On exploring suitable micro-actuator for aerodynamic control of delta wing

Two possible types of micro-actuators for controlling delta wing are found: micro balloon and permalloy magnetic. This paper aims to compare these two types and decide which is more worthy of a further R and D effort into. The reasons for selecting the micro balloon actuator are presented. The permalloy magnetic actuator is analysed. We find that the contradiction between its flexibility and strength is difficult to reconcile and that it may not function due to the dust. Thus we deem that the permalloy magnetic actuator is not quite suitable. So the micro-balloon actuator is analysed: the analysis of membrane material of balloon, micro-fabrication and structural dimensions does not uncover any particularly difficult problem; CFD (computational fluid dynamics) simulations, carried out about micro-balloon actuator's influence on vortex and pressure distribution on the upper surface of delta wing, show that its control capability is acceptable. Thus we deem that the micro-balloon actuator is more worthy of a R and D effort.