车辆多级行星传动系统扭振特性分析与优化

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英文篇名：Torsional Vibration Analysis and Optimization of Vehicle Multi-stage Planetary Transmission System 作者：张强 ; 李洪武 英文作者：Zhang Qiang;Li Hongwu;School of Mechanical and Vehicle Engineering,Beijing Institute of Technology;Key Laboratory of Vehicle Transmission,China North Vehicle Research Institute; 关键词：动力学模型 ; 模态分析 ; 振动分析 ; 灵敏度分析 英文关键词：planetary gear mechanism;;dynamic models;;modal analysis;;vibration analysis;;sensitivity analysis;;vehicle;;simulation 中文刊名：JXKX 英文刊名：Mechanical Science and Technology for Aerospace Engineering 机构：北京理工大学机械与车辆学院;中国北方车辆研究所车辆传动重点实验室; 出版日期：2018-09-25 16:18 出版单位：机械科学与技术 年：2019 期：v.38;No.289 基金：国家自然科学基金项目(51375043);; 车辆传动国家重点实验室基金项目(9140C340101101);; 河北省科学技术研究青年基金项目(QN2018168)资助 语种：中文; 页：JXKX201903003 页数：5 CN：03 ISSN：61-1114/TH 分类号：17-21

摘要

针对某高速履带车辆七档行星传动系统匹配问题,利用集中质量法建立了等效扭振模型,分析了扭振系统无阻尼自由振动固有频率和振型对转动惯量及刚度的灵敏度。结合行星变速机构的固有特征和内外激励频率,分析了行星变速机构各档位的共振情况,并基于灵敏度分析对扭转模型进行了动力学参数的优化。仿真实验的结果表明,优化后的动力学参数可较好地避免扭转振动。研究结果为进一步分析行星传动系统匹配对扭转振动的影响及改进扭振性能具有一定指导作用。
        According to the seven-gear planetary transmission system matching problem of a high-speed tracked vehicle,the equivalent torsional vibration model is established by the concentrated mass method. The natural frequencies of the undamped torsional vibration system and the sensitivity of the vibration mode to the moment of inertia and stiffness are analyzed. Combining with the inherent characteristics of the planetary gear mechanism and the internal and external excitation frequencies,the resonance conditions of each gear of the planetary transmission mechanism are analyzed. Based on the sensitivity analysis,the dynamic parameters of the torsion vibration model are optimized. The simulation results show that the optimized dynamic parameters can avoid torsional resonance better. The results of the study provide some guidance for the further analysis of the matching influence of the planetary transmission system on the torsional vibration and the improvement of torsional vibration performance.

引文

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