![]() ![]() The test shows that the new scheme can also change the more dangerous state into a safe state. The feasibility of the new separation scheme is proved by wind tunnel test. #Force of ram pressure free#The wind tunnel free drop test technique with lateral jet is established, which can ensure that there is no support interference in the motion process of the store and more truly simulate the motion of the store. The jet ensures that the store is continuously subjected to down head moment during separation, so as to ensure safe separation. This study shows that comparatively simple shock tunnel experiments offer a comprehensive high-fidelity analysis of the interbody forces of complex multibody structures.Īimed at the problem of store separation from internal cavity, this paper innovatively puts forward a separation scheme of using lateral jet to assist store safe separation. Although no aeroheating was simulated in this study, the separation of the large segments of the ISS might not be driven by the mechanical forces alone. While the resulting forces are significant, it is shown that these forces are significantly smaller than the yield strength of structural materials. The forces were then scaled from testing to flight, extrapolated along a trajectory path, and transformed into spacecraft internal stress. A comparison of the experimental and simulated flowfield shows a reasonable agreement in shock structure and resulting forces. The experimental situation was simulated using the eilmer4 computational fluid dynamics code. ![]() A 3D positional analysis tracked the bodies separately. A high-speed schlieren setup was used to record the movement of the multibody free-flight models. This paper marks the first approach to the experimental testing of complex geometric models coupled with a ground-to-flight scaling of the resulting internal stress. In this study, experiments were conducted in an impulse facility to determine the aerothermodynamic forces that apply to models of three components from the ISS. ![]() Therefore, based on a combined experimental and numerical analysis of the reentry of the International Space Station (ISS), loads at the module connections have been assessed. The break-up scenario at high altitude drives the ground impact area for parts surviving the reentry. This paper shows new findings for the break-up of large spacecraft during reentry into Earth’s atmosphere. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |