関連する実験動画
Updated: Jan 7, 2026

10:09
Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
7.0K
ハイブリッドネットワークに基づく二軸旋盤複合加工機における熱誤差のモデリング
Wentao Lu1, Jianchen Wang2, Jianqiang Zhou1
1Zhejiang Provincial Key Laboratory of Intelligent Manufacturing for Aerodynamic Equipment, Quzhou University, Quzhou, 324000, China.
Scientific reports
|December 30, 2025
まとめ
本研究では、二軸複合加工機における熱誤差予測のためにSCSSAを用いた最適化CNN-BiLSTMネットワークを紹介する。新しいモデルは精度を大幅に向上させ、予測誤差を削減し、実用的な工学ソリューションを提供する。
科学分野:
- 機械工学
- 製造技術
- 製造における人工知能
背景:
- 熱誤差は、高精度CNC工作機械の加工精度を制限する重要な要因です。
- 二軸旋盤複合加工機は、複雑な熱挙動により、熱誤差補償に特有の課題をもたらします。
研究 の 目的:
- 二軸旋盤複合加工機における熱誤差を予測するための、インテリジェントで高精度な方法を開発すること。
- 高度な最適化技術を通じて、ハイブリッドニューラルネットワークのモデリング効率を向上させること。
主な方法:
- 1200MSY旋盤複合加工二軸複合加工機から温度場および熱誤差データを収集しました。
- 温度に敏感な測定点を選択するために、K平均クラスタリング-灰色関連結合アルゴリズムを採用しました。
- 熱誤差モデリングを改善するために、SCSSAアルゴリズムを使用してCNN-BiLSTMハイブリッドネットワークを最適化しました。
主要な成果:
- SCSSAアルゴリズムは、GWOおよびWOAと比較して優れた収束性と大域的探索能力を示しました。
- 提案モデルは、ベンチマークモデルと比較して、二乗平均平方根誤差(RMSE)を38.77%、平均絶対誤差(MAE)を47.06%削減しました。
- 予測誤差は、±4.6μm(速度条件)および±5μm(主軸タイプ)内に維持されました。
結論:
- SCSSA最適化CNN-BiLSTMネットワークは、二軸工作機械における熱誤差の効果的なインテリジェント予測スキームを提供します。
- 開発された方法は、高い工学的実用性を提供し、加工精度を大幅に向上させます。
- 本研究は、高度な製造プロセスにおける熱誤差を軽減するための堅牢なソリューションに貢献します。
関連する概念動画
Simplified Synchronous Machine Model
719
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
In this model, each generator is connected to a...
719
Multimachine Stability
529
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
529
Sequence Networks of Rotating Machines
466
A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
466
Design Example: Creating a Hydraulic Model of a Dam Spillway
638
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
638
Mechanical Efficiency of Real Machines
1.2K
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
1.2K
Residual Stresses in Circular Shafts
492
In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the...
492

