| 摘要 |
FIELD: testing equipment.SUBSTANCE: on the basis of using the methodology of previous detection of total traction of a propulsion device (PD) according to the results of the flight tests (FT) of the aircraft (AC) they determine aerodynamic coefficients Cand C. This is achieved by building a system of measurements and processing of their results, which makes it possible to separate the force of traction and aerodynamic force according to the "physical" principle and organise the iteration process of measurement results processing. For this purpose in process of flight they measure overloads nand nto connected axes oxand oy. Using the specified aerodynamic coefficients Cand Cthey calculate the continuously changing angle of inclination of the auxiliary axis, in direction of which the AC is exposed to overload only from the traction force provided that the projection of the vector of total aerodynamic force is equal to zero. Using the measured values of the overload nand nto connected axes oxand oythey calculate the overload value, which depends only on the PD traction force. The aerodynamic components of the overload are corrected due to the iteration process according to the overload with account of the confirmed values of sought for values P, C, C.EFFECT: increased accuracy of detection of total traction of a PD and aerodynamic coefficients Cand C.3 dwg |
