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

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

102
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
102
Response Surface Methodology01:16

Response Surface Methodology

269
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
269
Internal Combustion Engine01:20

Internal Combustion Engine

1.8K
The internal combustion engine is a heat engine that uses the byproducts of combustion as the working fluid instead of using a heat transfer medium to transfer heat. The combustion is done in a way that produces high-pressure combustion products that can be expanded through a turbine or piston to create work. Internal combustion engines can again be categorized into three kinds: (1) spark ignition gasoline engines, most commonly used in automobiles, (2) compression ignition diesel engines that...
1.8K
Otto and Diesel Cycle01:27

Otto and Diesel Cycle

2.1K
An Otto engine is a four-stroke engine that uses a mixture of gasoline and air as the working fuel. The fuel is injected into the cylinder, and the piston is moved completely down so that the cylinder is at maximum volume. By moving the piston up, adiabatic compression takes place. The spark plug ignites the gasoline-air mixture, and the burning fuel adds heat to the system at a constant volume. The heated mixture expands adiabatically and gets further cooled by exhausting heat, and this cyclic...
2.1K
Bearings: Problem Solving01:24

Bearings: Problem Solving

329
Understanding the calculations and concepts related to double-collar bearings is essential for engineers and designers to optimize the performance of these components in various applications. By analyzing the bearing under different conditions, one can ensure that it can withstand the forces and moments experienced during operation. This knowledge enables better decision-making when designing and selecting bearings for specific purposes and configurations. Consider a double-collar bearing with...
329
Mechanistic Models: Compartment Models in Individual and Population Analysis01:23

Mechanistic Models: Compartment Models in Individual and Population Analysis

87
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
87

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

Near-Infrared Light Triggered Upconversion Optogenetic Nanosystem for Cancer Therapy.

ACS nano·2017
Same author

Non-contact method to freely control the radiation patterns of antenna with multi-folded transformation optics.

Scientific reports·2017
Same author

Cost Effectiveness of Imatinib, Dasatinib, and Nilotinib as First-Line Treatment for Chronic-Phase Chronic Myeloid Leukemia in China.

Clinical drug investigation·2017
Same author

Improving Performance of Breast Cancer Risk Prediction by Incorporating Optical Density Image Feature Analysis: An Assessment.

Academic radiology·2017
Same author

Preliminary study on ultrasound-guided prostate biopsy specimen scores.

Experimental and therapeutic medicine·2017
Same author

Characterization of Continuous and Pulsed Emission modes of a Hybrid Micro Focus X-ray Source for Medical Imaging Applications.

Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment·2017
Same journal

Correction: Yang et al. Microstructural Characteristics of High-Pressure Die Casting with High Strength-Ductility Synergy Properties: A Review. <i>Materials</i> 2023, <i>16</i>, 1954.

Materials (Basel, Switzerland)·2026
Same journal

Effect of La and Ce Microalloying on the Corrosion Resistance of 0.4Sb Low-Alloy Steel in a Harsh Marine Atmospheric Environment.

Materials (Basel, Switzerland)·2026
Same journal

High-Temperature Properties of Magnesium Ammonium Phosphate Cement Modified with Gold Tailings.

Materials (Basel, Switzerland)·2026
Same journal

A Study on the Evolution of Intermetallic Phase Microstructure and High-Temperature Creep Behavior in Mg-8.0Al-1.0Nd-1.5Gd-Mn Alloys.

Materials (Basel, Switzerland)·2026
Same journal

Material-Driven Clinical Complications in Mechanical Circulatory Support: From Blood-Material Interactions to Device-Related Adverse Events.

Materials (Basel, Switzerland)·2026
Same journal

Influence of Final Irrigation on Calcium Silicate-Based Sealer Dentinal Tubular Penetration: A Systematic Review.

Materials (Basel, Switzerland)·2026
查看所有相关文章

相关实验视频

Updated: Sep 16, 2025

A Rapid Method for Modeling a Variable Cycle Engine
04:58

A Rapid Method for Modeling a Variable Cycle Engine

Published on: August 13, 2019

7.7K

基于多方法合的发动机活塞性能优化:灵敏度分析,响应表面模型和遗传算法的应用.

Bin Zheng1, Qintao Shui1, Zhecheng Luo1

  • 1School of Intelligent Manufacturing, Panzhihua University, Panzhihua 617000, China.

Materials (Basel, Switzerland)
|July 12, 2025
PubMed
概括
此摘要是机器生成的。

先进的优化策略通过增强刚性,强度和动态特性来提高发动机活塞性能. 这导致工作温度降低和自然频率增加,延长组件寿命和提高热效率.

关键词:
这是一个ANOVA.协调响应分析 协调响应分析模式分析 模式分析优化设计的优化设计.这是一个活塞活塞.响应表面分析 响应表面分析热力机械合分析

更多相关视频

Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

1.2K
Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.7K

相关实验视频

Last Updated: Sep 16, 2025

A Rapid Method for Modeling a Variable Cycle Engine
04:58

A Rapid Method for Modeling a Variable Cycle Engine

Published on: August 13, 2019

7.7K
Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

1.2K
Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.7K

科学领域:

  • 机械工程 机械工程
  • 材料科学 材料科学 材料科学
  • 计算工程 计算工程

背景情况:

  • 发动机活塞是影响发动机效率和可靠性的关键部件.
  • 结构设计和优化对于提高活塞性能和使用寿命至关重要.
  • 现有的设计在操作压力下可能面临刚性,强度和动态特性方面的限制.

研究的目的:

  • 通过先进的优化设计策略,增强发动机活塞的刚性,强度和动态特性.
  • 为了提高发动机活塞的整体性能,效率和使用寿命.
  • 研究设计变量对复杂工作条件下的活塞性能的影响.

主要方法:

  • 使用ANSYS Workbench构建一个3D活塞模型和有限元分析.
  • 热力学合分析以模拟在操作条件下的热和变形状态.
  • 动态特征分析以确定位移频率曲线并预测共振行为.
  • 响应表面方法 (RSM) 和实验设计 (DOE) 用于建模和评估优化目标.
  • 灵敏度分析以确定关键设计变量.
  • 多目标遗传算法 (MOGA) 进行全面优化.

主要成果:

  • 经过优化的活塞设计,工作温度从312.75°C降至308.07°C.
  • 自然频率增加:首先从1651.60赫兹增加到1671.80赫兹,第二从1656.70赫兹增加到1665.70赫兹,第三从1752.90赫兹增加到1776.50赫兹.
  • 活塞质量和变形在优化后保持相对稳定.
  • 响应表面模型显示出高度的意义和预测准确性.
  • 灵敏度分析确定了影响性能的关键几何维度.

结论:

  • 先进的优化技术,集成RSM和MOGA,成功地提高了发动机活塞性能.
  • 优化的设计增强了动态稳定性,抗振动性和热效率,有助于延长组件寿命.
  • 该研究为关键发动机组件的多目标优化提供了一个强大的框架.