Abstract
A possibility of monitoring a current state of transmission shafts on the basis of an adaptive system with a reference model is considered. Using a gas-turbine engine as an example, a problem is solved for the estimation of a torsion angle of the shaft that transmits the torque of a free turbine through the reduction gear to the propeller in the condition of a finite value of the torsion stiffness of the shaft. The torsion angle specifies the current state of the shaft and can be used for the advanced disengagement of the engine in the event of the breakup of the transmission. It is shown that the suggested adaptive system of estimating the torsion angle of the shaft ensures a high dynamic accuracy in the stationary and nonstationary modes of operation of the engine. The mathematical modeling confirmed the serviceability of the system under conditions that are close to actual ones, in particular, under the action of random noise of the measurement.
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Glumov, V.M., Zemlyakov, S.D., Rutkovskii, V.Y. et al. Application of the Principle of Design of Adaptive Systems with a Reference Model to Problems of Monitoring of a Current State of Transmission Shafts. Automation and Remote Control 64, 791–805 (2003). https://doi.org/10.1023/A:1023619006729
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DOI: https://doi.org/10.1023/A:1023619006729