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相关概念视频

Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

150
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...
150
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

881
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...
881
Machines: Problem Solving II01:30

Machines: Problem Solving II

377
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
377
Introduction to Statistical Process Control01:15

Introduction to Statistical Process Control

272
Statistical Process Control (SPC) is a method used to monitor and control quality within processes, particularly in manufacturing and service delivery, by employing statistical methods. SPC aims to distinguish between natural (common cause) variation and variation due to specific changes or events (special cause), allowing for timely improvements and sustained quality. The control chart, a pivotal tool in SPC, visually displays data over time alongside a central line of upper and lower control...
272
Simplified Synchronous Machine Model01:30

Simplified Synchronous Machine Model

334
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...
334
Machines: Problem Solving I01:22

Machines: Problem Solving I

414
A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
414

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五轴数控床的生产数据集,具有多个变换.

Mario Martinez1, Anna-Maria Schmitt1, Andreas Schiffler1

  • 1Technical University of Applied Sciences Würzburg-Schweinfurt, Institute of Digital Engineering (IDEE), Schweinfurt, 97421, Germany.

Scientific data
|June 23, 2025
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概括

本研究详细介绍了一个全面的五轴数控削生产数据集,涵盖了三种不同的产品的机器准备和加工. 这些数据有助于分析制造工艺和优化策略.

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科学领域:

  • 制造业 工程 制造工程
  • 材料科学 材料科学 材料科学
  • 机械工程 机械工程

背景情况:

  • 数控削是一种关键的自动化制造工艺.
  • 数据驱动的方法对于优化生产效率至关重要.
  • 为了开发和验证削工艺模型,需要标准化的数据集.

研究的目的:

  • 为五轴数控削提供一个广泛的生产数据集.
  • 提供机器准备 (换机) 和生产阶段的全面记录.
  • 为了使CNC制造业的进一步研究和开发.

主要方法:

  • 使用五轴数控机器制造三种几何上不同的产品.
  • 在更换和生产过程中系统记录机器控制特征.
  • 使用切换矩阵覆盖所有产品组合的实验设计.
  • 重复生产运行以确保数据的稳定性.

主要成果:

  • 一个详细的数据集,包括NC代码,工具信息和过程参数.
  • 包括一个Jupyter笔记本,用于数据分析和可重复性.
  • 涵盖30个制造阶段和5个切换矩阵的综合数据.

结论:

  • 该数据集为分析五轴CNC削工艺提供了宝贵的资源.
  • 能够研究优化交换时间和生产效率.
  • 支持开发先进的制造分析和模拟工具.