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相关概念视频

Design Example: Traverse Angle Computations01:25

Design Example: Traverse Angle Computations

282
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
282
Wedges01:24

Wedges

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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...
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Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

728
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the torque...
728
Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

464
The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...
464
Design of Transmission Shafts01:16

Design of Transmission Shafts

712
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 reconfiguring the...
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Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

275
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.
275

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Application of Design Aspects in Uniaxial Loading Machine Development
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基于足迹角度的AWJ切割过程质量建模和优化

Andrzej Perec1, Elzbieta Kawecka1, Wojciech Zajac1

  • 1Faculty of Technology, The Jacob of Paradies University, 66-400 Gorzów Wielkopolski, Poland.

Materials (Basel, Switzerland)
|December 31, 2025
PubMed
概括

控制磨料喷水 (AWJ) 切割参数,如磨料流量和压力,影响加工足迹.

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

背景情况:

  • 磨砂式喷水切割 (AWJ) 是一种多功能加工方法.
  • 工艺效率和表面质量受磨料流量,工作压力和横行速度等控制因素的影响.
  • 加工足迹的条纹角是AWJ切割性能的一个关键指标.

研究的目的:

  • 为了研究控制参数对AWJ切割中的条纹角的影响.
  • 为了实现高效率和优越的表面质量,特别是对于高冲击和耐磨钢等材料.
  • 为了实现AWJ切割过程的实时质量控制.

主要方法:

  • 研究AWJ控制参数与纹角之间的关系.
  • 在线不断测量喷射偏斜角度的开发方法.
  • 实现基于测量角度的切割参数的实时调整.

主要成果:

  • 证明控制参数可以有效地影响条纹角.
  • 在切割具有挑战性的材料方面实现了高效率和高质量.
  • 在AWJ加工中建立了在线质量控制和参数优化的基础.

结论:

  • 控制AWJ切割参数允许精确地管理纹角度.
关键词:
磨损水喷气式喷气式喷气式喷气式喷气式喷气式喷气式喷气式喷气式喷气式喷气机械加工效率 机械加工效率 机械加工效率机械加工质量 加工质量建模建模模型是什么预测 预测 预测 预测

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  • 在线监控和实时参数调整提高了工艺效率和表面质量.
  • 这种方法使AWJ切割更容易适应新的复杂材料.