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浙江大学学报(工学版)
J4  2014, Vol. 48 Issue (2): 334-341    DOI: 10.3785/j.issn.1008-973X.2014.02.022
能源工程     
汽油机活塞二阶运动分析及优化设计
朱君亮, 郝志勇, 郑康
浙江大学 能源工程学系,浙江 杭州 310027
Analysis and optimization design on piston secondary motion of gasoline engine
ZHU Jun-liang, HAO Zhi-yong, ZHENG Kang
Department of Energy Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF(2410 KB)  
摘要：

为了降低活塞二阶运动并寻求优化措施,综合考虑裙部润滑摩擦状况、活塞体径向刚度、活塞体及缸套热态型面影响,建立某汽油机活塞组件动力学模型,采用数值仿真方法进行分析研究.从换向平稳性、运动平稳性、活塞敲击能和摩擦损耗4个方面对活塞二阶运动计算结果进行评价.分析在多种工况下（1 200、4 200、6 000 r/min）活塞裙部型线、配缸间隙和活塞销偏置对活塞二阶运动的影响,以敲击能和摩擦损耗为主要评价标准,提出相应的优化思路.结果表明：优化后的裙部型线使活塞的径向位移和角位移有一定幅度减小,径向位移最大值在3种工况下分别降低了22.2%、19.8%、21.2%,角位移最大值降低了12.9%、13.3%、23.6%；活塞对缸套的动态敲击力在优化后也有明显降低,为活塞整体优化提供可靠依据.
关键词： 活塞;  汽油机;  二阶运动;  敲击能;  摩擦损失;  优化设计    
Abstract:

In order to reduce piston secondary motion and provide the improved solution, the dynamic model of a gasoline engine piston set was established based on skirt lubrication and friction, piston radial stiffness and warm profile of piston and liner, and analyzed by numerical simulation method. The calculation result of piston secondary motion was evaluated from four aspects as switching stationarity, motion stability, piston kinetic energy and friction loss. The effects of piston skirt profile, radial clearance and pin offset on piston secondary motion were evaluated under different working conditions (1 200, 4 200, 6 000 r/min).Optimization methods were put forward mainly based on the piston kinetic energy and friction loss. The result shows that the optimized skirt profile decreases the piston radial displacement and titling angle. Under the three working conditions, the maximum of the radial displacement and titling angle decreases by 22.2%、19.8%、21.2% and 12.9%、13.3%、23.6% respectively. Dynamic excitation to the liner decreases obviously through optimization, which provides a reliable reference to the entire optimization of piston.
Key words: piston    gasoline engine    secondary motion    kinetic energy    friction loss    optimization design
出版日期: 2014-03-03
:  TK 412  
通讯作者: 郝志勇，男，教授，博导.     E-mail: haozy@zju.edu.cn
作者简介: 朱君亮（1989 —），男，硕士生，从事发动机仿真设计和试验工作. E-mail: nhce19891101@163.com
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引用本文:

朱君亮, 郝志勇, 郑康. 汽油机活塞二阶运动分析及优化设计[J]. J4, 2014, 48(2): 334-341.

ZHU Jun-liang, HAO Zhi-yong, ZHENG Kang. Analysis and optimization design on piston secondary motion of gasoline engine. J4, 2014, 48(2): 334-341.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2014.02.022    或    http://www.zjujournals.com/xueshu/eng/CN/Y2014/V48/I2/334

［1］ 庞剑,湛刚.汽车与发动机振动噪声理论与应用［M］.北京：科学出版社,2006: 152.
［2］ 陈靠.活塞二阶运动分析及敲击噪声预测［D］.哈尔滨: 哈尔滨工程大学, 2007: 5-13.
CHEN Kao. An analytical study of piston secondary motion and prediction of impact noise［D］. Harbin: Harbin Engineering University,2007: 513.
［3］ 孙彬,桑农,李峥,等. 二阶运动现象及其分析研究［J］. 模式识别与人工智能, 2009(3): 344-348.
SUN Bin, SANG Nong, LI Zheng, et al. Analysis of second order motion［J］.Pattern Recognition and Artificial Intelligence,2009(3): 344348.
［4］ GENG Z, CHEN J. Investigation into piston-slap-induced vibration for engine condition simulation and monitoring ［J］. Journal of Sound and Vibration,2005,282(3/5)： 735-751.
［5］ REBECCA M, SUDJIANTO A, Du X P, et al. Robust piston design and optimization using piston secondary motion analysis ［C］∥SAE Paper. Detroit： ［s. n.］, 2003010148.
［6］ CHO S H, AHN S T, KIM Y H. A simple model to estimate the impact force induced by piston slap ［J］. Journal of Sound and Vibration,2002,255(2): 229-242.
［7］ MANSOURI S H, WONG V W. Effects of piston design on piston secondary motion and skirt-liner friction［C］ ∥SAE Paper. Tampa：［s. n.］, 2004012911.
［8］ 雷基林,申立中,程丁丁,等.考虑热变形的活塞组件结构对活塞二阶运动的影响分析［J］.内燃机工程,2012, 33（2）：86-92.
LEI Ji-lin, SHEN Li-zhong, CHENG Ding-ding, et al. Effect of piston set structure on piston secondary motion considering thermal deformation ［J］.Chinese Internal Combustion Engine Engineering,2012,33（2）： 86-92.
［9］ 王攀,邓兆祥,罗虹,等.内燃机活塞拍击及其噪声研究［J］.内燃机学报,2010,28（5）： 475-479.
WANG Pan, DENG Zhao-xiang, LUO Hong, et al. Study on piston slap and induced noise in internal combustion engines ［J］. Transactions of CSICE, 2010,28（5）： 475-479.
［10］ PATIR N,CHENG H S. An average flow model for determining effects of three-dimensional roughness on partial hydrodynamic lubrication ［J］.Transactions of the ASME, 1978,100(1): 12-17.
［11］ 郭磊,郝志勇,张鹏伟,等.活塞动力学二阶运动的仿真方法和试验研究［J］.内燃机工程,2009,30（6）：41-47. GUO Lei, HAO Zhi-yong, ZHANG Peng-wei, et al. Simulation and experimental research on piston secondary motion ［J］.Chinese Internal Combustion Engine Engineering, 2009,30（6）： 41-47.
［12］ 陶莉莉,刘世英.高性能发动机活塞裙部型面设计分析 ［J］.山东交通学院学报,2005,13（3）： 42-45.
TAO Li-li, LIU Shi-ying. Analyzing piston skirt profile design of high performance engine ［J］. Journal of Shan-dong Jiaotong University, 2005,13（3）： 42-45.
［13］ 景国玺.活塞组多物理场耦合非线性问题及环组机油消耗改进设计研究［D］.杭州: 浙江大学, 2011: 41-74.
JING Guo-xi. Research on multi-physical coupling nonlinear problem and improved design of ring-pack lubricating oil consumption［D］.Hangzhou: Zhejiang University, 2011: 41-74.
［14］ 牛金德.发动机活塞裙部与中凸靠模板型线设计计算方法［J］.宁夏工程技术,2002, 1(3): 270-271.
NIU Jin-de. The design and calculating method for molded lines of piston skirt and convexity mother plate of engines ［J］. Ningxia Engineering Technology, 2002, 1(3): 270-271.
［15］ 赵伟,苏铁熊.活塞裙部型线研究［J］. 农业装备与车辆工程. 2010(6): 21-23.
ZHAO Wei, SU Tie-xiong. Study of piston skirt profile ［J］. Small Internal Combustion Engine and Motorcycle, 2010(6): 21-23.
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