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相关概念视频

PD Controller: Design01:26

PD Controller: Design

256
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
256
PI Controller: Design01:24

PI Controller: Design

313
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
313
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

135
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...
135
PID Controller01:19

PID Controller

123
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
123
Application of Pascal's Law01:03

Application of Pascal's Law

8.5K
Pascal's experimentally proven observations—that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and to the walls of its container—provide the foundations for hydraulics, one of the most important developments in modern mechanical technology.
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system...
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Open and closed-loop control systems01:17

Open and closed-loop control systems

769
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
769

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Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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电液压比例位置和压力负载控制使用状态感知和处理方法.

Jinheng Gu1, Cong Shen1, Cong Zhang1

  • 1School of Mechatronic Engineering, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou, China; Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou, China.

ISA transactions
|October 13, 2023
PubMed
概括
此摘要是机器生成的。

一种新的三轴应力加载装置使用电液式比例控制来进行精确的煤岩测试. 该系统增强了模拟和验证,改善了性能分析和液压机械的智能操作.

关键词:
电液压比例控制器 电液压比例控制器压力和位置联合控制策略压力和位置联合控制策略追踪错误 追踪错误 是一个错误.三轴应力负荷装置的三轴应力负荷装置

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科学领域:

  • 地质技术工程 地质技术工程
  • 机械工程 机械工程
  • 控制系统 控制系统

背景情况:

  • 传统的三轴应力负荷系统往往过度强调静态指数.
  • 现有的模拟和测试验证系统对于性能分析缺乏完整性.
  • 需要先进的设备来准确模拟煤岩的现场应力条件.

研究的目的:

  • 开发一个多功能比例控制三轴应力负荷装置.
  • 为了解决静态指数考虑和模拟完整性的局限性.
  • 提高三轴应力下煤岩的性能分析和测试验证系统.

主要方法:

  • 集成三轴应力负荷系统与电液体比例控制.
  • 实施基于滑动模式的压力和位置联合控制策略,用于液压气.
  • 建立一个共模拟模式,用于系统验证和参数选择.
  • 开发一个用于测试和分析的多功能实验平台.

主要成果:

  • 开发的液压系统在持续负载测试中满足响应特征,波动偏差为8.5%.
  • 可变加载测试显示最小的跟踪误差,即时加载响应时间达到2.8秒.
  • 实验平台验证了系统满足恒定,可变和瞬时负载测试指数的能力.

结论:

  • 拟议的控制策略和装置为液压执行器机器提供了有效的技术支持.
  • 该系统使各种液压机械设备的流,同步控制和智能操作成为可能.
  • 这项研究提高了三轴应力负荷模拟和测试的准确性和可靠性.