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计量学报  2020, Vol. 41 Issue (12): 1510-1515    DOI: 10.3969/j.issn.1000-1158.2020.12.11
  力学计量 本期目录 | 过刊浏览 | 高级检索 |
灭火飞机投放试验地面附着密度测量方法研究
彭冉,王晨昱
中国飞行试验研究院, 陕西 西安 710089
Study on Measurement Method of Ground Adhesion Density of Fire Extinguishing Aircraft Launching Test
PENG Ran,WANG Chen-yu
Chinese Flight Test Establishment, Xi'an, Shaanxi 710089, China
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摘要 基于水体投放的扩散特性和工程试验的要求,设计了一种灭火飞机量化落水地面附着特性的测量方法。该方法主要包含地面数据采集的试验设备、矩阵布局和精度评估3个方面,考虑到工程试验费用的有限性,根据飞机投水的计算流体力学仿真计算结果,采用纸杯地面布阵的方法进行落水质量采集,综合数值模拟和线性插值等数学方法,给出了适用于大型水陆两栖飞机投水任务系统性能评估的试验矩阵方案和投水精度评估的具体方式,并通过与国外特定型号的投放试验数据绘图结果的比对,验证了测量方法的有效性。
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彭冉
王晨昱
关键词 计量学密度测量;杯格法;投水;精度评估    
Abstract:Based on the diffusion characteristics of water body and the requirement of engineering test, a measuring method of quantitative ground adhesion characteristics of fire extinguishing aircraft was designed. This method mainly includes three aspects: test equipment for ground data acquisition, matrix layout and accuracy evaluation. Considering the limitation of engineering test cost, the CFD simulation results of aircraft water delivery were presented. The paper cup ground array method was used to collect the falling water quality, and the mathematical methods such as numerical simulation and linear interpolation were synthesized. To evaluate the accuracy of water delivery for large amphibious aircraft, an experimental matrix scheme and a specific method were presented. The validity of the measurement method was verified by comparing the results of the test data drawn with foreign specific models.
Key wordsmetrology    density measurement    cup lattice method    water injection    accuracy evaluation
收稿日期: 2019-01-22      发布日期: 2020-12-08
PACS:  TB933  
基金资助:彭冉(1993-), 女, 陕西商南人, 中国飞行试验研究院硕士研究生, 主要研究方向为飞行器环境控制,人机工效及生理心理参数识别。Email: nuaa_pr@163.com
通讯作者: 王晨昱(1995-), 女, 陕西西安人, 中国飞行试验研究院计量师, 主要从事计量技术工作。Email: 18261932618m0@sina.cn     E-mail: 18261932618m0@sina.cn
引用本文:   
彭冉,王晨昱. 灭火飞机投放试验地面附着密度测量方法研究[J]. 计量学报, 2020, 41(12): 1510-1515.
PENG Ran,WANG Chen-yu. Study on Measurement Method of Ground Adhesion Density of Fire Extinguishing Aircraft Launching Test. Acta Metrologica Sinica, 2020, 41(12): 1510-1515.
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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2020.12.11     或     http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2020/V41/I12/1510
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