Review of smart materials actuator and flexible skin for morphing aircraft
Morphing aircraft can change its aerodynamic configurations to obtain optimized aerodynamic perfor-mance.Smart material actuator and flexible skin are the key technologies of morphing aircraft.Smart materials have the advantages of light weight,simple structure,and large driving force.Flexible skin can meet the requirements of large deformation and withstand local aerodynamic loads,both of which have very good application prospects.In this paper,the research of actuators made of shape memory alloys,piezoelectric materials and magneto strictive materials is introduced.The development of flexible skin based on material elasticity and structure design is ana-lyzed.The related research issue and interests are summarized and prospected.