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Frequency Characteristics of Vibrational Tube in Measurement System of Vibration Fuel Density


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Frequency Characteristics of Vibrational Tube in Measurement System of Vibration Fuel Density
SUN Jian-hongYANG Lu
College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China
density sensor fuel density vibrational tube cylindrical shell
In view of the frequency characteristics of the vibrational tube in the measurement system of the vibration fuel density,this paper analyses the mechanism of the vibrational model of the cylindrical shell by ANSYS and compares the differences of the vibrational frequency in different constrained conditions.The results show: the axial wave number m=1,transverse n=3 or 4 are suitable,the frequency differences under different boundary conditions are three times and the frequency ranges from 2 to 10 kHz in design conditons by comparing two cases with free or bound ends of tube.The optimized ranges help to carry out the vibration and make airplane structures avoid disturbing frequency.It is of significant application in the engineering design of the measurement system of vibrational fuel density.


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Last Update: 2012-12-05