相关实验视频
Updated: Jun 3, 2025

09:17
Surrogate Model Development for Digital Experiments in Welding
Published on: March 28, 2025
694
机器学习模型的设计,开发和测试,以估计摩擦接接接头的特性
Sajjad Arif1, Abdul Samad1, Muhammed Muaz1
1Department of Mechanical Engineering, Aligarh Muslim University, Aligarh 202002, India.
Materials (Basel, Switzerland)
|January 11, 2025
概括
这项研究使用机器学习来预测摩擦的强度和硬度,动接接头. 人工神经网络 (ANN) 提供了最准确的预测,与实验数据保持一致.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算科学 计算科学
背景情况:
- 摩擦接 (FSW) 是各种材料的关键连接工艺.
- 精确预测机械性能,如最终抗拉强度 (UTS) 和硬度,对于质量控制至关重要.
- 监督机器学习为建模复杂材料行为提供了一个有希望的方法.
研究的目的:
- 为了估计最终的抗拉强度 (UTS) 和摩擦硬度,将接接头起来.
- 为了比较这项估计任务的六种不同的监督机器学习模型的性能.
- 确定最准确的模型来预测FSW中的机械性质.
主要方法:
- 使用了六种监督机器学习模型:线性回归,支持向量回归,决策树回归,随机森林回归,K-最近邻居和人工神经网络 (ANN).
- 经过训练和测试的模型使用200条输入参数的数据集,输入参数包括工具穿越速度,工具旋转速度,针直径,肩直径,工具偏移和工具倾斜.
- 由于在初步评估中表现优异,雇佣了ANN.
主要成果:
- 人工神经网络 (ANN) 在评估的模型中显示出最高的准确性.
- 该ANN模型成功估计了UTS和摩擦摩擦接接头的硬度.
- 提取了输入参数 (针直径,工具偏移,工具旋转速度) 和输出属性 (UTS,硬度) 之间的关键关系.
结论:
- 人工神经网络 (ANN) 方法对于准确预测UTS和摩擦接接头的硬度非常有效.
- ANN模型的预测与实验结果有很强的一致性,验证了其概括能力.
- 该研究成功建立了一种基于数据的方法,用于优化FSW过程参数,以实现所需的机械性能.
相关概念视频
Frictional Force
7.7K
When a body is in motion, it encounters resistance because the body interacts with its surroundings. This resistance is known as friction, a common yet complex force whose behavior is still not completely understood. Friction opposes relative motion between systems in contact, but also allows us to move. Friction arises in part due to the roughness of surfaces in contact. For one object to move along a surface, it must rise to where the peaks of the surface can skip along the bottom of the...
7.7K
Typical Model Studies
340
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
340
Wedges
1.1K
A wedge is a simple machine that serves various purposes, such as adjusting the elevation of structural or mechanical parts, providing stability for heavy objects, and splitting a body into two parts. This versatile tool can amplify an applied force, making it easier to manipulate large or heavy objects.
Consider using a wedge to lift a heavy slab. Here, the wedge functions by converting the applied force into a much larger force directed almost perpendicular to the initial force. This...
Consider using a wedge to lift a heavy slab. Here, the wedge functions by converting the applied force into a much larger force directed almost perpendicular to the initial force. This...
1.1K
Mechanical Characteristics of Steel
393
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
393
Dry Friction
340
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
340
Frictional Forces on Screws
1.1K
Screws are characterized by a helical ridge known as a thread wrapped around a cylindrical shaft. They are commonly used as fasteners to hold objects together or to transmit power and motion in machines. One type of screw that is particularly useful for transmitting power is the square-threaded screw.
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
1.1K

