压电驱动撞针式微喷系统的键合图建模

路士州 1; 刘亚欣 1; 2; 姚玉峰 1; 孙立宁 1

doi:10.7652/xjtuxb201401023

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压电驱动撞针式微喷系统的键合图建模

更新时间：2025-07-09

- 压电驱动撞针式微喷系统的键合图建模
- Bond Graph Modeling of Needle Typed Jet Dispensing System Driven by Piezoelectric Actuator
- 西安交通大学学报 2014年48卷第1期页码：133-138
- 作者机构：
  
  哈尔滨工业大学机器人技术与系统国家重点实验室,哈尔滨,150001
- 作者简介：
- 基金信息：
  
  : 2013-05-09。作者简介: 路士州(1986—),男,博士生;刘亚欣(通信作者),女,讲师。基金项目: 国家自然科学基金资助项目(51105116);西安交通大学机械制造系统工程国家重点实验室资助项目(2011004)
- DOI：10.7652/xjtuxb201401023
  中图分类号： TP6;TP24
- 网络首发：2014-01-10，
  
  纸质出版：2014
- 稿件说明：
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路士州 1, 刘亚欣 1, 2, 等. 压电驱动撞针式微喷系统的键合图建模[J]. 西安交通大学学报, 2014,48(1):133-138.

Bond Graph Modeling of Needle Typed Jet Dispensing System Driven by Piezoelectric Actuator[J]. 2014, 48(1): 133-138.
路士州 1, 刘亚欣 1, 2, 等. 压电驱动撞针式微喷系统的键合图建模[J]. 西安交通大学学报, 2014,48(1):133-138. DOI： 10.7652/xjtuxb201401023.

Bond Graph Modeling of Needle Typed Jet Dispensing System Driven by Piezoelectric Actuator[J]. 2014, 48(1): 133-138. DOI： 10.7652/xjtuxb201401023.

摘要

为了快速、精确地分配微量高黏性液体

以及研究系统参数对分配过程的影响

设计了一种压电驱动撞针式微喷系统

并构建了该系统的键合图模型。将压电致动器与撞针式微喷阀相结合

利用压电致动器高频振动来带动撞针运动

以此对微量液体的高速、精确分配进行操作。通过耦合各能域变量及不同液路通道的键合图图元参数

以及整合机电模块、液气模块的子键合图模型

得到微喷系统的整体键合图模型。仿真结果表明:液体喷射速度幅值与电压信号幅值和频率成正比例关系

喷射体积随储液筒上部气压升高而线性增加; 液体流速与撞针振动速度成线性关系

这在难以直接测量流速的场合

可通过测量撞针振动速度来间接监测液体流速。实验验证了微喷系统键合图模型及关键结论的正确性

研究成果能够为微喷系统的结构设计、控制参数的优化提供理论指导。

Abstract

To dispense high viscosity micro-droplets accurately and speedily

and investigate the dispensing effects affected by system parameters

a kind of needle typed jet dispensing system driven by piezoelectric actuator is designed

whose bond graph model is also constructed. Combining piezoelectric actuator and needle typed jet dispenser

the system utilizes the piezoelectric actuator to vibrate the needle

which drives the droplets squirt from the nozzle. The system model validated experimentally is obtained by coupling variables from different energy fields

and sub-models of electrical and liquid-gas parts constructed following bond graph parameters in different dispensing channels. The simulations show that the jetting speed and volume depend on the drive voltage and gas-pressure linearly. And the dispensing speed also linearly relates to the needle vibration speed

and it means that the dispensing speed can be monitored indirectly by testing needle vibration.

关键词

Keywords

references

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