Incompatible failure safety analysis system and method for air plane motor

Abstract

The invention discloses an incompatible failure safety analysis system and method for an airplane motor, and belongs to the technical field of special risk analysis and evaluation of an airplane. The incompatible failure safety analysis system of the airplane motor comprises a demand information processing module, a parameter setting module, and an analog simulation and result output module. The incompatible failure safety analysis method for the airplane motor comprises the following steps: determining position parameters and size parameters of fragments of an airplane motor rotor relative to a digital mock-up of the airplane; detecting airplane models which have a possibility of having failures caused by the fragments of the airplane motor rotor with a region division and hierarchical bounding bolumes within a failure fragment reachable region, and distinguishing Catastrophic function risks and rationally providing analysis results of the incompatible failure safety of the rotors by carrying out the Boolean operation on a simulation result matrix and minimum cut sets. The incompatible failure safety analysis system and method disclosed by the invention can rapidly and accurately distinguish the potential risks of the incompatible failures of the rotor in an airplane design section, and provides the technical support for the safety design and the configuration design of an airplane system.

Description

technical field [0001] The invention discloses an aircraft engine non-containment failure safety analysis system and method, and belongs to the technical field of aircraft special risk analysis and evaluation. Background technique [0002] When the engine is running at high speed, the failure state that the fragments falling off from the rotor cannot be contained and separate from the engine rotor and penetrate the engine case is the non-containment failure of the engine rotor. Uncontained rotor failure is one of the typical special risks that threaten the safety of aircraft use. Uncontained fragments of the rotor may penetrate the aircraft fuselage, wings, and fuel tanks, and damage the aircraft's pipelines, lines, etc., causing cabin depressurization, fuel leakage, system component failure, and control failure, which may lead to disasters occurrence of sexual accidents. Therefore, the analysis of the uncontained failure safety of aircraft engine rotors is particularly im...

AI Technical Summary

Problems solved by technology

Domestic rotor non-containment failure safety analysis and evaluation still remain at the empirical estimation level. For high-altitude integrated and complex systems such as aircraft, it will cause the combined risk of missing multiple systems to fail at the same time. At the same time, due to the difficulty of analysis and evaluation and the work The amount is very large, resulting in low analysis and evaluation efficiency, high cost, and long cycle. It cannot be implemented in actual engineering models and has no engineering practicability.

Images