| 基于负载匹配的阀控液压缸匹配特性研究 |
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| 引用本文： | 王鑫涛,杜星.基于负载匹配的阀控液压缸匹配特性研究[J].液压与气动,2019,0(5):117-121. |
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| 作者姓名： | 王鑫涛 杜星 |
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| 作者单位： | 中国飞机强度研究所全尺寸飞机结构静力/疲劳航空科技重点实验室， 陕西西安710065 |
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| 摘 要： | 阀控缸系统作为飞机结构强度试验中至关重要的设备之一，其工作状态的性能直接影响着试验的可靠性和安全性。通常情况下采用经验公式进行伺服阀和液压缸的选取，该方法存在较大的匹配误差，很容易造成伺服阀选择偏小或者功率利用率较低，且伺服阀未工作在最佳状态。因此，采用负载匹配的方法，通过液压缸的负载特性曲线与伺服阀的压力-流量特性曲线之间的关系，结合实际试验件特性以及试验所采用的设备，提出一种伺服阀与液压缸的选择方法，为飞机结构试验阀控缸系统的选型和设计提供依据，使试验设备工作状态得到较大改善。
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| 关 键 词： | 强度试验 阀控缸系统 负载匹配 特性曲线 |
| 收稿时间： | 2018-10-11 |
Matching Characteristics Research Based on Load Matching for Valve-controlled Hydraulic Cylinder |
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| WANG Xin-tao,DU Xing.Matching Characteristics Research Based on Load Matching for Valve-controlled Hydraulic Cylinder[J].Chinese Hydraulics & Pneumatics,2019,0(5):117-121. |
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| Authors: | WANG Xin-tao DU Xing |
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| Affiliation: | Aviation Technology Key Laboratory of Full Scale Aircraft Structure Static and Fatigue Test, Aircraft Strength Research Institute of China, Xian, Shaanxi710065 |
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| Abstract: | A valve-controlled cylinder system is one of the most important equipment in a structural strength test of aircraft. The performance of its working state directly affects reliability and safety of the test. Usually, an empirical formula is used to select a servo valve and a hydraulic cylinder. This method has a large matching error, which is easy to cause smaller servo valve selection or lower power utilization rate and the servo valve does not work at the optimum state. The load matching method is used , through the relationship between the load characteristic curve of hydraulic cylinder and the pressure flow characteristics curve of servo valve, combined with the characteristics of the actual test piece and the equipment used in the test, a method for selecting servo valve and hydraulic cylinder is proposed . The basis for selection and design of aircraft structure test valve control cylinder system is provided , so that the working condition of test equipment is greatly improved. |
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