Мельник В.Н., Карачун В.В. «Возникновение резонанса в акустической среде подвеса поплавкового гироскопа» Восточно-Европейский журнал передовых технологий, 1, № 7, с. 39-44 (2016)

Раскрыта природа проявления резонансных явлений в подвесе поплавкового двухстепенного гироскопа в звуковых полях гиперзвукового полета, основанная на критическом изменении звукопроницаемости корпуса прибора. Очерчены условия формирования в подвесе волнового совпадения на высоких и низких частотах и установлена степень влияния симметричного и антисимметричного. Доказана эффективность борьбы с резонансом также резонансными методами. The formation nature of resonance phenomena, which give rise to the rapid growth of the gyro errors in hypersonic flight conditions in the suspension of a two-stage float gyroscope is revealed. On the example of the industrial design of the float gyroscope, computational models are built. They allowed determining the influence of the antisymmetric and symmetric impedance of the housing on the emergence of resonance conditions in the suspension. The influence of the propagation direction of acoustic radiation on the occurrence of the features, leading to the rapid growth of additional autonomous positioning errors is determined. The resonance content at high (above the cutoff) and low (below the cutoff) frequencies is revealed. It is shown that at high frequencies the resonance is formed by only bending vibration of the housing in the sound field provided that the antisymmetric impedance is much lower than the symmetrical impedance. It is found that the low-frequency resonance can be formed only by the circumferential vibration of the housing depending on the sound wave incidence angles. It appears in the form of the wave coincidence of the trace of the incident and circumferential waves, or coincidence of the circumference of the frame and the circumferential wave on the plane of the incident wave front. The resonance methods of dealing with the influence of the sound fields as the only effective ones in the resonance conditions of hypersonic flight are analyzed.