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相关概念视频

Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

66
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
66
Feedback control systems01:26

Feedback control systems

252
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
252
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

590
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
590
Conservation of Mass in Fixed, Nondeforming Control Volume01:07

Conservation of Mass in Fixed, Nondeforming Control Volume

739
The principle of conservation of mass is fundamental in fluid dynamics and is crucial for analyzing flow within fixed control volumes, such as pipes or ducts. This principle states that the total mass within a control volume remains constant unless altered by the inflow or outflow of mass through the control surfaces. This results in a vital relationship for steady, incompressible flow where the mass entering a system equals the mass leaving it.
In the case of a sewer pipe, which can be modeled...
739
Conservation of Mass in Moving, Nondeforming Control Volume01:14

Conservation of Mass in Moving, Nondeforming Control Volume

653
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
653
Conservation of Mass in Finite Cotrol Volume01:16

Conservation of Mass in Finite Cotrol Volume

815
The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
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固定时间弹性分布式NE寻求对非线性MAS进行控制,以防止DoS攻击.

Shihan Zhou, Chao Deng, Sha Fan

    IEEE transactions on cybernetics
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    概括
    此摘要是机器生成的。

    本研究介绍了非线性多代理系统的分层控制策略,以在拒绝服务 (DoS) 攻击下实现弹性分布式纳什平衡 (NE),确保独立于初始条件的固定时间收.

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    科学领域:

    • 控制理论 控制理论
    • 游戏理论 游戏理论
    • 网络化系统 网络化系统

    背景情况:

    • 非线性多代理系统 (MAS) 面临着在拒绝服务 (DoS) 攻击下实现分布式纳什平衡 (NE) 的挑战.
    • 现有的NE寻找方法往往缺乏对DoS攻击的弹性和固定时间的融合保证.
    • 解决初始条件依赖对于MAS的强有力的控制至关重要.

    研究的目的:

    • 为非线性MAS开发一个分层的固定时间弹性分布式NE控制策略,以应对DoS攻击.
    • 确保独立于初始系统状态的 NE 融合.
    • 为了提高控制性能,并在固定的时间内实现有界的跟踪.

    主要方法:

    • 一个新的分层NE控制策略,包括三个层:弹性固定时间NE寻找,固定时间性能增强和自适应控制器设计.
    • 设计一个固定的时间弹性分布式NE寻找算法,以确保在DoS攻击中实现NE的融合.
    • 开发高级固定时间过器,以产生平稳的动作,以及使用后退来进行边界跟踪的分散模糊自适应控制器.

    主要成果:

    • 拟议的策略保证了玩家的行动在固定的时间内汇聚到纳什平衡 (NE),即使在DoS攻击下.
    • 创新的高级固定时间过器确保了流的动作特征和对算法生成的动作的趋同.
    • 一个分散的模糊自适应控制器在固定的时间内实现了有界的跟踪,通过数值模拟进行验证.

    结论:

    • 开发的分层固定时间弹性分布式NE控制策略有效地解决了非线性MAS的DoS攻击.
    • 该方法确保了独立于初始条件的固定时间趋同到NE,增强了系统的弹性.
    • 数字模拟证实了在MAS中强大的控制和跟踪所提出的方法的有效性.