The invention discloses a linear sensor array-based aircraft ground sonic boom test precision improvement method, which belongs to the technical field of aircraft flight tests and is characterized in that ground sonic boom measurement under the condition of constant-speed linear flight of an aircraft is carried out at a time by adopting a sensor array arranged in a linear shape; and calculating the maximum value and the minimum value in the acoustic explosion overpressure time history measured by each sensor, respectively carrying out arithmetic averaging on the maximum values and the minimum values in the acoustic explosion signal time history of all the sensors, respectively obtaining the maximum overpressure measurement value and the minimum overpressure measurement value of the ground acoustic explosion, and completing the measurement test of the aircraft acoustic explosion. The method has the advantages that multiple flight measurements do not need to be carried out, measurement errors caused by unsatisfactory flight states, flight tracks, atmospheric conditions, ground environments and the like of aircrafts are reduced, the precision of ground acoustic explosion tests of the aircrafts is improved, the test cost is reduced, and the method is of great significance to design and development of supersonic aircrafts, research of acoustic explosion problems and the like.

    本发明公开了基于线性传感器阵列的飞机地面声爆测试精度提升方法,属于飞机飞行试验技术领域,该方法通过采用呈“一”字形布置的传感器阵列一次进行飞机匀速直线飞行条件下的地面声爆测量,并计算每个传感器测量的声爆逾压时间历程中的最大值和最小值,对所有传感器声爆信号时间历程中的最大值和最小值分别进行算术平均后,分别得到地面声爆的最大逾压测量值和最小逾压测量值,完成对飞机声爆的测量试验,不需要开展多次飞行测量,降低了飞机飞行状态、飞行航迹、大气条件、地面环境等的不理想导致的测量误差,提升了飞机地面声爆测试的精度,同时降低了试验成本,对超声速飞行器设计研制、声爆问题研究等具有重要意义。


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    Title :

    Airplane ground sonic boom test precision improving method based on linear sensor array


    Additional title:

    基于线性传感器阵列的飞机地面声爆测试精度提升方法


    Contributors:
    XU YUE (author) / SONG YAHUI (author) / QU LIXIA (author) / ZHAO YUANMING (author) / HAN SHUO (author) / ZHANG XIAOLIANG (author) / WANG YUHANG (author) / ZHANG YUELIN (author) / ZHONG MIN (author) / SONG GUOZHI (author)

    Publication date :

    2022-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen




    Prediction of Airplane Sonic-Boom Pressure Fields

    Carlson, Harry W. / McLean, F. Edward / Middleton, Wilbur D. | NTRS | 1965


    Prediction of airplane sonic-boom pressure fields

    Carlson, H. W. / Mc Lean, F. E. / Middleton, W. D. | NTRS | 1965


    Sonic boom loudness study and airplane configuration development

    BROWN, JESSICA / HAGLUND, GEORGE | AIAA | 1988