Structural and Functional Analysis of the Hybrid Gas Generators of the Vehicle Airbag Modules

Abstract

Airbag module is the most important passive safety system in a vehicle providing the driver and passengers’ protection in the event of collision with a static or moving object. The system main task is to minimize injuries to the driver and passengers, as well as reduce mortality in the road accidents. To develop and test the modern high-tech airbag modules, informative theoretical and experimental methods for studying their non-stationary operation processes are required, as well as the structural and functional diagrams of the modules typical actuators (gas generators). They are created on the basis of real field tests and verified methods in calculating parameters of the gas generator operation processes and airbags deployment. Experimental study results of the airbag modules operation process are presented; hybrid gas generators are their actuators. Based on the developed methodology to determine the operation dynamics parameters of the airbag modules of various types using tools of the experimental physics of fast processes, high-speed photography of the airbag inflation processes with activating the hybrid gas generators was carried out. Besides, the latter were instrumentally decomposed, and structural layouts of all the components and parts were determined, as well as their functional purpose and design peculiarities. Using the reverse engineering methods, 3D models of the typical hybrid gas generators were developed. Conducted research and its results are an important component in creating scientific, technical and experimental base for design, development and production of the high-tech internal passive vehicle safety systems in Russia

Please cite this article in English as:

Gonsales Astua A.V. Structural and functional analysis of the hybrid gas generators of the vehicle airbag modules. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2024, no. 1 (148), pp. 36--54 (in Russ.). EDN: CTXJNK

References

[1] Kravets V.N. Izmeriteli ekspluatatsionnykh svoystv avtotransportnykh sredstv [Measuring performance properties of motor vehicles]. Nizhniy Novgorod, NSTU im. R.E. Alekseeva Publ., 2014.

[2] Polungyan A.A., ed. Proektirovanie polnoprivodnykh kolesnykh mashin. T. 3 [Design of all-wheel drive wheeled vehicles. Vol. 3]. Moscow, BMSTU Publ., 2008.

[3] Khusainov A.Sh., Kuzmin Yu.A. Passivnaya bezopasnost avtomobilya [Passive safety of a car.]. Ulyanovsk, Izd-vo UlTSU Publ., 2011.

[4] Savich E.L., Kapustin V.V. Sistemy bezopasnosti avtomobiley [Safety systems of automobiles]. Ulyanovsk, Infra-M Publ., 2019.

[5] Minchenko A.V., Kuzmin N.A., Protasov V.I., et al. Analysis of passive safety systems. Molodoy uchenyy [Young Scientist], 2020, no. 11, pp. 44--47 (in Russ.).

[6] Gonsales Astua A.V., Karnaukhov K.A., Malishchuk T.S., et al. Design and production technology features of the domed solid fuel gas generators with single-stage response of the vehicle passive safety system. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2023, no. 1 (144), pp. 67--79 (in Russ.). DOI: http://doi.org/10.18698/0236-3941-2023-1-67-79

[7] Yuskaev Yu.Yu., Raevskaya L.T. Simulation of a motor vehicle portable device of pas-sengers’ passive safety. Innovatsionnyy transport [Innotrans], 2020, no. 2, pp. 70--73 (in Russ.). DOI: https://doi.org/10.20291/2311-164X-2020-2-70-73

[8] Melnikov V.E. Sovremennaya pirotekhnika [Modern pyrotechnics]. Moscow, Nauka Publ., 2014.

[9] Shidlovskiy A.A. Osnovy pirotekhniki [Fundamentals of pyrotechnics]. Moscow, Mashinostroenie Publ., 1973.

[10] Aleshin A.V., Shirokova G.N. Pyrotechnic compositions for nitrogen production on the basis of azides. Khimicheskaya fizika, 1999, vol. 18, no. 2, pp. 72--79 (in Russ.).

[11] Hirata N., Matsuda N., Kubota N. Combustion of NaN₃ based energetic pyrolants. Propellants, Explos. Pyrotech., 2000, vol. 25, no. 5, pp. 217--219. DOI: https://doi.org/10.1002/1521-4087(200011)25:5<217::AID-PREP217>3.CO;2-G

[12] Kotiev G.O., Petyukov A.V., Gonsales Astua A.V. Experimental-theoretical method for studying the vehicle airbag modules functioning. Trudy NAMI, 2021, no. 2, pp. 15--24 (in Russ.). DOI: https://doi.org/10.51187/0135-3152-2021-2-15-24

[13] Andreev S.G., Boyko M.M., Selivanov V.V. Eksperimentalnye metody fiziki vzryva i udara [Experimental methods of explosion and impact physics]. Moscow, FIZMATLIT Publ., 2013.

[14] Orlenko L.P., ed. Fizika vzryva [Explosion physics]. Moscow, FIZMATLIT Publ., 2004.

[15] Remote control unit --- help file. Vision Research-AMETEK Material Analysis Division, Wayne, New Jersey, 2013.

[16] Phantom video player help file. Vision Research--AMETEK Material Analysis Division, Wayne, New Jersey, 2016.

[17] Gonsales Astua A.V. [Inverse problem of determining the inflation pressure of a hybrid gas generator of a car side airbag (curtain)]. Sb. tez. dokl. Vseros. stud. nauch. konf. "Studencheskaya nauchnaya vesna" [Abs. Russ. Stud. Sc. Conf. Student Spring]. Moscow, Nauchnaya biblioteka Publ., 2022, pp. 106--107 (in Russ.).

[18] Gonsales Astua A.V., Goncharov R.B., Malishchuk T.S. Experimental analysis of elemental composition of materials used to manufacture gas generators for vehicle airbag modules. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2022, no. 2 (141), pp. 75--88 (in Russ.). DOI: http://doi.org/10.18698/0236-3941-2022-2-75-88

[19] Gonsales Astua A.V., Goncharov R.B., Petyukov A.V. Calculation method for the strength of the automotive airbag gas generator housing. Vestnik MADI, 2022, no. 1, pp. 3--11 (in Russ.).

[20] Savenko S.K., Gurin A.A., Malyy P.S. Udarnye vozdushnye volny v podzemnykh vyrabotkakh [Shock air waves in underground excavations]. Moscow, Nedra Publ., 1973.