MATHEMATICAL MODEL OF THE INERTIA SWITCH
- Authors: Kitaev V.N.1, Afanasyev R.L.1, Petrov M.V.1
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Affiliations:
- Russian Federal Nuclear Center – Zababakhin All-Russian Research Institute of Technical Physics
- Issue: No 2 (2025)
- Pages: 71-79
- Section: DESIGN AND TECHNOLOGY OF INSTRUMENTATION AND ELECTRONIC EQUIPMENT
- URL: https://journals.rcsi.science/2307-4205/article/view/294737
- DOI: https://doi.org/10.21685/2307-4205-2025-2-8
- ID: 294737
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Abstract
Background. The inertia switches are traditionally used in mobile vehicles for commutating the electric circuits of the engineering systems. Triggering of such devices takes place mainly when having taken integral along linear acceleration while the vehicle’s space motion. To integrate the linear acceleration, both magnetic induction and hydraulic dampers are customary used. In a number of cases the hydraulic dampers, simplifying design of inertia switchers, are preferred. Given work presents the results of development of the inertia switch design, its mathematical model: differential equations, describing motion of mobile design elements, and the initial motion conditions, as well. For differential equating as follows assumptions are taken: the liquid is incompressible; no account to inertia switch components variation in dimension due to environmental variation in temperature; no account to dumping liquid viscosity variation due to environmental temperature variation. Materials and methods. The major feature of inertiaswitch designed to distinguish it from similar inertia devices is its feasible actuation at acceleration along either of the two axial directions. The contact system switches from the initial state at releasing and following turning of the jumper strap. Design of the inertia switch enables reliable retention of the initial state of a contact system at any operation conditions of the mobile vehicles as well as fail-safe switching while vehicle motion during specified period of time (speedup, braking) with acceleration of no less than certain (specified) value. Presented results demonstrate possibility of development of the reliable and technologically effective inertia switch, designed for engineering systems of the independent mobile vehicles.
About the authors
Vladimir N. Kitaev
Russian Federal Nuclear Center – Zababakhin All-Russian Research Institute of Technical Physics
Author for correspondence.
Email: kb@vniitf.ru
Head of the design department
(13 Vasilyeva street, Snezhinsk, Russia)Roman L. Afanasyev
Russian Federal Nuclear Center – Zababakhin All-Russian Research Institute of Technical Physics
Email: kb2@vniitf.ru
Deputy head of department
(13 Vasilyeva street, Snezhinsk, Russia)Maksim V. Petrov
Russian Federal Nuclear Center – Zababakhin All-Russian Research Institute of Technical Physics
Email: kb2@vniitf.ru
Engineer
(13 Vasilyeva street, Snezhinsk, Russia)References
- Kitaev V.N., Afanas'ev R.L., Petrov M.V. Inertial switch with hydraulic damping of an inertial body. Nadezhnost' i kachestvo slozhnykh system = Reliability and quality of complex systems. 2024;(1):88–97. (In Russ.). doi: 10.21685/2307-4205-2024-1-10
- Kitaev V.N., Afanas'ev R.L., Petrov M.V. Mathematical model of a threshold inertial switch. Nadezhnost' i kachestvo slozhnykh system = Reliability and quality of complex systems. 2022;(1):30–40. (In Russ.)
- Patent RF 2778658, MPK H01 H 35/14. Inertsionnyy vklyuchatel' = Inertial switch. Kitaev V.N. № 2022; appl. 01.04.2022; reg. 22.08.2022. (In Russ.)
- Patent RF 2784377, MPK H01 H 35/14. Inertsionnyy vklyuchatel' = Inertial switch. Kitaev V.N. № 2022; appl. 19.09.2022; reg. 24.11.2022. (In Russ.)
- Patent RF 2824656, MPK H01 H 35/14. Inertsionnyy vklyuchatel' = Inertial switch. Kitaev V.N., Tenetilov G.V. № 2024103939; appl. 16.02.2024; reg. 12.08.2024. (In Russ.)
- Bashta T.M. Mashinostroitel'naya gidravlika. Spravochnoe posobie = Machine-building hydraulics : a reference manual. Moscow: Mashinostroenie, 1971. (In Russ.)
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