| 基于节流阀的进口节流调速系统动态特性研究 |
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| 引用本文： | 李志红,陈继文.基于节流阀的进口节流调速系统动态特性研究[J].广西工学院学报,2010,21(2):86-90. |
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| 作者姓名： | 李志红 陈继文 |
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| 作者单位： | 1. 厦门理工学院,机械工程系,福建,厦门,361024
2. 山东建筑大学,机电工程学院,山东,济南,250101 |
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| 基金项目： | 国家"十一五"科技支撑项目 |
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| 摘 要： | 在进口节流调速系统中,负载的变化特别是阶跃变化,液压缸两腔压力会发生动态变化,甚至还会引起系统中液压元件损坏,影响液压系统的正常工作.以节流阀进口节流调速系统为例,建立以负载作为输入,液压缸无杆腔压力作为输出的系统数学模型,得到了液压缸无杆腔压力超调量的变化规律,并对理论推导与分析进行了试验验证,修正了液压元件主参数(额定压力)选择的计算公式,为系统设计以及元件参数选择提供依据.
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| 关 键 词： | 节流阀 进口节流调速系统 阶跃负载 液压缸 动态特性 |
Dynamic characteristics study on the entrance throttle governing system series-connecting throttle valve |
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| LI Zhi-hong,CHEN Ji-wen.Dynamic characteristics study on the entrance throttle governing system series-connecting throttle valve[J].Journal of Guangxi University of Technology,2010,21(2):86-90. |
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| Authors: | LI Zhi-hong CHEN Ji-wen |
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| Affiliation: | 1.Department of Mechanical Engineering,Xiamen University of Technology,Xiamen 361024,China;2.School of Mechanical and Electronic Engineering,Shandong Jianzhu University,Jinan 250101,China) |
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| Abstract: | The pressure of hydraulic cylinder chambers will change dynamically and even cause damage of hy-draulic elements and failure of the hydraulic system when the load or step load change.Based on the entrance throttle governing system series-connecting throttle valve,the mathematic model was built by using load as input and pressure of hydraulic cylinder chamber without rod as output,and the changing rules of pressure highly-ad-justed capacity were obtained.The theoretical derivation and analysis were proved by test,and the formulas of hydraulic elements＇ principal parameters were modified by using the pressure highly-adjusted capacity. |
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| Keywords: | throttle valve entrance throttle governing system step load hydraulic cylinder dynamic character-istics |
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