某型飞机座舱盖有限元模型分析及验证

Analyses & Validation of an Aircraft Cockpit Canopy Finite Element Model

采用PATRAN建立了某型飞机座舱盖有限元模型,用多点约束模拟玻璃边缘与骨架及弧框之间的软连接。通过NASTRAN计算后得到座舱盖有机玻璃上的应力分布,确定了座舱盖的危险部位,并通过了试验验证。

＂PATRAN＂ is used to create a canopy FEM for an aircraft using MPC to simulate the flexible attachment between plexiglass and frame. Through ＂NASTRAN＂ calculation, the stress distribution on the canopy plexiglass is obtained and the critical part of the canopy is determined. The test validation is conducted.