Abstract
For the nonlinear disturbance actual issues of the model space drive mechanism two‐stage spur gear system, a nonlinear dynamic model of 14‐DOF (degree of freedom) two‐stage spur gear with time‐varying stiffness and damping was established. This model has been developed previously by the authors to access the large inertia on the dynamic response of spur gear space driving mechanism, and its effectiveness was proved by a motion simulation experiment. In this paper, the profile error (PE) and the index error (IE) were enhanced in the dynamic model. The effects of profile error, index error, and variable load torque on transmission error (TE) were analyzed, while the optimization was proposed according to the analyzed result. The peak‐to‐peak value of the optimized load transmission error (LTE) was reduced by 60.7%, which improved the transmission accuracy and reduced the phenomenon of disturbance. The research of nonlinear dynamical model of two‐stage spur gear and the TE of the large inertia load were enriched, which provided an important reference for the actual design of the gear system.
Highlights
The gear transmission system is widely utilized in machine tools, aerospace application, ships, and wind power as well as in other fields
The large inertia load in the space drive system has a significantly wide range of applications, because the load inertia of the entire system is relatively high compared to the transmission part, posing new problems and challenges in the transmission accuracy, life, reliability, and safety of the spacecraft transmission system
The overall peak-to-peak value of load transmission error (LTE) of the optimized gear system was reduced by 60.7%, which improved the gear system transmission accuracy of the space drive mechanism
Summary
The gear transmission system is widely utilized in machine tools, aerospace application, ships, and wind power as well as in other fields. Wang [5] studied the torsional vibration model of a singlestage spur gear drive system, analyzing the effect of stiffness on the dynamic behavior of the locomotive gear transmission system. The analysis of the dynamic characteristics of the large inertia load space drive mechanism is less relevant in the theoretical research, which mainly utilizes simulation technology for both analysis and research. In other studies, the large inertia load was not taken into account For these deficiencies, in this article, the effects of various factors were considered as much as possible, and the simulation model and the actual operation of the gear were attempted to be made consistent. To improve the gear system transmission accuracy and reduce the disturbance of the gear system, the gear reduction system of the large inertia load space drive mechanism was considered as the research object. The machining accuracy grade and input torque of the gear system were optimized, according to the analysis results
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
