压电喷油器压电执行器热-电-机械耦合迟滞特性

doi:10.13229/j.cnki.jdxbgxb20161184

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 480-485.doi: 10.13229/j.cnki.jdxbgxb20161184

压电喷油器压电执行器热-电-机械耦合迟滞特性

孟育博¹, 张幽彤², 王志明¹, 张晓晨², 樊利康², 李涛²

1.山东大学能源与动力学院,济南 250011;
2.北京理工大学机械与车辆学院,北京 100081

收稿日期:2016-11-03 出版日期:2018-03-01 发布日期:2018-03-01
通讯作者: 王志明(1959-),男,教授,博士生导师.研究方向:内燃机工作过程控制. E-mail:zhiming@sdu.edu.cn
作者简介:孟育博(1986-),男,博士研究生.研究方向:柴油机喷油系统控制.E-mail:myb0201@126.com
基金资助:
“863”国家高技术研究发展计划项目(2012AA111708)

Couple hysteretic thermo-electro-mechanical performance of piezoelectric actuators for fuel injector

MENG Yu-bo¹, ZHANG You-tong², WANG Zhi-ming¹, ZHANG Xiao-chen², FAN Li-kang², LI Tao²

1.School of Energy and Power Engineering, Shandong University, Ji'nan 250011, China;
2.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

Received:2016-11-03 Online:2018-03-01 Published:2018-03-01

摘要/Abstract

摘要： 针对所开发的压电式共轨喷油器,采用压电执行器作为驱动元件,为了更好地对这类执行器的潜力进行开发,试验研究了压电执行器在准静态条件下的热-电-机械耦合特性。结果表明:在200~1200 N范围内,位移随着预紧力呈先增大后减小趋势;在25~80 ℃范围内,位移整体呈增大趋势,但随着温度升高,增长趋势逐渐变缓。一个包括压电堆迟滞特性和温度影响的数学模型被用来对试验结果进行模拟,仿真与试验结果具有良好的一致性。

关键词: 工程热物理, 压电执行器, 热-电-机械耦合, 迟滞特性, 数学模型

Abstract: To develop a piezoelectric common rail injection, the piezoelectric stack actuator was selected as the driving element. In order to exploit the potential of this kind actuation, the thermo-electro-mechanical behavior of the piezoelectric actuator was investigated by experiment, with maximum voltage of 150 V under different mechanical loads and different temperatures. Results show that, as the load increases from 200 N to 2000 N, the displacement increases first, and then decreases. In the temperature range of 25?C to 80 ?C, the displacement increase with the temperature, but this trend gradually slows down. A mathematical model based on the hysteresis and temperature effects is applied to simulate the experiment data, and the simulation results show reasonable agreement with the experiment results.

Key words: engineering thermophysics, piezoelectric actuators, thermo-electro-mechanical coupling, hysteretic performance, mathematical model

中图分类号:

TK427

孟育博, 张幽彤, 王志明, 张晓晨, 樊利康, 李涛. 压电喷油器压电执行器热-电-机械耦合迟滞特性[J]. 吉林大学学报(工学版), 2018, 48(2): 480-485.

MENG Yu-bo, ZHANG You-tong, WANG Zhi-ming, ZHANG Xiao-chen, FAN Li-kang, LI Tao. Couple hysteretic thermo-electro-mechanical performance of piezoelectric actuators for fuel injector[J]. 吉林大学学报(工学版), 2018, 48(2): 480-485.

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压电喷油器压电执行器热-电-机械耦合迟滞特性

Couple hysteretic thermo-electro-mechanical performance of piezoelectric actuators for fuel injector

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