Study on water shock load characteristics of fixed-wing aircraft cross-sectional flow structure
Aiming at the V-shaped and cylindrical winding structures commonly used in land-based air-craft,the model water load test was carried out,and the load characteristics of two different cross-sectional flow winding structures were compared and analyzed.The results show that the V-shaped flow around structure has good load characteristics,the pressure peak change period is long and the peak value is rela-tively small during the watering process,the half cycle of the peak is all in 0.1 s,the pressure position and velocity have obvious effects on the peak,which is close to the symmetrical plane position,and the larger the landing speed,the greater the pressure peak.The cylindrical flow around structure has the characteris-tics of large pressure peak and short action cycle,and the pressure peak at the symmetrical surface position under the same conditions is 8.7 times the maximum pressure of the V-shaped flow structure,and the half cycle is only about 0.5 ms.
fixed-wing aircraftstructure sectionditchingwater loadmodel test
万方数据
维普
