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相关概念视频

Steel Manufacturing01:26

Steel Manufacturing

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Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
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Mechanical Characteristics of Steel01:18

Mechanical Characteristics of Steel

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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...
769
Design of Transmission Shafts01:16

Design of Transmission Shafts

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The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by...
463
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

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This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
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Production of Formed Elements01:34

Production of Formed Elements

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Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
Most HSCs commit to...
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Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

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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...
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相关实验视频

Updated: Sep 16, 2025

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
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在线优化连续造切割的优化.

Jing Li1, Jianjing Zhang2, Xiaoru Xing2

  • 1Hebei Institute of Mechanical and Electrical Technology, Xingtai, 054000, Hebei, China. 2803790368@qq.com.

Scientific reports
|July 4, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种在线算法,用于优化钢材连续造切割. 它通过实时调整切割方案来最大限度地减少浪费并满足需求,从而提高生产效率.

关键词:
连续造 连续造嵌套优化 嵌套优化在线优化优化在线优化实时决策 实时决策钢铁生产效率的提高 钢铁生产效率的提高

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科学领域:

  • 金工程 金工程 金工程
  • 运营研究 运营研究

背景情况:

  • 连续造对于钢铁生产效率至关重要.
  • 优化切割过程对于最大限度地减少材料浪费和满足客户需求至关重要.
  • 需要实时调整来处理生产异常.

研究的目的:

  • 为钢铁连续造切割问题提出一个在线优化算法.
  • 通过实时切割方案调整,提高生产连续性和效率.
  • 为了减少材料浪费和二次切割操作.

主要方法:

  • 开发了一个优化模型,结合了嵌套模型和分析建模.
  • 利用计算机穿越算法进行优化.
  • 实施了在线算法,可以在生产过程中实时进行调整.

主要成果:

  • 显著减少了切割损失.
  • 成功满足各种生产要求.
  • 最小化了对二次切割操作的需求.
  • 展示了广泛的实际应用潜力.

结论:

  • 拟议的在线优化算法有效地解决了钢材连续造中的切割优化问题.
  • 实时调整确保生产连续性和效率,即使有异常.
  • 该方法在减少废物和运营效率方面提供了实质性的改进.