Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Mechanical Systems01:22

Mechanical Systems

194
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
194
Frequency of Spring-Mass System01:17

Frequency of Spring-Mass System

5.5K
One interesting characteristic of the simple harmonic motion (SHM) of an object attached to a spring is that the angular frequency, and the period and frequency of the motion, depend only on the mass and the force constant of the spring, and not on other factors such as the amplitude of the motion or initial conditions. We can use the equations of motion and Newton's second law to find the angular frequency, frequency, and period.
Consider a block on a spring on a frictionless surface. There...
5.5K
Stability of structures01:14

Stability of structures

165
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,...
165
Stability of Equilibrium Configuration: Problem Solving01:13

Stability of Equilibrium Configuration: Problem Solving

606
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
606
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

488
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
488
Euler's Formula to Columns: Problem Solving01:23

Euler's Formula to Columns: Problem Solving

243
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,...
243

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Enumerating low-frequency nonphononic vibrations in computer glasses.

The Journal of chemical physics·2024
Same author

Characteristic energy scales of active fluctuations in adherent cells.

Biophysical reports·2023
Same author

Cellular orientational fluctuations, rotational diffusion and nematic order under periodic driving.

Soft matter·2022
Same author

Internally Stressed and Positionally Disordered Minimal Complexes Yield Glasslike Nonphononic Excitations.

Physical review letters·2021
Same author

Extracting the properties of quasilocalized modes in computer glasses: Long-range continuum fields, contour integrals, and boundary effects.

Physical review. E·2020
Same author

Wave attenuation in glasses: Rayleigh and generalized-Rayleigh scattering scaling.

The Journal of chemical physics·2019

相关实验视频

Updated: Jun 30, 2025

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.3K

在挫败的弹质量系统中,自动驱动的配置动态.

Ori Saporta-Katz1, Avraham Moriel2

  • 1Computer Science and Applied Mathematics Department, Weizmann Institute of Science, Rehovot 7610001, Israel.

Physical review. E
|March 16, 2024
PubMed
概括

机械挫折驱动物理系统的重新安排. 这项研究揭示了它如何控制潜在能量格局,并导致四质系统中的自发,混乱的运动.

科学领域:

  • 物理 物理学 物理
  • 机械工程 机械工程
  • 材料科学 材料科学 材料科学

背景情况:

  • 物理系统经常通过重新安排来缓解机械挫折.
  • 了解这些重新排列是预测系统行为的关键.

研究的目的:

  • 调查机械挫折如何影响潜在的能源景观.
  • 探索哈密尔顿动态和自动驱动的重排之间的关系.
  • 在应力系统中识别混乱运动的前体.

主要方法:

  • 机械丧的理论分析.
  • 使用哈密尔顿动态的数值模拟.
  • 检查四个质量波系统.

主要成果:

  • 机械丧决定了潜在的能源格局.
  • 混乱的运动开始与自我驱动的重新安排有关.
  • 配置动态可以出现自发,缺乏强大的前体.

结论:

  • 机械丧是系统放松的一个关键因素.
  • 汉密尔顿动力学揭示了导致自发重组和混乱的途径.

更多相关视频

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.0K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

4.9K

相关实验视频

Last Updated: Jun 30, 2025

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.3K
Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.0K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

4.9K
  • 预测这些动态需要了解挫折和能量景观的相互作用.