The invention discloses a strut type undercarriage drop test load measuring method based on a strain method. The strut type undercarriage drop test load measuring method comprises the following steps:step 1, selecting sensitive profiles for measuring a vertical load and a course load; step 2, pasting strain gauges on the selected profiles; and step 3, calculating a undercarriage drop test load according to a strain measurement result. According to the invention, the influence of the inertial load of the force measuring platform can be effectively eliminated; the impact load generated by the drop test and uploaded to the undercarriage structure can be obtained more accurately; as a replacement or auxiliary method for strut type undercarriage drop test load measurement, the disclosed methodis simple and easy to implement and has certain innovativeness; the size of the load uploaded to the undercarriage body structure can be reflected truly; the influence of the inertia force of the platform is prevented; and the method has certain practicability.
本发明公开了一种基于应变法的支柱式起落架落震试验载荷测量方法,包括步骤1:选定测量垂向载荷和航向载荷的敏感剖面;步骤2:在选定的敏感剖面上黏贴应变片;步骤3:由应变测量结果计算起落架落震试验载荷,本发明可以有效剔除掉测力平台惯性载荷的影响,更精准的得到落震试验产生并上传到起落架结构上的冲击载荷,作为一种支柱式起落架落震试验载荷测量的替代或者辅助方法,该方法简单易行,具有一定的创新性,而且能真实反映上传到起落架本体结构上的载荷大小,且不受平台惯性力的影响,具有一定的实用性。
Strut type undercarriage drop test load measuring method based on strain method
一种基于应变法的支柱式起落架落震试验载荷测量方法
2020-05-08
Patent
Electronic Resource
Chinese
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / 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 / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |
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