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相关概念视频

Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

41
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
41
Cable: Problem Solving01:29

Cable: Problem Solving

313
When dealing with a cable that is fixed to two supports and subjected to uniform loading, it is crucial to determine the maximum tension in the cable. This process can be broken down into several key steps, as outlined below:
313
Cable Subjected to a Distributed Load01:24

Cable Subjected to a Distributed Load

642
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
642
Cable Subjected to Concentrated Loads01:28

Cable Subjected to Concentrated Loads

797
Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
797
Cable Subjected to Its Own Weight01:13

Cable Subjected to Its Own Weight

428
Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
428
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

40
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
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相关实验视频

Updated: Jun 6, 2025

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
11:53

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在智能林业中,对电缆路布局的多目标优化.

Carl O Retzlaff1, Christoph Gollob1, Arne Nothdurft2

  • 1Human-Centered AI Lab, Institute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Austria.

International journal of forest engineering
|November 25, 2024
PubMed
概括

本研究介绍了在的地形中设计有线路布局的多目标优化,提高成本效益,平衡经济和环境因素,以便更好地规划木材采伐.

关键词:
非线性优化非线性优化电缆线路铺设 线路铺设布局 布局 布局 布局智能林业是什么意思 智能林业是什么意思采伐木材的采伐,也就是砍伐木材的采伐.

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相关实验视频

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科学领域:

  • 林业工程 林业工程
  • 运营研究 运营研究

背景情况:

  • 目前用于地采伐木材的电缆路设计方法依赖于手动规划或低分辨率的GIS数据.
  • 这限制了知情决策和收获操作的优化.

研究的目的:

  • 开发和评估一种新的线缆路设计方法,使用具有现实的表示的多目标优化.
  • 为了比较单一目标和多目标优化方法,以生成有效的电缆路布局.

主要方法:

  • 实施和评估重量化单一目标,AUGMECON2和NSGA-II多目标优化方法.
  • 适应了AUGMECON2的线性编程多目标优化与现实的电缆道路表示.
  • 应用了一种多目标遗传算法 (NSGA-II) 模拟化用于电缆道路设计.

主要成果:

  • 与手动或单一目标方法相比,多目标优化产生了更具成本效益,平衡和适应性的缆车路布局.
  • 该研究表明,经济 (安装成本,收获量) 和环境 (剩余支架损坏,侧面造地工作负载) 考虑因素的成功整合.
  • AUGMECON2和NSGA-II在优化现实的电缆公路表示方面表现出明显的优势.

结论:

  • 多目标优化显著提高了电缆路设计,用于在地形中采伐木材.
  • 这种方法通过平衡多个经济和环境目标来促进知情决策.
  • 开发的方法为森林作业规划提供了更有效和可持续的解决方案.