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Fuel regulator system storage life evaluation quantile self-consistent model method

A technology of fuel regulator and storage life, which is applied in the direction of instruments, special data processing applications, electrical digital data processing, etc., and can solve the problems of large data dispersion and non-independent components

Active Publication Date: 2018-08-28
BEIHANG UNIV
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Problems solved by technology

[0010] (1) Purpose of the present invention: In view of problems such as large data dispersion and non-independence between components in the storage life evaluation process of the aero-engine fuel regulator system, make full use of the storage reliability information of each component, and provide a fuel The quantile point self-consistent model method for evaluating the storage life of the regulator system improves the accuracy of the storage life evaluation of the fuel regulator system and provides a theoretical basis for maintenance decisions

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  • Fuel regulator system storage life evaluation quantile self-consistent model method
  • Fuel regulator system storage life evaluation quantile self-consistent model method
  • Fuel regulator system storage life evaluation quantile self-consistent model method

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Embodiment Construction

[0063] The present invention will be described in detail below in conjunction with examples.

[0064] In order to evaluate the storage life of a certain type of turbofan engine fuel regulator system, it is first necessary to evaluate the storage life of two typical weak components, the fuel servo valve and the compression spring, based on the test data, and then use the quantile point self-consistent model to evaluate the storage life of the system Comprehensive Evaluation.

[0065] The quantile point self-consistent model method for evaluating the storage life of a fuel regulator system according to the present invention, see figure 1 As shown, it is mainly realized through the following steps:

[0066] Step 1: Fuel servo valve performance degradation modeling and storage life assessment

[0067] Table 1 shows the performance degradation data of the fuel servo valve, that is, the fuel output flow difference of the fuel servo valve under different storage times.

[0068] Ta...

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Abstract

The invention provides a fuel regulator system storage life evaluation quantile self-consistent model method. Under three supposed conditions, the fuel regulator system storage life evaluation quantile self-consistent model method is implemented through the steps of I, fuel servo valve performance degradation modelling and storage life evaluation, II, pressure spring performance degradation modelling and storage life evaluation, III, fuel regulator system storage life evaluation, IV, fuel regulation system storage reliability assessment. Therefore, the fuel regulator system storage life evaluation quantile self-consistent model method performs performance degradation modelling and storage life analysis on the two typical vulnerable spots of a fuel regulator system, namely, a fuel servo valve and a pressure spring, and on the basis, takes into consideration relevance of elements and performs evaluation on the storage life and storage reliability of the fuel regulator system through a quantile self-consistent model, thereby achieving the effects of comprehensively utilizing element degradation information and accurately evaluating the storage life of the fuel regulator system, and solving the problems of large data dispersion, low evaluation precision and the like during practical evaluation processes of the fuel regulator systems.

Description

technical field [0001] In an aero-engine, a fuel regulator is a mechanism that regulates the fuel supply to reasonably work with the engine. Its internal structure is complex and consists of multiple components. During the storage process, affected by the environment such as temperature and humidity, the fuel servo valve and compression spring inside the fuel regulator are prone to performance degradation, which has a significant impact on the storage life of the fuel regulator. Therefore, to evaluate the storage life of the aero-engine fuel regulator system, it is necessary to synthesize the performance degradation information of two typical weak components, the fuel servo valve and the compression spring. The present invention is a method for evaluating the storage life of a fuel regulator system considering the correlation between components. Based on the storage reliability information of each component, the quantile point self-consistent model is used to give the storage ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 马小兵范洪敏王晗马同玲张朝先郭海丽
Owner BEIHANG UNIV
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