Aircraft fuel consumption obtaining method
An acquisition method and technology of fuel consumption, applied in measuring devices, relative volume flow measurement, liquid/fluid solid measurement, etc., can solve the problems of strict weight index, strict cost control, and small installation space of small aircraft, and achieve lightening of small Effects of Aircraft Weight and Cost Reduction
Inactive Publication Date: 2019-12-03
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
[0003] In order to solve the problems in the prior art that the calculation of the fuel quantity by the fuel level sensor or the turbine flow sensor cannot meet the small installation space of the small aircraft, the strict weight index, and the strict cost control, the invention provides a method for obtaining the fuel consumption of the aircraft method, the method realizes the calculation of the fuel quantity of the small aircraft without increasing the fuel quantity measuring sensor, reduces the weight of the small aircraft, and reduces the cost of the small aircraft
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[0019] The technical solutions for realizing the object of the present invention are further described below through specific examples. It should be noted that the technical solutions claimed in the present invention include but are not limited to the following examples.
[0020] The invention discloses a method for obtaining the fuel consumption of an aircraft, which realizes the calculation of the fuel quantity of a small aircraft without increasing the fuel quantity measuring sensor, reduces the weight of the small aircraft, and reduces the cost of the small aircraft. Specific steps are as follows:
[0021] 1) Establish engine fuel consumption performance database
[0022] The fuel consumption flow per unit time of the engine is related to the four parameters of flight altitude, flight Mach number, atmospheric temperature and engine speed. Once the four parameters are determined, the fuel consumption flow of the engine per unit time is also determined;
[0023] The engine ...
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The invention discloses an aircraft fuel consumption obtaining method and belongs to the field of an aircraft fuel system. The method comprises the following steps: through repeated ground tests, establishing an engine oil consumption performance database with flight height, flight Mach number, atmospheric temperature and engine rotating speed as independent variables and engine oil consumption flow as a dependent variable, and storing the engine oil consumption performance database in an oil quantity calculation computer; obtaining independent variable parameters once every the same time interval; querying the engine oil consumption flow corresponding to the parameters obtained each time in the engine oil consumption performance database; and multiplying the queried engine oil consumptionflow by the interval time in parameter obtaining to obtain engine oil consumption in the interval time, and adding up the engine oil consumption in all interval time to obtain total aircraft oil consumption. On the premise of not adding an oil quantity measuring sensor, the method realizes calculation of oil consumption of a small aircraft, reduces the weight of the small aircraft and reduces thecost of the small aircraft.
Description
technical field [0001] The invention relates to the technical field of aircraft fuel systems, in particular to a method for obtaining aircraft fuel consumption. Background technique [0002] The fuel quantity of the fuel system on the aircraft is an important data for the safe flight of the aircraft, which needs to be monitored in real time. The calculation of fuel quantity is usually realized in the following way: install a fuel level sensor in the fuel tank or a turbine flow sensor on the fuel supply pipeline to measure the oil level signal or fuel flow rate signal, and then calculate the fuel quantity through the fuel quantity calculation computer . The above two calculation methods of fuel quantity are widely used on medium and large aircraft, but on small aircraft with light weight, the installation space of the sensor is small, or even no installation space, and the weight index of small aircraft is strictly required. In addition, small aircraft must also consider co...
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IPC IPC(8): G01F9/00
CPCG01F9/008
Inventor 练夏林唐克兵程家林何敏
Owner CHENGDU AIRCRAFT INDUSTRY GROUP