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相关概念视频

Mesh Analysis with Current Sources01:10

Mesh Analysis with Current Sources

1.9K
Mesh analysis becomes simpler when analyzing circuits with current sources, whether independent or dependent. The presence of current sources reduces the number of equations required for analysis. Two cases illustrate this:
Current Source in One Mesh: The analysis process is straightforward when a current source is found in only one mesh within the circuit. Mesh currents are assigned as usual, with the mesh containing the current source excluded from the analysis. Kirchhoff's voltage law...
1.9K
Mesh Analysis01:20

Mesh Analysis

1.4K
Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...
1.4K
Boundary Conditions: Lossless Lines01:21

Boundary Conditions: Lossless Lines

398
Consider a single-phase, two-wire, lossless transmission line terminated by an impedance at the receiving end and a source with Thevenin voltage and impedance at the sending end. The line, with length, has a surge impedance and wave velocity determined by the line's inductance and capacitance.
At the receiving end, the boundary condition states that the voltage equals the product of the receiving-end impedance and current. This relationship is expressed as a function of the incident and...
398
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.6K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.6K
Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

799
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
799
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

1.0K
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
1.0K

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相关实验视频

Updated: Jan 10, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180&#176; Curved Artery Test Section
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Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Published on: July 19, 2016

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变化网格通过光滑卷轴数量进行抵消.

Haoran Sun, Shuang Wu, Hujun Bao

    IEEE transactions on visualization and computer graphics
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    概括
    此摘要是机器生成的。

    本研究介绍了表面网 compensating 的变化框架,结合隐式和显式方法. 该方法增强了形状控制,并减少了形状建模应用的交叉问题.

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    相关实验视频

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    Parametric Optimization Design Method for Friction Plates of Hydro-Viscous Clutches
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    科学领域:

    • 计算机图形 计算机图形
    • 计算几何学的计算几何学
    • 几何建模 几何建模

    背景情况:

    • 表面网格偏移对于形状建模至关重要,但与交叉缺陷 (隐式方法) 或自我交叉 (显式方法) 面临挑战.
    • 现有的方法努力平衡强度与十字路口问题,精确的形状控制,如保留利的特征.

    研究的目的:

    • 开发一种新的表面网 compensating 的变化框架,它结合了隐式和显式方法的优势.
    • 为了实现灵活的形状控制,包括保持利的特征和坚持特定的表面类型 (例如四边形),同时减轻交叉问题.

    主要方法:

    • 提出了一个变化框架,将网状顶点位置视为变量,并使用一个光滑的卷积数字段.
    • 定义了一个客观函数,强制要求输入网格位于由结果网格诱导的场的偏移轮上.
    • 形状规范化,如利的特征保存和交叉点处罚,都被纳入了优化问题中.

    主要成果:

    • 提出的方法成功地抵消了网格,同时保留了原始形状的利特征.
    • 它允许将特定的网状部分限制在四边形表面.
    • 该框架有效地缓解了传统抵消技术固有的交叉问题.

    结论:

    • 变化框架为表面网格抵消提供了强大而通用的解决方案.
    • 它结合了隐式和显式方法的优势,提供了卓越的形状控制和交叉处理.
    • 由于场区分能力的数值友好性,可以促进实际实施和进一步开发.