移動する機械コンタクトの磨損を予測する:回帰アルゴリズムと特徴選択技術の比較分析
Jianjie Jiang1, Intisar Omar1, Muhammad Khan1
1School of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield, UK.
ISA transactions
|August 26, 2025
まとめ
機械学習モデルを用いた 正確な耐久性予測は 産業用アプリケーションに不可欠です この研究は,ピン・オン・ディスク・システムにおける磨損量推定のための予測モデルを開発し,機能選択とサンプルサイズを最適化して精度を高めています.
科学分野:
- 材料科学
- 機械工学
- データサイエンス
背景:
- 正確な磨損予測は,製造,輸送,発電における運用リスクを軽減し,停止時間を最小限に抑え,部品の寿命を延長するために不可欠です.
- ピン・オン・ディスクシステムは,制御された条件下でトライボロジカルな行動と材料の磨損を研究するために広く使用されています.
研究 の 目的:
- ピン・オン・ディスクシステムの磨損量を推定するための機械学習ベースの予測モデルを開発し,評価する.
- 磨きに最も影響するパラメータを特定し,異なる回帰アルゴリズムの性能を比較します.
主な方法:
- 摩擦係数,接触力,浸透深さ,滑り距離,音圧,負荷を含む実験データを使用した.
- 主要な予測パラメータを特定するために機能選択技術 (包装と埋め込み) を採用した.
- 最適なサンプルサイズを決定し,モデルの複雑性をバランスさせ,オーバーフィッティングを防止します.
- 適用および比較された回帰モデル:線形回帰,サポートベクトルマシン (SVM),ランダムフォレスト (RF).
- 平均絶対誤差 (MAE),平均偏差誤差 (MBE),平方根誤差 (RMSE),および決定係数 (R2) を用いてモデルの性能を評価した.
主要な成果:
- 特徴の選択により,着用予測に最も適したパラメータが特定され,モデルの精度が向上しました.
- サンプルサイズを最適化することで,モデルの一般化が改善され,不十分なフィッティングとオーバーフィッティングが軽減されました.
- 比較分析は,着用量推定のための異なる回帰アルゴリズムの異なる予測能力を示しました.
- 開発されたモデルは,定義されたエラーメトリクスで磨き量の定量的な評価を提供した.
結論:
- この研究は,ピン・オン・ディスク・システムにおける精密な磨損量予測のための体系的な機械学習アプローチを提示しています.
- この結果は,耐久分析のパラメータの重要性とアルゴリズムの性能に関する貴重な洞察を提供します.
- この研究は,磨損予測の精度を向上させ,産業の運用コストを削減することを目指す実務家と研究者のための堅固な枠組みを提供します.
さらに関連する動画
関連する概念動画
Bearings: Problem Solving
327
Understanding the calculations and concepts related to double-collar bearings is essential for engineers and designers to optimize the performance of these components in various applications. By analyzing the bearing under different conditions, one can ensure that it can withstand the forces and moments experienced during operation. This knowledge enables better decision-making when designing and selecting bearings for specific purposes and configurations. Consider a double-collar bearing with...
327
Journal Bearings
765
Journal bearings are mechanical components that support and provide lateral stability to rotating shafts and axles. They are crucial in reducing friction, wear, and vibration in machinery such as engines, turbines, and pumps. The principle behind journal bearings is forming a thin lubricant film between the bearing surface and the rotating shaft, which minimizes direct contact and reduces frictional forces.
To better understand the concept of journal bearings, consider a rope winch with dry or...
To better understand the concept of journal bearings, consider a rope winch with dry or...
765
Bearing Stress
1.1K
Bearing stress refers to the contact pressure between two separate bodies. To visualize this, imagine a bolt thrust through a plate. The bolt applies a force to the plate, which exerts an equal but opposite force back onto the bolt. This force isn't just a singular entity but a compilation of numerous smaller forces distributed across the contact surface between the bolt and the plate.
Due to the intricacy of these microforces, an average value, known as bearing stress, is often used by...
Due to the intricacy of these microforces, an average value, known as bearing stress, is often used by...
1.1K
Fatigue
238
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
238
Design Example: Deciding Thickness of Lubricating Fluid in a Shaft
155
Effective lubrication between a rotating shaft and its bearing housing is essential in rotating machinery to minimize friction, wear, and energy loss. With carefully controlled thickness and viscosity, the lubricant layer prevents metal-to-metal contact, ensuring smooth operation.
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular...
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular...
155
Pivot Bearings
1.5K
In mechanical systems, bearings are crucial in facilitating relative motion between two components while minimizing friction and wear. They help distribute various loads (radial, axial or a combination of both loads) across machinery parts, ensuring smooth and efficient operation.
A pivot bearing is a specialized type of bearing designed to support axial loads on a rotating shaft. The bearing surface, or the pivot, is positioned at the end of a shaft to support the axial thrust. The pivot may...
A pivot bearing is a specialized type of bearing designed to support axial loads on a rotating shaft. The bearing surface, or the pivot, is positioned at the end of a shaft to support the axial thrust. The pivot may...
1.5K


