• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (5): 148-155.doi: 10.3901/JME.2019.05.148

• 数字化设计与制造 • 上一篇    下一篇

基于磨损间隙下碰撞能耗模型的发动机曲轴服役-再制造状态分析方法

柯庆镝, 詹伟, 宋守许, 刘光复   

  1. 合肥工业大学机械工程学院 合肥 230009
  • 收稿日期:2017-10-19 修回日期:2018-04-02 出版日期:2019-03-05 发布日期:2019-03-05
  • 通讯作者: 詹伟(通信作者),男,1991年出生,硕士研究生。主要研究方向为绿色设计与制造。E-mail:zw0827@163.com
  • 作者简介:柯庆镝,男,1984年出生,博士,副教授。主要研究方向为机械产品绿色制造,再制造技术等。E-mail:qingdi.ke@hfut.edu.cn;宋守许,男,1964年出生,博士,教授,博士研究生导师。主要研究方向为绿色设计与绿色制造、产品再资源化技术与装备。E-mail:songshouxu@hfut.edu.cn;刘光复,男,1945年出生,教授,博士研究生导师。主要研究方向为现代集成制造技术,机电产品绿色设计与绿色制造。E-mail:gfliu@hfut.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51375133)。

Analyzing Method for Service & Remanufacturing performance of Engine Crankshaft Based on Collision Energy Consumption Model with Wearing Clearance

KE Qingdi, ZHAN Wei, SONG Shouxu, LIU Guangfu   

  1. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009
  • Received:2017-10-19 Revised:2018-04-02 Online:2019-03-05 Published:2019-03-05

摘要: 由于机电产品服役环境中存在各类负载,增加了其关键零部件(如曲轴)的状态不确定性,极大阻碍了机电产品定期维护及其关键零部件(如曲轴)的服役维护及末端再制造。针对这一问题,基于曲轴连杆部件的动力学分析,构建磨损间隙下曲轴连杆部件碰撞能量消耗模型。同时结合在线监测技术,基于台架实验获取发动机服役状态监测数据,并利用小波包分析方法提取相关监测特征参数,分析其与碰撞运动能量消耗之间的映射关系,提出了磨损间隙下曲轴连杆状态监测特征参数的演化规律模型。该能量消耗模型及特征参数可用于发动机曲轴服役状态监测及失效预测过程,为发动机维护及再制造提供技术支撑。

关键词: 发动机曲轴, 服役状态, 小波包分析, 再制造, 在线监测

Abstract: Due to the existence of various load in the mechanical and electrical products service environment, increasing the key components (such as crankshaft) state of uncertainty, greatly hindered the mechanical and electrical products maintenance and the end-of-life remanufacturing of its key parts (such as crankshaft). To solve this problem, based on the dynamic analysis, the collision energy consumption model of crankshaft connecting rod under wear clearance is constructed. Meanwhile, the on-line monitoring technology is used to obtain the monitoring data of engine service condition through bench test. And the related monitoring characteristic parameters were extracted by the wavelet packet analysis method, and the mapping relationship between the monitoring parameters and the collision energy consumption is established to present the evolution rule the monitoring parameters of the crankshaft connecting rod under wear clearance. The method can be used in the monitoring of engine service state and predict process, and provides technical support for engine maintenance and remanufacturing.

Key words: engine crankshaft, on-line monitoring, operating performance, remanufacturing, wavelet packet analysis

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