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摘要: 为了提高车辆动力学模型中非线性元件数学模型的模拟精度, 分析了一、二维干摩擦副、三大件转向架的摩擦楔块和带串联刚度阻尼器的动力学性能, 建立了非传统的数学模型, 即不合速度状态变量的模型, 并设计了对应的Simulink程序, 用典型例题与传统模型的性能进行了对比分析。分析结果表明: 非传统数学模型能克服强非线性带来的数值计算问题, 提高了计算精度和计算效率, 一般根据不同模型的规模和非线性元件数, 计算速度能提高2~10倍。Abstract: In order to improve the modeling precision of nonlinear components' mathematics models in vehicle dynamics simulation, the dynamics properties of one/two dimension columbic friction pairs, the friction wedge of three piece bogies and the damper with series stiffness were analyzed, their unconventional mathematics models were set up without velocity variable, their Simulink programs were designed, and their characters were compared with traditional models. Analysis result shows that the models overcome the numerical computation problems resulted from traditional models, have higher computational precision and efficiency, and their computational velocities increase by 2~10 times according to the scales of the models and the numbers of their nonlinear components. 24 figs, 10 refs.
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Key words:
- vehicle engineering /
- simulation models /
- key components /
- dynamics analysis
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图 3 一维摩擦副的Simulink模型
Figure 3. Simulink model of 1-D friction pair with series stiffness
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[1] 李小联. 货车摩擦减振器的技术改进[J]. 铁道运行技术, 2002, 8(1): 18-19. https://www.cnki.com.cn/Article/CJFDTOTAL-TDYY200201007.htmLi Xiao-lian. Improved friction damper on freight car[J]. Railway Operation Technology, 2002, 8(1): 18-19. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDYY200201007.htm [2] 杨爱国, 于连友, 韩建民, 等. 交叉支撑转向架摩擦减振装置摩擦副试验研究[J]. 铁道车辆, 2005, 43(8): 14-18. doi: 10.3969/j.issn.1002-7602.2005.08.003Yang Ai-guo, Yu Lian-you, Han Jian-min, et al. Test and research on friction pairs in the friction damping devices on cross-braced bogies[J]. Rolling Stock, 2005, 43(8): 14-18. (in Chinese) doi: 10.3969/j.issn.1002-7602.2005.08.003 [3] Karnopp D. Computer simulation of stickslip friction in mechanical dynamic systems[J]. Transactions of the ASME, 1985, 107(3): 101-103. [4] 沈钢. 摩擦副仿真模型研究及其在机车车辆动力学中的应用[J]. 铁道机车车辆, 2002, 22(3): 3-5. doi: 10.3969/j.issn.1008-7842.2002.03.002Shen Gang. Modeling of a stick-slip friction pair and its application on the dynamics of railway vehicles[J]. Railway Locomotive and Car, 2002, 22(3): 3-5. (in Chinese) doi: 10.3969/j.issn.1008-7842.2002.03.002 [5] 张锐, 沈钢, 于兆华. 铁路提速货车非线性动力学仿真模型研究[J]. 铁道机车车辆, 2006, 26(5): 33-37. doi: 10.3969/j.issn.1008-7842.2006.05.008Zhang Rui, Shen Gang, Yu Zhao-hua. Research on the full nonlinear dynamic model of speed-up railway freight[J]. Railway Locomotive and Car, 2006, 26(5): 33-37. (in Chinese) doi: 10.3969/j.issn.1008-7842.2006.05.008 [6] 张锐, 尚景华. 三大件货车斜锲摩擦副磨耗动态仿真的研究[J]. 机械研究与应用, 2006, 19(3): 72-74. https://www.cnki.com.cn/Article/CJFDTOTAL-JXYJ200603034.htmZhang Rui, Shang Jing-hua. Research on the dynamic simulation model of freight truck's friction wedge[J]. Mechanical Research and Application, 2006, 19(3): 72-74. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JXYJ200603034.htm [7] 王勇, 曾京, 吕可维. 三大件转向架货车动力学建模与仿真[J]. 交通运输工程学报, 2003, 3(4): 30-34. doi: 10.3321/j.issn:1671-1637.2003.04.008Wang Yong, Zeng Jing, Lu Ke-wei. Dynamic modeling and simulation of three-piece bogie freight car[J]. Journal of Traffic and Transportation Engineering, 2003, 3(4): 30-34. (in Chinese) doi: 10.3321/j.issn:1671-1637.2003.04.008 [8] 王勇, 曾京, 张卫华. 铁道货车非线性稳定性研究[J]. 交通运输工程学报, 2002, 2(2): 36-40. doi: 10.3321/j.issn:1671-1637.2002.02.009Wang Yong, Zeng Jing, Zhang Wei-hua. Nonlinear stability study of railway freight cars[J]. Journal of Traffic and Transportation Engineering, 2002, 2(2): 36-40. (in Chinese) doi: 10.3321/j.issn:1671-1637.2002.02.009 [9] Debeer F G, Vvrheij J W. Experimental determination of pass-by noise contributions from the bogies and superstructure of a freight wagon[J]. Journal of Sound and Vibration, 2000, 231(3): 639-652. doi: 10.1006/jsvi.1999.2551 [10] Ferguson N S. Modelling the vibrational characteristics and radiated sound power for a Y25-type bogie and wagon[J]. Journal of Sound and Vibration, 2000, 231(3): 791-803. doi: 10.1006/jsvi.1999.2563 -
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