Fault diagnosis and prediction system based on distributed water jet propulsion device

Abstract

The embodiment of the invention provides a fault diagnosis and prediction system based on a distributed water jet propulsion device, and the system comprises a mechanical diagnosis and prediction subsystem which is used for collecting, processing and storing a first parameter of a mechanical system of the device, carrying out the feature extraction based on the first operation parameter, and carrying out the health state evaluation and fault diagnosis and prediction; the control diagnosis subsystem is used for collecting, processing and storing a second parameter of a control system of the device, performing feature extraction based on the second parameter, and performing health state evaluation and fault diagnosis; the hydraulic diagnosis subsystem is used for collecting, processing and storing third parameters of a hydraulic system of the device, performing feature extraction based on the third parameters, and performing health state evaluation and fault diagnosis; and the upper computer control subsystem is in communication connection with the three subsystems and is used for performing parameter configuration, data management, device-level comprehensive diagnosis and health state evaluation of the subsystems and displaying real-time data and data processing results.

Description

technical field [0001] The invention relates to the technical field of water jet propulsion, in particular to a distributed-based fault diagnosis and prediction system for water jet propulsion devices. Background technique [0002] Water jet propulsion device is a new type of power propulsion method, which has many advantages such as high speed, high propulsion efficiency, good anti-cavitation performance, superior maneuverability and maneuverability, shallow draft, strong ability to adapt to variable working conditions, etc., and has been widely used in all types of ships. The water jet propulsion device is a large-scale electromechanical hydraulic device with high complexity, involving many fields such as electronics, computer communication, automatic control, hydraulic transmission and mechanical system. The device utilizes the reaction force of the jetted water flow from the propulsion pump to generate thrust, and the steering and control of the ship can be realized by ...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a distributed-based water jet propulsion device fault diagnosis and prediction system that solves the problems of lack of effective state data accumulation, incomplete diagnosis coverage, and lack of trend prediction capabilities in existing ship water jet propulsion devices

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