Aircraft attitude control ground simulation system effectiveness analysis method

Aircraft attitude control ground simulation system effectiveness analysis method

  • CN 105,205,252 A
  • Filed: 09/11/2015
  • Published: 12/30/2015
  • Est. Priority Date: 09/11/2015
  • Status: Active Application
First Claim
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1. an aircraft manufacturing technology ground artificial system analytical method, is characterized in that, step is:

  • Step one;

    determine similar finite element weight coefficientAccording to aircraft manufacturing technology principle, the significance level of four selected similar finite elements is from heavily to being gently followed successively by;

    stabilization time, overshoot, rise time, time to peak, affect proportion and weaken successively, thus judgment matrix P;

    By above-mentioned judgment matrix P, obtain eigenvalue of maximum λ

    maxwith coincident indicator CI, and check in RI by Aver-age Random Consistency Index table, so calculate coincident indicator CR according to formula CR=CI/RI, if CR <

    1, then judgment matrix has consistance;

    Judgment matrix being normalized by row, and each row element of the normalized judgment matrix of row is added, being then normalized being added the column vector obtained;

    Step 2;

    the value determining similar finite elementUtilize reality in-orbit aircraft flight data obtain the actual value of each similar finite element, then tested by full physical simulation, obtain the unit-step nsponse curve of each degree of freedom of analogue system and the simulation value of each similar finite element;

    Step 3;

    the similarity of computer sim-ulation system in each degree of freedom;

    Step 4;

    the confidence level of whole analogue system is determined in weighted sum.

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