強化学習ベースのトポロジー最適化を用いた広帯域音響吸収用水中コーティングの設計
Kee Seung Oh1, Cheeyoung Joh1, Joo Hwan Oh2
1Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
The Journal of the Acoustical Society of America
|February 2, 2026
まとめ
新しい強化学習ベースのトポロジー最適化(RL-TO)法により、高度な水中音響コーティングが設計されます。この手法は、ステルス能力を高めるための優れた広帯域および低周波音吸収を実現します。
科学分野:
- 材料科学
- 音響工学
- 人工知能
背景:
- 水中音響コーティングは、騒音低減とステルスに不可欠です。
- 吸音の最大化は、パフォーマンスを向上させる鍵となります。
- 従来の手法では、広帯域および低周波吸収の達成に限界があります。
研究 の 目的:
- 高度な水中音響コーティングを設計するための高度な方法を開発すること。
- 広帯域および低周波音吸収を達成すること。
- 最適化された音響コーティングを通じてステルス能力を高めること。
主な方法:
- 強化学習ベースのトポロジー最適化(RL-TO)手法を導入しました。
- 強化学習とトポロジー最適化を統合し、動的な探索を行いました。
- 導波と局所共振特性について、最適化されたトポロジーを分析しました。
主要な成果:
- 最適化されたトポロジーは、低周波数での導波と高周波数での局所共振を示しました。
- 複数のターゲット周波数で平均吸音係数0.9を超えました。
- パラメータ研究により、導波路や共振器などの幾何学的特徴の重要性が確認されました。
結論:
- RL-TOは、高性能な水中音響コーティングを設計するための強力かつ効率的なツールです。
- 提案された手法は、従来のアプローチよりも大幅な進歩を提供します。
- 最適化されたコーティングは、広い周波数範囲で堅牢なパフォーマンスを示します。
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