Abstract
This paper presents a dynamic modeling method of a gear transmission system considering the barrel roll flight environment. The kinematic equations of gear transmission system component are derived under non-inertial frame. The dynamics model of the gear rotor transmission system with time-varying positions was established using Lagrange energy method, and derived the gear transmission system dynamic contact stress calculation model combined with Hertz formula. The influence laws of barrel rolling acceleration and radius parameters on vibration response, axis trajectory, bearing support force and dynamic contact stress were solved and studied. The results show that considering maneuvering flight conditions, the frequency spectrum of vibration response appears time-varying rotation excitation frequency. The trajectory of the axis deviates with the barrel rolling parameters in different directions, and the influence of the driven gear with larger mass is more significant. The airframe flight will also affect the value and direction of the bearing’s supporting force vector, and the dynamic contact stress increases with the amplification of barrel radius. This paper provides a theoretical basis for the dynamic stress calculation and reliability design of gear transmission in time-varying positions.
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Acknowledgments
The author is grateful for the support of the National Natural Science Foundation of China (grant number 51775058), the National Key R&D Program of China (No. 2020YFB2008101) and Innovation Group Science Foundation of Chongqing Natural Science Foundation (No. cstc2019jcyj-cxttX0003).
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Cheng, H., Wei, J., Zhang, A., Peng, B. (2022). Dynamic Response of Gear Transmission System under Barrel Rolling Flight Environment. In: Khang, N.V., Hoang, N.Q., Ceccarelli, M. (eds) Advances in Asian Mechanism and Machine Science. ASIAN MMS 2021. Mechanisms and Machine Science, vol 113. Springer, Cham. https://doi.org/10.1007/978-3-030-91892-7_15
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DOI: https://doi.org/10.1007/978-3-030-91892-7_15
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