natural selection strategy: survival of the fittest, elimination of the unfit, and individuals with large fitness values have a higher survival probability than individuals with small fitness values. The purpose of this paper is to study the structure optimization of carbon nanotubes based on swarm intelligence algorithm and evolutionary computation. It is expected to optimize the structure of carbon nanotube materials with the help of intelligent evolution algorithm, so that it can be used in more fields. In this paper, the preparation process and principle of carbon nanotube-based gas sensors are studied, and the preparation process of the side-heated gas sensor is selected. This paper focuses on the strain sensing performance of carbon nanotubes, analyzes various parameters that characterize the sensing performance, and proposes feasible technical routes for improvement, optimization and improvement. The experimental results in this paper show that when different proportions of oxides are added, the tensile strength of carbon nanotube materials is increased by about 8%, and the elastic modulus is increased by up to 40%. After adding CNFs, the tensile strength increased by up to 18%, and the elastic modulus increased by up to 50%.

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Section: Related Worksupporting

confidence: 55%

Structure Optimization of Carbon Nanotubes Based on Swarm Intelligence Algorithm and Evolutionary Computation

Liu

2022

Journal of Nanomaterials

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“…6−8 Furthermore, the accelerated development of modern military radar technology poses a great threat to the security of national defense. 9 Hence, the significance of electromagnetic wave absorption (EMA) materials that possess robust absorption and a broad effective absorption bandwidth (EMB) cannot be overstated in view of their relevance in both military and civilian domains. At present, the complex application environment for contemporary EMA materials imposes new requirements including superior thermal resistance, chemical stability, and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Owing to the strong penetration and substantial information transmission capacity, electromagnetic waves with high frequency (GHz) are widely used in wireless communications, aerospace, and military radar. − However, the propagation of numerous electromagnetic waves in free space results in electromagnetic pollution, which not only interferes with communication equipment but also poses a health risk. − Furthermore, the accelerated development of modern military radar technology poses a great threat to the security of national defense . Hence, the significance of electromagnetic wave absorption (EMA) materials that possess robust absorption and a broad effective absorption bandwidth (EMB) cannot be overstated in view of their relevance in both military and civilian domains.…”

Section: Introductionmentioning

confidence: 99%

Efficient and Homogeneous Carbonitriding of High-Entropy Alloys by a Mechanochemical Process for Obtaining Coordinated Electromagnetic Matching

Jia,

Jiang,

et al. 2023

ACS Appl. Mater. Interfaces

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“…6 An FSS, a part of the RAS, can transmit or reflect specific frequencies and filter EM waves. 7 The radar absorption properties and shape characteristics of stealth structures help reduce the RCS area of an aircraft and thus minimize radar detection.…”

Section: Introductionmentioning

confidence: 99%

Robotic scanning free-space measurement system for electromagnetic performance evaluation of curved radar absorbing structures

Din

Hyun

Son

et al. 2022

International Journal of Advanced Robotic Systems

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Radar absorbing structures are manufactured for stealth missions and total quality inspection applies to evaluate their performances before assembly to stealth weapon systems. This study adopted a six-axis robot arm to move a target specimen in a scanning free-space measurement system for electromagnetic performance evaluation. The six-axis robot arm completely enables the system to maintain the specimen at the focal point of the antenna and solves the issue of curvature effect on the return loss results of the curved specimens, faced in the two- and three-axis scanning free-space measurement systems. The six-axis robotic scanning free-space measurement system uses a RobotStudio to extract the position and orientation of each target point on the specimen to be evaluated and uses a robotic scanning algorithm to transform all the points into a scan path. The system was verified by variable and constant curvature radar absorbing structure specimens with frequency selective surfaces. Return losses ( S 11s) of the nonsymmetrical cambered airfoil specimen and S-shaped double curvature specimen that could not be accurately evaluated with a three-axis stage-based scanning free-space measurement system were measured by the six-axis robotic scanning free-space measurement system. All the specimen results adhere to the theoretical parameters of the specimen. The transition region results of the S-shaped specimen were studied using effective radius of curvature. Finally, the inspected results of the S-shaped specimen were curvature compensated to check the effect of negative and positive curvature on the specimen resonance frequency performance.

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Optimization of the design of radar-absorbing composite structures using response surface model with verification using scanning free space measurement

Cited by 17 publications

References 14 publications

Structure Optimization of Carbon Nanotubes Based on Swarm Intelligence Algorithm and Evolutionary Computation

Structure Optimization of Carbon Nanotubes Based on Swarm Intelligence Algorithm and Evolutionary Computation

Efficient and Homogeneous Carbonitriding of High-Entropy Alloys by a Mechanochemical Process for Obtaining Coordinated Electromagnetic Matching

Robotic scanning free-space measurement system for electromagnetic performance evaluation of curved radar absorbing structures

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