弹射座椅稳定伞高速风洞动态测力试验研究

Investigation on dynamic force tests for the stabilizing parachute of the ejection seat in high speed wind tunnel

为了测试弹射座椅稳定伞在高速气流中的动态特性,在1.2m×1.2m跨、超声速风洞(FL 24)进行了稳定伞高速风洞动态测力试验。笔者叙述了试验方法,并给出了典型试验结果,包括稳定伞在试验M=0.65±0.04时的气动特性、进入自转状态的时间t自转以及在试验M=1.14时的强度测试结果等。试验结果表明,稳定伞的材料、设计及工艺是可行的,试验方法是成功的。

In order to test the dynamic characteristics of the stabilizing parachute of the ejection seat in high speed flow, dynamic force tests for the stabilizing parachute have been conducted in 1.2m×1.2m high speed wind tunnel of CARDC. This paper describes the test method and gives the test results including aerodynamic characteristics of the stabilizing parachute at M=0.65±0.04,the time for the stabilizing parachute to begin rotating,and strength test result at M=1.14.The test results show that the material,design and craft of the stabilizing parachute are applicable and the test method is successful.