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

Authors: Gonsales A.A.V. Published: 17.04.2024
Published in issue: #1(148)/2024  


Category: Mechanical Engineering and Machine Science | Chapter: Ground Transport and Technological Means and Complexes  
Keywords: passive safety, hybrid gas generator, high-speed photography, instrumental decomposition, reverse engineering


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


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