Abstract
Based on the analysis of the movement rule of 3D five-way braided yarn, the 3D five-way braided case model is divided into three parts: base, case bottom plate and case wall. According to the characteristics of each part, the braiding and forming principle of a 3D five-way composite case was analyzed. Under the assumption of ignoring the influence of friction, bearing and other factors on the system, the differential equations of motion of the two-stage gear transmission system with case were established. The two-stage gear transmission system was numerically analyzed by Euler method, and the influence of dimensionless meshing frequency, clearance, case mass and damping on the dynamic characteristics of the transmission system was studied. After that, high and low frequency disturbance was applied to the input case. The research shows that the damping ratio of the composite case increases and the low frequency attenuation is accelerated due to the decrease of the case mass, so the composite case has better shock resistance to low frequency interference.
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Acknowledgments
The project is supported by Shaanxi Province Young Outstanding Talents Support Program Project (grant No. 106451420001), supported by Key research and development projects in Shaanxi Province (grant No. 2021GY-322 and No. 2022GY-254), supported by the Open Project Program of the State Key Lab of CAD&CG (Grant No. A2204), Zhejiang University, Supported by Anhui University Natural Science Research Project (grant No. KJ2021A0657) and supported by Key projects of Baoji University of Arts and Sciences (grant No. ZK2018065), and supported by Natural Science Basic Research Program of Shaanxi, China (Program No. 2022JM-252).
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Weiliang Zhang is a Lecturer in Mechanical Engineering, Baoji University of Arts and Sciences, Baoji Shaanxi, P. R. China. He is studying for a doctorate at Xi’an University of Technology. His research interests include performance analysis of three-dimensional braided composites and dynamic characteristics of mechanical systems.
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Zhang, W., Wang, X., Ji, X. et al. Analysis and research on dynamic characteristics of 3D braided composite two-stage reducer case. J Mech Sci Technol 37, 2843–2854 (2023). https://doi.org/10.1007/s12206-023-0511-9
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DOI: https://doi.org/10.1007/s12206-023-0511-9