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Aerospace Instrument-Making Annotation << Back
Problems and principles of acknowledgement of conformity to requirements to reliability and safety of planes control systems |
L.N. Aleksandrovskaja, А.G. Kuznetsov, V.V. Smirnov, E.G. Kim
Requirements to accuracy characteristics of automatic control systems of the movement of the plane are subdivided into two groups. Operational requirements which infringement does not lead to occurrence of special situations in flight are included in the first. They normalize probability Rз = 0,95 … 0,98 findings of characteristics in rather narrow tube of deviations and they are the analogues of requirements to reliability. The second group includes the requirements determining safety of flight. The area of maximum permissible values of parameters of movement of the plane should be maintained with probabilities Rз = 0,9999 … 0,99999999. The quantitative form of the task of requirements means necessity of their confirmation at certification of the flight suitability. Whether it is possible? |
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