초록 ▼

A laminated structural device has the ability to change shape, position and resonant frequency without using discrete motive components. The laminate (10) may be a combination of layers (14,16) of a piezoelectrically active, non-conductive matrix material as shown in FIG. 1. A power source (22) sele

A laminated structural device has the ability to change shape, position and resonant frequency without using discrete motive components. The laminate (10) may be a combination of layers (14,16) of a piezoelectrically active, non-conductive matrix material as shown in FIG. 1. A power source (22) selectively places various levels of charge an electrically conductive filaments (18,20) imbedded in the respective layers to produce various configurations shown in FIGS. 2 to 5 in a predetermined manner. The layers may be electrically conductive having imbedded piezoelectrically active filaments. A combination of layers of electrically conductive material may be laminated to layers of piezoelectrically active material.

대표청구항 ▼

A laminated structural device having the ability to change shape, position and resonant frequency without using discrete motive components comprising piezoelectrically active composites laminated together, each of said piezoelectrically active composites containing at least one electrically conducti

A laminated structural device having the ability to change shape, position and resonant frequency without using discrete motive components comprising piezoelectrically active composites laminated together, each of said piezoelectrically active composites containing at least one electrically conductive member, and means for selectively placing a predetermined level of charge in said electrically conductive member thereby inducing a distortion in each of said piezoelectrically active composites whereby the device is deformed in a controlled manner.