BIMORPH PIEZOELECTRIC ACTUATOR, AND VIBRATION/ACOUSTIC WAVE SHIELD CONSTRUCTION OF DOUBLE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a bimorph piezoelectric actuator superior in mechanical strength and reliability and the vibration/acoustic wave shield construction of a double structure.;SOLUTION: This is a bimorph piezoelectric actuator 1, where reinforcing plates 5 are jointed severally to both ends (4c) and (4d) at one end 4a at least in the longitudinal direction of a bimorph element 4. This is the vibration/ acoustic wave shield construction of a double structure, where one end 4a in longitudinal direction of a bimorph piezoelectric actuator 1 is fixed to the fixing member 22 fixed to the inner face a of either structure A facing the space 21 between two structures A and B arranged a specified interval apart in opposition, so that with respect to the face direction of the bimorph element 4 it is in parallel with the face direction of the two structures A and B, and moreover the other end 4b in longitudinal direction of the bimorph piezoelectric actuator 1 is fixed to the support member 23 fixed to an inner face b of the other structure B facing the space 21 so that it is freely rotatable about the axis parallel with respect to the face direction of the two structures A and B.;COPYRIGHT: (C)2000,JPO