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Related Concept Videos

Yield Criteria for Ductile Materials under Plane Stress01:25

Yield Criteria for Ductile Materials under Plane Stress

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In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
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Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
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Related Experiment Video

Updated: Sep 9, 2025

Design and Optimization Strategies of a High-Performance Vented Box
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The Multi-Objective Optimization of a Dual C-Type Gold Ribbon Interconnect Structure Considering Its Geometrical

Guangmi Li1, Song Xue1, Jinyang Mu2

  • 1Guangzhou Institute of Technology, Xidian University, Guangzhou 510555, China.

Micromachines
|August 28, 2025
PubMed
Summary
This summary is machine-generated.

This study optimizes dual C-type gold ribbon geometry for satellite antennas, minimizing signal loss from manufacturing and environmental factors. The findings guide improved antenna-microwave integration design.

Keywords:
dual C-type gold ribbon interconnectionelectromagnetic performancefluctuation rangeintelligent predictionmulti-objective optimization

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Area of Science:

  • Electrical Engineering
  • Aerospace Engineering
  • Materials Science

Background:

  • Satellite systems require high integration and low cost, driving antenna and microwave component integration.
  • Dual C-type gold ribbons are crucial electromagnetic bridges in integrated satellite systems.
  • Geometric deformations in gold ribbons cause significant signal transmission energy loss.

Purpose of the Study:

  • To develop a method for determining the design range of dual C-type gold ribbon geometrical parameters.
  • To apply this method for performance prediction and parameter optimization of microstrip antennas.
  • To provide theoretical guidance for optimizing integrated antenna and microwave component modules.

Main Methods:

  • Mechanical response analysis of antennas under operating conditions and manufacturing disturbances.
  • Identification and ranking of significant geometrical parameters affecting performance.
  • Utilizing a chaos feedback adaptive whale optimization algorithm-back propagation neural network as a surrogate model.
  • Employing a multi-objective red-billed blue magpie optimization algorithm for parameter optimization.

Main Results:

  • Calculated geometry fluctuation ranges considering mechanical responses and manufacturing disturbances.
  • Identified key geometrical parameters with significant impact on antenna performance.
  • Established a relationship between geometrical parameters and antenna electromagnetic performance using a surrogate model.
  • Optimized configuration parameters for the gold ribbon.

Conclusions:

  • The proposed method effectively determines the design range for dual C-type gold ribbon geometry.
  • Optimized geometry minimizes energy loss and enhances the electrical performance of satellite antennas.
  • This research provides crucial theoretical guidance for the design and optimization of integrated antenna-microwave modules.