Computer model of the shock absorption system of the transportable quantum hydrogen frequency standard and analysis of the response to impact
https://doi.org/10.26583/vestnik.2025.6.7
EDN: NMRSYN
Abstract
The hydrogen standard currently boasts the highest signal stability and spectral frequency. Transportable hydrogen frequency standards are used for ultra-precise comparisons of remote time and frequency standards in cases where fiber optics or radio communications, such as the GLONASS system, are unavailable. Transportable hydrogen frequency standards may exhibit errors in transmitting the time scale and frequency grid due to external influences, such as vibration, impact, temperature changes, and magnetic fields. Several impact, i.e., short-term impact scenarios, were considered in the study. Damping and shock absorption systems are used for protection, but publications on their effectiveness are currently virtually nonexistent. This article presents the creation of a computer model of a shock-absorbing platform for transporting a hydrogen frequency standard. A comparison of shock-absorbing system models with damping elements made of rubber, silicone, and polyurethane is provided. Natural vibration frequencies were determined for systems with damping elements made of various materials, and their response to impact was examined. Graphs of displacements and accelerations experienced by the transported hydrogen frequency standard were obtained. The system’s response to rocking was examined for various damping coefficients and damping element stiffness coefficients. The dependence of system displacements for different numbers and arrangements of springs was considered. Simulations demonstrated that adding damping blocks at the top and bottom of the shock-absorbing platform for the transported hydrogen frequency standard will improve the system’s resistance to impact.
About the Authors
S. A. Boim
National Research Nuclear University MEPhI;
VNIIFTRI
Russian Federation
Russian Federation
V. I. Vasiliev
VNIIFTRI
Russian Federation
Russian Federation
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For citations:
Boim S.A., Vasiliev V.I. Computer model of the shock absorption system of the transportable quantum hydrogen frequency standard and analysis of the response to impact. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2025;14(6):525-533. (In Russ.) https://doi.org/10.26583/vestnik.2025.6.7. EDN: NMRSYN
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