Special process control and verification method for advanced civil turboshaft engines based on airworthiness requirements

By formulating a full-process special process control and verification method, including identification, level division, specification establishment and verification, the problem of insufficient airworthiness compliance verification methods for existing special processes is solved, and the reliability and airworthiness verification of special processes is achieved.

CN119338217BActive Publication Date: 2025-03-25AECC HUNAN AVIATION POWERPLANT RES INST
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Patent Information

Application Number
CN202411889042.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-25
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

The existing airworthiness compliance verification methods for special processes cannot fully meet the airworthiness requirements, and lack the full process special process control and verification process. Inadequate verification makes it difficult to indicate the airworthiness compliance of special processes.

Method used

A method for special process control and verification of advanced civil turboshaft engines based on airworthiness requirements is proposed, including special process identification, grade classification, standardization establishment and verification, trial production evaluation, simulation evaluation and long-term machine testing, etc., to ensure that the special process meets airworthiness requirements.

Benefits of technology

A comprehensive and systematic management and verification method for airworthiness compliance of special processes has been established to ensure the reliability of special processes, reduce verification work, reduce verification costs and shorten verification cycles, and effectively demonstrate the airworthiness compliance of special processes.

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Abstract

The present application discloses a special process control and verification method for advanced civil turboshaft engines based on airworthiness requirements, including the following steps: S1, establishing special process identification criteria to identify special processes for civil turboshaft engines; S2, classifying special processes according to their impact and importance; S3, preliminarily establishing special process specifications, and using simulation parts and process tests to form a pre-approved draft of special process specifications; S4, after forming the pre-approved draft of special process specifications, conducting special process specification verification for trial production evaluation by screening suppliers; S5, after passing the trial production evaluation, conducting different batches and different levels of test verification or whole machine comparison tests for special processes of different levels, and forming a formally approved draft of special process specifications after passing; S6, completing special process identification by conducting long-term whole machine tests and long-term field flight tests on special processes. The present application meets the needs of control and verification of special processes, with low verification costs and reliable results.
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