相关实验视频

Updated: Feb 20, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

2.2K

DSMDTN:一个数据选择性的多级双传输网络,用于旋转机械关键部件的故障诊断

Xianfeng Li, Jiantao Shi, Chuang Chen

    IEEE transactions on cybernetics
    |February 18, 2026
    PubMed
    概括

    一个新的数据选择性多级双传输网络 (DSMDTN) 改善了滚动轴承故障诊断. 这种方法提高了诊断准确度和跨不同工作条件和噪音环境的传输能力.

    更多相关视频

    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump09:04

    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

    Published on: June 1, 2022

    3.7K
    Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators08:59

    Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators

    Published on: June 13, 2022

    3.0K

    相关概念视频

    Multimachine Stability01:25

    Multimachine Stability

    Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
    In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
    587
    Three-Phase Short Circuit—Unloaded Synchronous Machine01:21

    Three-Phase Short Circuit—Unloaded Synchronous Machine

    Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
    This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
    741
    Node Analysis for AC Circuits01:14

    Node Analysis for AC Circuits

    Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
    To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
    695
    Differential Relays01:20

    Differential Relays

    Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
    811
    Power System Three-Phase Short Circuits01:21

    Power System Three-Phase Short Circuits

    Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
    585
    Directional Relays01:25

    Directional Relays

    Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
    629