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A Helicopter Maintenance Method Based on Two-level Maintenance System

A helicopter and system technology, applied in aircraft maintenance, mechanical bearing testing, instruments, etc., to achieve the effect of improving usability, reducing direct maintenance costs, and increasing mobility

Active Publication Date: 2021-07-23
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of helicopter maintenance method based on two-level maintenance system, to solve at least one problem that existing helicopter maintenance method exists

Method used

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  • A Helicopter Maintenance Method Based on Two-level Maintenance System
  • A Helicopter Maintenance Method Based on Two-level Maintenance System
  • A Helicopter Maintenance Method Based on Two-level Maintenance System

Examples

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specific example

[0050] A specific example of the present invention is as follows:

[0051] Design of helicopter on-board lubricating oil status monitoring system:

[0052]In the past, the lubricating oil samples taken out of the machine at regular intervals were transported to the base lubricating oil analysis laboratory for analysis and transformed into online real-time monitoring, so as to realize the condition-based maintenance method. That is, by monitoring the use status of the lubricating oil on the aircraft, it is determined whether the contamination of the lubricating oil system is approaching its service life, which eliminates the time for sending the lubricating oil sample for inspection and the subsequent cleaning and replacement of the lubricating oil, which not only improves the use of the helicopter availability, and reduced maintenance support time and costs.

[0053] This online monitoring system is also composed of a status indicator and a lubricating oil status detection an...

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Abstract

The invention relates to the technical field of maintenance support, in particular to a helicopter maintenance method based on a two-level maintenance system. The following steps are as follows: determine the product based on the condition maintenance mode; determine the typical failure mode or failure characteristic that characterizes the product; determine the typical failure characteristic parameters of the product , to establish the health benchmark of typical fault state; verify the typical fault and health criterion determined in the third step through experiments; design the state indicator circuit according to the determined typical fault and health criterion; use the state indicator circuit to Real-time monitoring of product status changes to determine potential product failure points. The helicopter maintenance method based on the two-level maintenance system of the present invention can ensure the reliability and safety of helicopter flight, and can realize reasonable spare parts storage, so as to ensure that the fleet will not cause the dilemma of excess spare parts or lack of spare parts, thereby greatly improving Helicopter availability reduces direct maintenance costs.

Description

technical field [0001] The invention relates to the technical field of maintenance support, in particular to a helicopter maintenance method based on a two-level maintenance system. Background technique [0002] At present, in the field of domestic helicopters, a three-level maintenance system is adopted, namely, grassroots level, intermediate level and base level. These three levels of maintenance are all time-based preventive maintenance methods. As early as the 1980s, when the U.S. Army developed the LHX (RAH-66 Comanche) armed / reconnaissance helicopter, it proposed a two-level maintenance plan, and proposed in 2003 including Army logistics automation, condition-based maintenance, and two-level maintenance Priority change activities such as tool modularization require that helicopters in service after 2015 implement condition-based maintenance and two-tier maintenance systems. [0003] At present, the country is also requiring newly developed / modified helicopters to carr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/40G01N21/3577G01M13/04
CPCB64F5/40G01M13/04G01N21/3577
Inventor 辛冀陈圣斌刘松宇
Owner CHINA HELICOPTER RES & DEV INST
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