Reduction of acoustic error float of the differentiating gyro by passive methods

Abstract

The subject of the research is one of simply implemented meth­ods of passive acoustic isolation of two-stage float gyro from effects of penetrating high level acoustic radiation by giving a catenoidal shape to the moving part of suspension. The research is based on solving the problem of optimizing the meridian line of the shell of suspension, which allows to minimize elastic displacements of the float suspension surface in acoustic fields and, thus reduce the value of acoustic errors of differentiating gyro to the level of sensitivity threshold. Numerical analysis of the influence of δ deflection of the shell of float suspension in the midship frame proves the effectiveness of passive methods for correcting the value of acoustic error during flight operations. The results can be used in industry to create inertial means of flight-navigation equipment of aircrafts. They can also find applica­tion in the bench certification of board equipment for functional capacity in the operational mode. Giving the catenoidal shape to the moving part of float suspen­sion of gyro is supported by simplicity of technical realization, effect of reducing the errors of device in acoustic fields of flight operations and prospect of further improvement on the basis of resonance phenomena.