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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (1): 1-7    DOI: 10.3785/j.issn.1008-973X.2010.01.001
机械工程     
基于虚拟样机技术的数字式柱塞泵控制特性研究
张斌1,徐兵1,杨华勇1,杨强2,罗德刚2
（1.浙江大学 流体传动与控制国家重点实验室,浙江 杭州 310027； 2.贵州力源液压股份有限公司,贵州 贵阳 550018）
Study on control performance of digital piston pump based on virtual prototype technology
ZHANG Bin1, XU Bing1, YANG Hua-yong1, YANG Qiang2, LUO De-gang2
(1.State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China;
2.Guizhou Liyuan Hydraulic Com. Ltd, Guiyang 550018, China)
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摘要：

为了开发新式的数字液压泵并研究其控制特性,开发了高速开关阀控制的数字式柱塞泵,通过可编制控制器程序来实现不同的控制功能.分析该数字泵的控制原理,建立数字泵的动力学模型和液压系统模型,并以接口模型实时连接2个模型构成数字泵的虚拟样机.通过虚拟样机仿真和试验测试,研究数字泵的流量控制、压力控制和功率控制等功能.结果表明,数字式柱塞泵压力、流量控制的调节时间可以控制在2 s以内,能够达到精确的控制结果,同时实现准确的恒功率控制方式.采用高速开关阀控制的数字式柱塞泵满足控制性能需要,可以实现良好的柱塞泵变量控制功能.数字泵虚拟样机能够实现对数字泵控制性能的准确预测,仿真结果和试验结果吻合较好,虚拟样机技术将成为数字泵设计和优化的重要手段.
Abstract:

In order to develop a new type of digital hydraulic pump and study its control characteristics, with the high-speed on/off valve control, a new type of control mode for digital piston pump was developed to realize different functions by changing a controller program. The dynamic and hydraulic models were established by analyzing the control principle of this digital pump. An interface was designed to connect the two models, and a virtual prototype of this digital pump was built in the virtual prototype platform. The flow control, pressure control and power control of this digital pump were studied in two ways: the simulation of the virtual prototype and the experiments of the physics prototype. The results showed that accurate pressure and flowcontrol can be realized in less than 2 s, and accurate constant power control can be performed. So the digital pump is convenient to meet different control requirements by using defining way. Besides, the virtual prototype technology can well predict the pump performance and would be a good choice in designing and optimizing the digital pumps．
出版日期: 2010-02-26
:  TH 137.5  
基金资助:

国家“十一五”科技支撑计划资助项目（2006BAF01B01, 2006BAF01B04）；国家“863”高技术研究发展计划资助项目（2007AA041803）;上海市数字化汽车车身工程重点实验室开放课题基金资助项目(MSV-2009-02).
通讯作者: 徐兵，男，教授.     E-mail: bxu@zju.edu.cn
作者简介: 张斌（1980―），男，河北邯郸人，博士生，从事流体传动及控制研究.
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引用本文:

张斌, 徐兵, 杨华勇, 等. 基于虚拟样机技术的数字式柱塞泵控制特性研究[J]. J4, 2010, 44(1): 1-7.

ZHANG Bin, XU Bing, YANG Hua-Yong, et al. Study on control performance of digital piston pump based on virtual prototype technology. J4, 2010, 44(1): 1-7.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.01.001    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I1/1

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