ハイドロリック・ボルテックス・レート・ジャイロの研究

抄録

This paper presents the dynamic performance characteristics of a hydraulic vortex rate gyro using aviation oil and the design guide considering both the static sensitivity and the dynamic characteristics.
The dynamic characteristics of the hydraulic vortex rate gyro consist of the time lag when the signal flow arrives at the probe tube and of the time delay when it takes to produce the stable vortex flow in the vortex chamber. The time delay was analyzed by estimating that the tangential velocity of the fluid entering into the vortex chamber was reduced by the inertia force of fluid which had been located in the chamber, and it was expressed with the first order delay system.
The experiment was conducted by varing the factors affecting the dynamic characteristicsvortex chamber dimensions, angular velocity etc. -and the output responses of H.V.R. gyro to the step input of angular velocity were measured. And then, the empirical formula of the coefficient of the time constant was obtained by analyzing the step responses of hydraulic vortex rate gyro, and it was confirmed that the experimental time lags agreed very well with theoretical ones reflecting displacement thickness in the chamber.