TH132
（国家自然科学基金资助项目(51705204，U1764257,51605040)；汽车零部件先进制造技术教育部重点实验室开放课题基金资助项目（2018KLMT04）
- WANG Feng1,2 ，ZHANG Jian1，XU Xing1，CHEN Long1 ，FANG Zongde3，ZHOU Zhiguang4，SUN Xiaoqian1
WANG Feng1,2 ，ZHANG Jian1，XU Xing1，CHEN Long1 ，FANG Zongde3，ZHOU Zhiguang4，SUN Xiaoqian1
(1. Automotive Engineering Research Institute, Jiangsu University Zhenjiang, 212013, China)（2. Key Laboratory of Advanced Manufacture Technology for Automobile Parts（Chongqing University of Technology），Ministry of Education Chongqing, 400054, China)(3. School of Mechanical Engineering, Northwestern Polytechnical University Xi′an, 710072, China)(4. New Energy Development Department Powertrain Technology Center, Chery Automobile Co., Ltd. Wuhu, 241009, China)
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为了分析基于齿背接触刚度的高速斜齿轮瞬态振动放大特性，针对高转速瞬态工况下斜齿轮齿面啮合脱啮齿背接触的齿面实际承载接触状态，建立了同时考虑啮合时间与齿面振动位移耦合机理的斜齿轮动态啮合刚度。在细化考虑齿背啮合机理、基于齿背实际啮合刚度的模型基础上，进一步建立斜齿轮啮合型瞬态振动模型，并在此基础上展开不同齿侧间隙以及齿背接触对系统瞬态振动特性影响分析研究。搭建封闭功率流式斜齿轮瞬态扭转振动测试试验台，对基于齿背接触刚度的斜齿轮瞬态振动特性进行了验证。该研究具有较好的理论研究意义，有利于斜齿轮传动系统在航空传动、新能源传动系统上的应用推广，进一步提升高转速齿轮系统的瞬态振动噪声品质。
The transient vibration amplification characteristics of high-speed helical gears considering the back contact stiffness of gears is studied. In light of this problem, the dynamic meshing stiffness of helical gear is introduced. The parameter implies the coupling mechanism of meshing time and vibration displacement of the tooth surface, as well as the actual load contact state of the tooth surface at the high-speed transient condition. First, a 6-degree of freedom helical gear transient vibration model is established based on the dynamic meshing stiffness and backlash excitations. Then, the influences of different backlash and back sided impacts on the transient vibration characteristics are thoroughly analyzed. Finally, a helical gear transient torsional vibration test rig with enclosed power flow is built, and the transient vibration characteristics of helical gears with contact stiffness of the back teeth are verified. The research not only has great theoretical significance, but is also beneficial to the popularization and application of the helical gear transmission system in the aviation transmission and the new energy transmission system, and further improve the transient vibration and noise quality of high-speed gear system.
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