The invention provides a D-shaped beam composite material blade root section fatigue test method and system, and belongs to the technical field of helicopter structural strength design, and the method comprises the steps: carrying out the pasting and calibration of a D-shaped beam blade root section test piece; determining a static load and a dynamic load of a fatigue test; then carrying out a fatigue test on the root section of the D-shaped beam paddle; the method for applying the flapping bending moment static load and the shimmy bending moment static load in the D-shaped beam paddle fatigue test is provided, the theoretical static load is covered with the test static load, the problem caused by static load correction is solved, and the fatigue performance of the root section of the D-shaped beam paddle can be effectively assessed.
本发明提供一种D形梁复合材料桨叶根部段疲劳试验方法及系统,属于直升机结构强度设计技术领域,所述方法包括:进行D形梁桨叶根部段试验件的贴片与标定;再确定疲劳试验静载荷和动载荷;之后实施D形梁桨叶根部段疲劳试验;本发明提出了在D形梁桨叶疲劳试验中施加挥舞弯矩和摆振弯矩静载荷的方法,通过试验静载荷覆盖理论静载荷,解决了静载修正带来的问题,能够有效考核D形梁桨叶根部段的疲劳性能。
Fatigue test method and system for root section of D-shaped beam composite material paddle
一种D形梁复合材料桨叶根部段疲劳试验方法及系统
29.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / 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 |
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