某型飞机弹射座椅穿盖弹射试验与数值模拟  

Test and Numerical Simulation of Through Canopy Ejection for Aircraft

作　　者：王一丁[1] 童明波[1] 闫家益[1] 潘雄[1] 

机构地区：[1]南京航空航天大学飞行器先进设计技术国防重点学科实验室,南京210016

出　　处：《南京航空航天大学学报》2013年第3期336-340,共5页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：通过某型飞机弹射座椅穿盖弹射火箭滑车试验,研究了舱盖在穿盖弹射中的破裂形式。在试验研究的基础上,进行了数值模拟,利用PCL语言对MSC.PATRAN进行二次开发,实现参数化建模。采用非线性有限元方法,通过瞬态动力学软件MSC.Dytran仿真得到了人椅系统在穿盖出舱过程中的过载及舱盖的破裂效果,与试验数据对比吻合较好,验证了模型的准确性。在此基础上,以VC及OpenCASCADE为工具,开发了通用性的飞机座椅弹射仿真平台,该平台具有一定的工程应用价值。The rupture mode of canopy during through canopy ejection is discussed via rocket sled for an aircraft. Based on the investigation, numerical simulation is carried out. Parametric modeling is accom- plished by secondary development of MSC. PATRAN using PCL. The overload of seat-man system and the rupture mode of canopy are simulated by MSC. Dytran, a general-purpose explicit nonlinear transient dynamic finite element code. The agreement between the simulation results and the test data proves the effectiveness of the simulation model. A general platform for analyzing and simulating the ejection process is developed by the use of VC and OpenCASCADS. The platform is helpful for the design and modification of aircraft canopy and ejection seat.

关 键 词：动力学分析 穿盖弹射 参数化建模 二次开发 

分 类 号：V215.2[航空宇航科学与技术—航空宇航推进理论与工程]