Abstract
Dynamic behavior of gear transmissions running under non-stationary operating conditions is extremely different from that operating in stationary conditions. The main feature that makes this difference is the variability of speed. Three main cases where it is possible to observe speed variation: start-up, shut down and time varying loading conditions. In this chapter, these three regimes will be discussed using dynamic modeling of gear transmission. Both amplitude and frequency modulations are observed in vibration signatures. The case study of wind turbine transmission is presented at the end of the chapter showing clearly this phenomenon.
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Chaari, F., Haddar, M. (2014). Modeling of Gear Transmissions Dynamics in Non-stationary Conditions. In: Chaari, F., Leśkow, J., Napolitano, A., Sanchez-Ramirez, A. (eds) Cyclostationarity: Theory and Methods. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-04187-2_8
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DOI: https://doi.org/10.1007/978-3-319-04187-2_8
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