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: : 118 : : 2025 : .., .., .. . // . - 2025. - . 118. - .80-99. : , , , , (.): ring laser, mechanical dither, inclinometric system, systems analysis, computer modeling : . , . , , ANSYS . . . . , , . . (.): The article is devoted to the solution of the urgent problem of increasing vibration resistance of dithered ring lasers with for use in measuring modules of inclinometric systems. The relevance of the work is due to the sensitivity of classical designs of dither mechanism to external mechanical effects, leading to significant measurement errors and failures in the operation of the ring laser in the gyroscopic sensor mode. The study uses a comprehensive approach combining analytical modeling of the system dynamics, numerical analysis by the finite element method in the ANSYS software package and experimental verification on prototypes. The main attention is paid to modal and harmonic analysis to identify and suppress parasitic resonant oscillations in the design of the dither mechanism and ring laser. The key result was the development and successful testing of an optimized four-blade dither mechanism. The new geometry allowed shifting the frequencies of parasitic resonances beyond the operating range while maintaining the stability of useful torsional oscillations of the mechanical dither. It is shown that the design upgrade eliminates output signal loss, ensuring operation of the ring laser under intense vibration impacts without loss of accuracy. The results obtained are of practical value for the development and upgrade of highly reliable inclinometric systems for underground navigation. : 109, : 41, : 19. |