Active tailoring of adaptive lifting surfaces for aeroelastic applications

This paper discusses the development and use of an effective finite element analysis procedure to examine integrated anisotropic piezoelectric actuators for aeroelastic applications where it is essential that torsion and bending be controlled independently of one another. The finite element model consists of three-dimensional isoparametric solid elements (bricks) that allow modeling of tailored piezoelectrics with skewed actuator/sensor axes. This scheme also allows the representation of an anisotropic host structure and can account for material and stacking geometry through the element thickness. Using this finite element representation, it is shown that anisotropic piezoelectric actuators can create sufficient twisting and bending to control aerodynamic loads on a wing, although aerodynamic loads are not included in this discussion.

[1]  Horn-Sen Tzou,et al.  Theoretical analysis of a multi-layered thin shell coupled with piezoelectric shell actuators for distributed vibration controls , 1989 .

[2]  H. Allik,et al.  Vibrational response of sonar transducers using piezoelectric finite elements , 1974 .

[3]  E. Crawley,et al.  Use of piezoelectric actuators as elements of intelligent structures , 1987 .

[4]  T. Bailey,et al.  Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam , 1985 .

[5]  C. I. Tseng,et al.  Distributed piezoelectric sensor/actuator design for dynamic measurement/control of distributed parameter systems: A piezoelectric finite element approach , 1990 .

[6]  E. Fukada,et al.  Piezoelectricity and ferroelectricity in polyvinylidene fluoride , 1981 .

[7]  Kenneth B. Lazarus,et al.  Induced strain actuation of isotropic and anisotropic plates , 1991 .

[8]  Francis C. Moon,et al.  Laminated piezopolymer plates for torsion and bending sensors and actuators , 1989 .

[9]  Craig A. Rogers,et al.  Modeling of Finite-Length Spatially-Distributed Induced Strain Actuators for Laminate Beams and Plates , 1991 .

[10]  J. Tani,et al.  Position Control of a Flexible Arm Using Piezoelectric Bimorph Cells , 1991 .

[11]  Fu-Kuo Chang,et al.  Analysis of Laminated Composites Containing Distributed Piezoelectric Ceramics , 1991 .

[12]  T. P. Pawlak,et al.  Three-Dimensional Finite Elements for Analyzing Piezoelectric Structures , 1986, IEEE 1986 Ultrasonics Symposium.