Airplane fatigue load designing method

• Main Authors: WANG WENZHUO, DENG LIDONG, LI JUNHUA, NIE PENGFEI, LI RONGKE, ZONG NING, ZHAO ZHUOLIN, PEI ZHIGANG
• Format: Patent
• Language: English
• Published: 03.06.2015
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention belongs to the field of airplane load designing and relates to an airplane fatigue load designing method. The airplane fatigue load designing method is characterized by including the following steps: firstly, determining a flight mission, namely dividing the flight mission into training flight and an airline flight, and decomposing in a detailed manner to acquire flight mission section; secondly, determining a load-bearing form, namely dividing the load-bearing form into maneuvering condition and gust condition; thirdly, determining a load calculation state, namely determining the load calculation state according to the flight mission section and the load-bearing form within a flight envelope range; fourthly, performing fatigue load calculation, namely building an aerodynamic force calculation model and an aerodynamic/structural coupling model, and using a structural finite element model for fatigue load calculation to acquire fatigue load. The airplane fatigue load designing method has the advantages that a designing process is created, so that standardized designing of the fatigue load is realized.