Calculation method and system for blasting risk of non-contained rotor of aero-engine
An aero-engine, non-inclusive technology, applied in design optimization/simulation, geometric CAD, etc., can solve problems such as low accuracy and low efficiency of manual measurement of risk angles, and achieve the effect of reducing risk probability
Active Publication Date: 2022-08-02
西测翱翔(太仓)航空科技有限公司
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Problems solved by technology
[0005] The main purpose of the present invention is to provide a non-contained rotor explosion risk calculation method and system of an aero-engine to solve the problems of low efficiency and low accuracy of manual measurement of risk angles in the prior art
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[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0027] Before describing the application in detail, some technical terms involved in this document are briefly explained first.
[0028] Risk identification: According to the functional risk analysis of th...
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The present application discloses a non-contained rotor blasting risk calculation method of an aero-engine and a system thereof, wherein the method includes: characterizing the geometric shape of the component to be tested of the aircraft with a discrete lattice, and determining each discrete lattice of the discrete lattice The coordinates of the point; obtain the attribute information of a specific fragment, where the attribute information includes the type of the fragment and the geometric information of the rotor of the engine corresponding to the fragment; calculate the flying risk angle of the component to be tested according to the attribute information of the fragment; The discrete points are projected onto the rotation plane of the rotor, and the coordinates of each projected point are determined; the direction vectors of the two critical sweep trajectory lines corresponding to each projected point are determined, and the The reference vector calculates the translational risk angle of the component to be tested; calculates the probability that the component to be tested is damaged by the rotor burst fragment according to the flying risk angle and the translational risk angle. The present application can improve the efficiency and accuracy of calculating the risk angle.
Description
technical field [0001] The invention relates to a special risk assessment technology for aircraft, in particular to a method and a system for calculating the blasting risk of a non-contained rotor of an aero-engine. Background technique [0002] The so-called non-contained rotor blasting of aero-engine means that when the rotor and its components of aero-turbine engine are impacted by foreign objects or fatigue fracture, the rotor blades, etc. or disc fragments will be thrown out under the action of huge centrifugal force. When the engine casing cannot contain (block) the debris, the high-speed and high-energy debris flying out of the engine or nacelle is likely to damage the key systems or structural components of the aircraft, resulting in loss of pressure in the aircraft cabin, failure of system components, or equipment failure, etc. A variety of risks, serious ones may lead to a catastrophic accident of the aircraft. [0003] Although major engine manufacturers have bee...
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IPC IPC(8): G06F30/15G06F30/20
Inventor 李玉龙赵振强刘鹏刘燕张超邢军
Owner 西测翱翔(太仓)航空科技有限公司