Abstract
This paper presents the experimental study to control the vibrations of trailer used for the spacecraft transportation of launch vehicles (PSLV/GSLV) by regulating the vertical stiffness of air springs, vertical tire stiffness, speed and ballast weight. The spacecraft, after final preparations, are transported to launch pad for stacking using different trailers. The spacecraft experience vibrations during transportation and it is very critical that the vibration levels have to be controlled else if damages the electronic packages and other vital subsystems, which would jeopardize the whole mission. An experimental study was carried out to control the vibrations of trailers by changing the configurations, such as varying the vertical stiffness of air springs for air suspension trailer, vertical stiffness of tires, transportation speed, addition of ballast weight and sudden acceleration/braking. For this study, a 15 t capacity pneumatic suspension full trailer is selected and for the measurement of vibration levels in three directions, accelerometers are fixed to the trailer. The results were plotted and discussed in detail for each configuration. Nevertheless, it allowed for estimation of the trailer dynamic loads under real road conditions.
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Diwakar, N., Balaguru, S. (2020). Experimental Study on Vibration Control of Transportation Trailers Used for Spacecraft. In: Yang, LJ., Haq, A., Nagarajan, L. (eds) Proceedings of ICDMC 2019. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-3631-1_14
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DOI: https://doi.org/10.1007/978-981-15-3631-1_14
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