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相关概念视频

Fluid Pressure over Flat Plate of Variable Width01:02

Fluid Pressure over Flat Plate of Variable Width

1.8K
When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
1.8K
Euler's Formula for Pin-Ended Columns01:21

Euler's Formula for Pin-Ended Columns

394
In structural engineering, the stability of columns under compressive axial loads is a critical consideration, described as buckling. A typical example involves a column PQ, which is pin-connected at both ends and subjected to a centric axial load F applied at one end, with a reaction force of F' = -F at the other end. Here, it is crucial to understand that when an applied load exceeds the critical load, buckling occurs as the system becomes unstable.
To calculate the critical load,...
394
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

358
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
358
Fluid Pressure over Flat Plate of Constant Width01:05

Fluid Pressure over Flat Plate of Constant Width

2.2K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
2.2K
Euler's Formula to Columns: Problem Solving01:23

Euler's Formula to Columns: Problem Solving

497
Euler's formula is used in structural engineering to determine the buckling load of columns under various conditions. However, when dealing with systems that incorporate both rigid elements and elastic components, such as springs, the analysis requires a finer approach to determine the critical load. The problem described involves two rigid bars connected at a pivot point with a spring attached and a vertical load applied at one end.
The system comprises two vertical rigid bars, AB and BC,...
497
Euler's Formula to Columns with Other End Conditions01:15

Euler's Formula to Columns with Other End Conditions

651
Euler's formula is very important in the field of structural engineering, providing a foundation for understanding the critical loading conditions of pin-ended columns. This formula links the modulus of elasticity, the moment of inertia of the cross-section, and the column's length, offering a precise calculation of the critical load at which a column is prone to buckling.
651

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相关实验视频

Updated: Sep 19, 2025

Author Spotlight: Development of a Novel Finite Element Analysis Model for Improved Orthognathic Surgical Techniques
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Author Spotlight: Development of a Novel Finite Element Analysis Model for Improved Orthognathic Surgical Techniques

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对于LCP板的有限元分析.

Monika Bajerska1, Beata Świeczko-Żurek1, Marcin Nowak2

  • 1Gdansk University of Technology, Faculty of Mechanical Engineering and Ship Technology, Narutowicza str. 11/12, 80-233, Gdansk, Poland.

Journal of orthopaedics
|June 6, 2025
PubMed
概括

创新的锁定压缩板 (LCP) 为骨折固定提供了卓越的骨稳定,特别是在骨质疏松患者中. 这项研究分析了使用FEM的LCP板生物力学,以优化骨固定和患者恢复.

科学领域:

  • 整形外科手术 整形外科手术
  • 生物医学工程 生物医学工程
  • 材料科学是一种材料科学.

背景情况:

  • 由于生活方式疾病 (如骨质疏松症),事故和患者对移动性的期望,对骨科植入物的需求不断增加.
  • 骨质疏松性骨头对传统的骨折固定方法提出了重大挑战.
  • 锁定式压缩板 (LCP) 与传统板相比,具有优势,包括增强稳定性和在断裂部位减少移动.

研究的目的:

  • 使用LCP板进行骨固定的有限元法 (FEM) 分析.
  • 为了选择用于骨固定的LCP板的最佳材料和参数.
  • 为生物机械评估开发骨板系统的计算模型.

主要方法:

  • 用有限元法 (FEM) 分析来模拟骨板相互作用.
  • 研究了LCP板的材料特性和固定参数.
  • 创建了骨-LCP板块系统的计算模型.

主要成果:

  • 与传统方法相比,LCP板显示出优异的骨稳定性.
  • FEM分析为LCP板的生物机械性能提供了洞察力.
  • 优化材料选择和参数可以提高固定效率.

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结论:

  • 脊椎骨折板代表了骨科骨折固定技术的重大进步.
  • FEM分析是优化植入物设计和手术结果的宝贵工具.
  • 这项研究有助于通过先进的固定技术改善患者的康复和移动性.