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

Application of Linearization and Approximation01:29

Application of Linearization and Approximation

90
A drone flying through complex terrain often relies on more than one sensing method to estimate small changes in altitude. Along with direct measurements, air pressure provides a useful indirect indicator of vertical movement. Atmospheric pressure decreases as altitude increases, and this relationship is commonly described using an exponential model. Although accurate, converting pressure measurements into altitude values requires calculations that are too complex to perform repeatedly during...
90
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

1.3K
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
1.3K
Application of the Linear Momentum Equation01:15

Application of the Linear Momentum Equation

426
The application of the linear momentum equation can be used to analyze the forces needed to hold a 180-degree pipe bend in place with flowing water. In this case, water flows through the bend with a constant cross-sectional area of 0.01 square meters and a flow velocity of 15 meters per second. The pressure at the entrance is 0.2 Megapascals and the pressure at the exit is 0.16 Megapascals.
The goal is to determine the force components in the x and y directions to hold the pipe in place. Since...
426
Application of Antiderivatives: Linear Motion01:26

Application of Antiderivatives: Linear Motion

59
A derivative describes how one quantity changes with respect to another, such as how velocity changes over time. The reverse process, which recovers a quantity from its rate of change, is known as integration. In physics, integration is fundamental because it links related physical quantities, allowing acceleration, velocity, and displacement to be understood as connected aspects of motion.Consider a car traveling at a steady speed of 20 meters per second when an obstacle appears 800 meters...
59
Overview of Microsoft Excel as a Data Analysis Tool01:13

Overview of Microsoft Excel as a Data Analysis Tool

1.6K
Microsoft Excel is a cornerstone tool for data analysis and statistical operations, offering a wide array of functionalities to manage, analyze, and visualize data efficiently. Recognized for its versatility, Excel facilitates the performance of basic to complex statistical operations, serving as an indispensable asset for analysts, researchers, and students alike. Excel's significance in data analysis emanates from its spreadsheet environment, where data can be organized in rows and...
1.6K
Machines01:19

Machines

577
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
577

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

Comparisons of phantom-based and phantomless QCT bone mineral density for predicting subsequent fractures.

Bone & joint research·2026
Same author

Reference values and cut-points for trunk myopenia and myosteatosis in Chinese adults: a secondary analysis of the China Action on Spine and Hip study.

Quantitative imaging in medicine and surgery·2026
Same author

Heterogeneous Composite Design and 3D Printing Parameter Optimization of Al<sub>2</sub>O<sub>3</sub> Ceramic Triply Periodic Minimal Surface Structures.

ACS materials Au·2026
Same author

Tissue-specific body composition changes and muscle performance decline: a 5-year prospective study.

Aging clinical and experimental research·2026
Same author

An evaluation of dual-layer detector spectral CT for the estimation of MRI proton density fat fraction of the liver.

Quantitative imaging in medicine and surgery·2026
Same author

Macrophage-Specific Loss of Stearoyl-CoA Desaturase 1 Promotes Colon Cancer by Enhancing M2 TAM Polarization.

Cancer science·2026

相关实验视频

Updated: Jan 31, 2026

Orienteering as a Tool for Cognitive Research: An Implementation Guide
07:13

Orienteering as a Tool for Cognitive Research: An Implementation Guide

Published on: November 29, 2024

1.5K

机床精密线性料机制的面向应用的分类和性能分析.

Jinglei Zhou1, Hanwen Yu1, Mingxuan He1

  • 1School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, People's Republic of China.

Science progress
|January 29, 2026
PubMed
概括

本研究引入了一个系统的框架来分类精密机床的线性料机制. 它指导工程师根据精度,刚度和负载能力选择最佳机制,以改进加工系统设计.

关键词:
审查 审查 审查 审查直接驱动技术的直接驱动技术可展示的机构可展示的机构线性料机制的线性料机制精密传输传输的精确度

更多相关视频

A Web Tool for Generating High Quality Machine-readable Biological Pathways
08:01

A Web Tool for Generating High Quality Machine-readable Biological Pathways

Published on: February 8, 2017

18.5K
Culture of Bladder Cancer Organoids as Precision Medicine Tools
08:39

Culture of Bladder Cancer Organoids as Precision Medicine Tools

Published on: December 28, 2021

5.4K

相关实验视频

Last Updated: Jan 31, 2026

Orienteering as a Tool for Cognitive Research: An Implementation Guide
07:13

Orienteering as a Tool for Cognitive Research: An Implementation Guide

Published on: November 29, 2024

1.5K
A Web Tool for Generating High Quality Machine-readable Biological Pathways
08:01

A Web Tool for Generating High Quality Machine-readable Biological Pathways

Published on: February 8, 2017

18.5K
Culture of Bladder Cancer Organoids as Precision Medicine Tools
08:39

Culture of Bladder Cancer Organoids as Precision Medicine Tools

Published on: December 28, 2021

5.4K

科学领域:

  • 机械工程 机械工程
  • 制造业 制造技术 制造技术
  • 精密工程 精密工程是指精密的工程.

背景情况:

  • 精密机床中线性料机制的选择缺乏系统的框架,导致性能与应用要求不匹配.
  • 这种不匹配阻碍了高性能加工系统在精度,刚度和负载能力方面的优化.

研究的目的:

  • 建立线性料机制的系统分类系统.
  • 定义现有技术的量化性能边界.
  • 为指导最佳机制的选择和准确运动系统的未来创新.

主要方法:

  • 开发了一个结构化的分类系统,将机制分为四种类型:典型的线性驱动,线性链接,高精度料和新型线性机制.
  • 基于定位准确度,结构刚度和承载能力的工作原理的分析.
  • 对性能边界的量化和每个类别的应用程序的识别.

主要成果:

  • 典型的线性料机制被广泛使用,但其准确性较低.
  • 线性链接机制提供结构上的好处,但可能缺乏高精度.
  • 高精度的料机制实现了微米级的精度,适用于苛刻的应用.
  • 新型线性机制代表了技术发展的未来方向.

结论:

  • 开发的以绩效为导向的分类框架有效地解决了精密线性料机制的选择挑战.
  • 该研究为工程师提供了系统的性能谱和决策工具.
  • 它阐明了精密运动系统未来创新的途径.