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Abstract
The static deployment test is the major means to evaluate the performance of the airbag module, and identify whether or not the airbag module meets one of the test items needed for the airbag system performances. The test is also one of the most important techniques in the stage of the airbag module research and development. The purpose of this research is to build up a set of static deployment test system that can be used to verify the design of the airbag module. During the process from firing to deploying, the system can watch the behavior of each component of the airbag module, including the time when the cover breaks, whether or not the cover opens along the direction of the tear line, whether or not the cover sheds off, whether or not the cushion deploys completely, whether or not the cushion burns through by solid particles produced by the combustion of the gas generator after the inflator fires; whether or not the seam thread of the cushion breaks; and whether or not the container deforms. Meanwhile, the data acquisition system acquires the data to analyze the pressure and the cushion deploys time to finish verifying the design of the airbag module. In the initial vehicle type developing stage, only when the development function of airbag module is tested, verified and qualified by the static deployment testing system can the vehicle equipped with airbag system be massively produced and enter the market. This thesis builds up a set of airbag static deployment test system, which is of low cost and high accuracy, embodying five functions: firing and triggering synchronously, pressure measuring dynamically, high speed videos taking, data acquiring and recording, and digital signals filtering. The system with those functions helps research and development staff test airbag module in the stage of research and development, and analyze the experiment data acquired, so that research and development staff can adjust interface design integrating all components of the airbag module, enabling the airbag module to meet the specification needed as designed.
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