| 摘要 |
<p>The present invention provides a system for simulating high altitude low opening skydiving from a helicopter using a numerical scheme and a controlling method thereof, wherein the method comprises: a second step where a helicopter rotor modeling module simulates a rotor blade using a blade element theory based a VBM scheme in order to model a helicopter rotor; a fourth step where a helicopter/skydiver interference analysis module analyzes a skydiving drag for each skydiving posture applied to the helicopter and the skydiver performing the high altitude low opening skydiving, outputs an analysis result and performs an interference analysis for an analyzing and modeling result of interference between the skydiver and a helicopter fuselage and a drag on the skydiver in the forward direction of a plane; and a fifth step where a skydiving trajectory modeling module inputs a drag coefficient for each posture and the interference analysis result between the fuselage and the skydiver, calculated in the fourth step, into a skydiving dynamic model to model a skydiving trajectory. The present invention executes a helicopter overall simulation tool (HOST), a computational fluid dynamics (CFD) tool, a skydiver body model, a VBM model for rotor modeling and a dynamic model for a trajectory analysis to perform the simulation for the high altitude low opening skydiving from helicopter, thereby clearly checking various characteristic changes of the helicopter according to high altitude low opening and reflecting them in manufacturing the helicopter by easily analyzing a complex helicopter motion and surrounding flow field and a skydiving trajectory so it can easily assure design stability of the helicopter.</p> |
