北京航空航天大学学报2026，Vol.52Issue(5)：1467-1475,9.DOI:10.13700/j.bh.1001-5965.2024.0108
基于流体单位质量力的飞机燃油测量算法
Aircraft fuel quantity measurement algorithm based on fluid unit mass force
王晓阳 1任恒英 1饶波1
作者信息
- 1. 航空工业第一飞机设计研究院机电系统设计研究所,西安 710089
- 折叠
摘要
Abstract
In order to accurately measure the remaining fuel in the aircraft fuel tank,the aircraft fuel quantity measurement algorithm based on fluid unit mass force(AFUMF)is proposed.The unit normal vector of the fuel surface in the aircraft-body coordinate frame can be directly determined using the three-axis accelerometer's output signals as the equivalent of fluid unit mass force.The fuel quantity database can then be created and utilized for the fuel volume calculation by combing the point coordinates obtained from the fuel probes'height signal to determine the directed distance from origin as the fuel surface height.A CATIA secondary development program is developed to evaluate the error distribution of least mean square(LMS)and AFUMF by using the Monte-Carlo analysis method.The result shows AFUMF will alleviate the fuel probes'error and only 1 valid probe is needed,on the contrary,LMS will amplify the fuel probes'error and at least 3 valid probes are required.Using a six-degree-of-freedom platform,a fuel tank test item was constructed to validate AFUMF.The test findings indicate that,under steady conditions,the maximum error is±0.5%full fuel tank quantity.关键词
飞机燃油测量/燃油测量数据库建立/燃油体积解算/燃油测量误差评估/燃油测量系统试验Key words
aircraft fuel quantity measurement/fuel quantity measurement database establishing/fuel volume calculation/error evaluation of fuel quantity measurement/fuel quantity measurement system test分类
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王晓阳,任恒英,饶波..基于流体单位质量力的飞机燃油测量算法[J].北京航空航天大学学报,2026,52(5):1467-1475,9.
