基于多场合和数据驱动的优化,对行星滚筒的冷却过程参数进行优化
Fengli Yue1, Yang Shao1, Hongyun Sun1
1College of Automotive and Transportation, Shenyang Ligong University, Shenyang 110159, China.
Materials (Basel, Switzerland)
|September 13, 2025
概括
在行星中优化滚筒冷却可以防止铜粘附,并提高产品质量. 机器学习模型,特别是随机森林模型,有效地预测冷却性能,从而可以显著提高传热效率.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 计算流体动力学的流体动力学.
背景情况:
- 在三卷行星中,高卷表面温度会导致铜粘附,降低卷质量和产品产量.
- 有效的滚筒冷却对于保持表面完整性和提高铜管制造中的生产效率至关重要.
研究的目的:
- 为了研究喷雾冷却参数对滚面冷却性能的影响.
- 开发和验证用于滚筒冷却的流体-固体-热合模型.
- 确定最有效的机器学习模型来预测冷却性能并优化喷雾环几何.
主要方法:
- 开发了一种流体-固体-热合模型,并通过实验验证了它.
- 评估随机森林 (RF),梯度提升决策树 (GBDT) 和支持矢量机器 (SVM) 用于预测建模.
- 采用粒子集群优化 (PSO) 来优化基于射频模型预测的喷雾环参数.
主要成果:
- 与实验数据相比,相结合的模型实现了高精度 (最大偏差为4.36%).
- 射频模型的表现优于GBDT和SVM,显示出强大的预测能力 (RMSE=1.73,MAE=1.32,R2=0.91).
- 优化的RF-PSO方法将传热系数提高了44.72%.
结论:
- 开发的合模型准确地预测了滚动表面的冷却.
- 机器学习,特别是射频,为预测冷却性能提供了复杂模拟的高效替代方案.
- 优化的喷雾冷却参数显著提高了传热,为改进的精密管制造提供了基础.
相关概念视频
01:24Bearings: Problem Solving
480
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...
480
01:20Mechanisms of Heat Transfer II
4.2K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.2K
01:27Thermal expansion and Thermal stress: Problem Solving
2.1K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.1K
01:14Mechanisms of Heat Transfer
1.6K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.6K
01:17Rolling Resistance: Problem Solving
785
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
785
01:15Design of Transmission Shafts - Stress Analysis
712
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
712