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相关概念视频

Support Reactions01:30

Support Reactions

441
A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
The purpose of the supports is to prevent the translational motion of the system by applying an equal and opposite force and to prevent the system's rotation by applying...
441
Support Reactions in Three Dimensions01:27

Support Reactions in Three Dimensions

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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...
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Stability of structures01:14

Stability of structures

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In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
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相关实验视频

Updated: Jul 14, 2025

Author Spotlight: Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-P&#233;rot Etalon
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为光学镜子设计灵活的支结构设计.

Ning Xu1,2, FuSheng Zhang1,2, AnBo Jiang1

  • 1Changshu Institute of Technology, Changshu, 215500, China.

Heliyon
|October 9, 2023
PubMed
概括
此摘要是机器生成的。

为航空光学系统的高精度镜子组装开发了一种全新的半动力灵活支结构. 这种创新的设计确保了稳定性,可靠性和卓越的准确性,满足了严格的航空要求.

关键词:
从空中进行光学成像.灵活的支持灵活的支持模拟分析分析模拟分析表面形状错误测试测试 表面形状错误测试

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科学领域:

  • 光学工程是指光学工程.
  • 机械工程 机械工程
  • 航空航天工程 航空航天工程

背景情况:

  • 高精度镜子组件对于航空光学系统至关重要.
  • 现有的组装方法在空中应用中面临挑战.
  • 灵活的支持结构为提高绩效提供了潜在的解决方案.

研究的目的:

  • 设计和验证空中镜子的半动力弹性支结构.
  • 分析灵活的镜子支的运动原理和组装方法.
  • 为了实现航空航天领域高精度,稳定和可靠的镜子安装.

主要方法:

  • 使用空间机制的动力学理论对空间自由度的理论分析.
  • 一个半动力弹性支结构的设计,适用于空中应用.
  • 通过有限元分析 (FEA) 验证设计.
  • 实验性处理,组装和测试开发的结构.

主要成果:

  • 实现了镜子组装精度优于λ/50 (λ = 632.8 nm).
  • 由此产生的结构的质量小于2公斤.
  • 该组件的基本频率为645Hz,超过了设计要求.
  • FEA和实验测试证实了结构的有效性.

结论:

  • 开发的半动力灵活支结构满足了航空光学系统的苛刻要求.
  • 该结构提供了优势,包括简单的组装,高精度,稳定性和可靠性.
  • 这种设计代表了空中光学系统组装的重大进步.