The method for analyzing the static aeroelastic deformation of flexible skin under the air loads was developed. The effect
of static aeroelastic deformation of flexible skin on the aerodynamic characteristics of aerofoil and the design parameters
of skin was discussed. Numerical results show that the flexible skin on the upper surface of trailing-edge will bubble
under the air loads and the bubble has a powerful effect on the aerodynamic pressure near the surface of local
deformation. The static aeroelastic deformation of flexible skin significantly affects the aerodynamic characteristics of
aerofoil. At small angle of attack, the drag coefficient increases and the lift coefficient decreases. With the increasing
angle of attack, the effect of flexible skin on the aerodynamic characteristics of aerofoil is smaller and smaller. The
deformation of flexible skin becomes larger and larger with the free-stream velocity increasing. When the free-stream
velocity is greater than a value, both of the deformation of flexible skin and the drag coefficient of aerofoil increase
rapidly. The maximum tensile strain of flexible skin is increased with consideration of the static aeroelastic deformation.
As a novel bionic actuator, pneumatic artificial muscle has high power to weight ratio. In this paper, the experimental
setup to measure the static output force of pneumatic artificial muscle was designed and the relationship between the
static output force and the air pressure was investigated. Experimental result shows the static output force of pneumatic
artificial muscle decreases nonlinearly with increasing contraction ratio. A variable camber wing based on the pneumatic
artificial muscle was developed and the variable camber wing model was manufactured to validate the variable camber
concept. Wind tunnel tests were conducted in the low speed wind tunnel. Experimental result shows that the wing
camber increases with increasing air pressure.
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