Arrangement and method for influencing and/or detecting a dynamic or static property of a support structure

Patent metadata

Field	Value
Publication number	US-10955384-B2
Application number	US-201615757648-A
Country	US
Kind code	B2
Filing date	Aug 29, 2016
Priority date	Sep 3, 2015
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

An arrangement and a method are described for influencing and/or detecting a dynamic or static property of a support structure which has a support structure surface, with at least one planar first actuator element that includes at least one electrically and/or magnetically activated transducer material, and a fiber composite material which joins the first actuator element indirectly or directly to the support structure surface in a planar, which has at least one first fiber layer and a curable matrix. The first fiber layer at least partially covers the first actuator element resting indirectly or directly on the support structure surface, protrudes beyond the first actuator element on both sides along at least a spatial direction running parallel to the support structure surface, and permanently adheres directly to at least some areas of the support structure surface at least in the regions protruding beyond the first actuator element by means of the curable matrix.

First claim

The invention claimed is:

1. An arrangement for at least one of influencing or detecting a dynamic or static property of a support structure having a support structure surface, with at least one planar first actuator, that includes at least one of an electrically or a magnetically activated transducer, and a fiber composite joining the at least one planar first actuator in a plane to the support structure surface, which has at least a first fiber layer and a curable matrix,
the first fiber layer
a) at least partially covers the at least one planar first actuator resting on the support structure surface;
b) protrudes beyond the at least one first actuator on both sides along at least a spatial direction running parallel to the support structure surface; and
c) the curable matrix permanently adhering to at least areas of the support structure surface at least in regions protruding beyond the first actuator; and wherein
the arrangement comprises:
a second layer, including at least one second actuator and a second fiber layer which is permanently joined in a plane to the first fiber layer covering the at least one planar first actuator; and wherein
the second fiber layer at least partially covers the at least one second actuator, protrudes on both sides thereof beyond both of the at least one second actuator and the first fiber layer at least in a spatial direction extending parallel to the support structure surface; and
the curable matrix at least in regions adheres permanently directly to the support structure surface in areas protruding beyond the at least one second actuator and the first fiber layer.

2. The arrangement according to claim 1 , comprising:
additional layers each comprising at least an actuator and a fiber layer which are permanently joined in a plane to the second fiber layer and an area of each fiber layer of an additional layer adheres permanently to the support structure surface using the curable matrix.

3. The arrangement according to claim 2 , wherein:
the first fiber layer covering the at least one planar first actuator provide a permanent, planar composite including the curable matrix bonded with the at least one first planar first actuator so that the at least one planar first actuator is directly connected with the support structure surface along the first fiber layer.

4. The arrangement according to claim 2 , wherein
the first fiber layer comprises a fiber scrim or fiber fabric layer.

5. The arrangement according to claim 2 , wherein the at least one transducer of the at least one planar first actuator comprises at least one of a piezoelectric, a piezoceramic, magnetostrictive materials, electrostrictive ceramics, or a shape memory alloy.

6. The arrangement according to claim 2 , wherein all actuators in the layers are identical in shape and size and are arranged in alignment for stacking one above the other.

7. The arrangement according to claim 1 , wherein:
the first fiber layer covering the at least one first actuator provides a permanent, planar composite including the curable matrix bonded with the at least one planar first actuator is directly connected with the support structure surface along the first fiber layer.

8. The arrangement according to claim 7 , wherein:
the fiber layer and the at least one planar actuator of each layer form a permanent, planar composite including the curable matrix bonded with the at least one planar actuator which is connected to the support structure surface along the fiber layer.

9. The arrangement according to claim 8 , comprising:
the first fiber layer including a planar cutout conforming to shape to the planar first actuator which is defined by a peripheral border of the planar first actuator; and wherein
the planar first actuator is positioned in the cutout along the first fiber layer and regions of each first fiber layer adhere permanently to the support structure by using the curable matrix.

10. The arrangement according to claim 8 , wherein
the first fiber layer comprises a fiber scrim or fiber fabric layer.

11. The arrangement according to claim 8 , wherein the at least one transducer of the at least one planar first actuator comprises at least one of a piezoelectric, a piezoceramic, magnetostrictive materials, electrostrictive ceramics, or a shape memory alloy.

12. The arrangement according to claim 7 , comprising:
the first fiber layer including a planar cutout conforming to shape to the planar first actuator which is defined by a peripheral border of the planar first actuator; and wherein
the planar first actuator is positioned in the cutout along the first fiber layer and regions of each first fiber layer adhere permanently to the support structure by using the curable matrix.

13. The arrangement according to claim 7 , comprising:
the first fiber layer including a planar cutout conforming to shape to the planar first actuator which is defined by a peripheral border of the planar first actuator; and wherein
the planar first actuator is positioned in the cutout along the first fiber layer and regions of each first fiber layer adhere permanently to the support structure by using the curable matrix.

14. The arrangement according to claim 13 , wherein
the first fiber layer comprises a fiber scrim or fiber fabric layer.

15. The arrangement according to claim 7 , wherein
the first fiber layer comprises a fiber scrim or fiber fabric layer.

16. The arrangement according to claim 7 , wherein the at least one transducer of the at least one planar first actuator comprises at least one of a piezoelectric, a piezoceramic, magnetostrictive materials, electrostrictive ceramics, or a shape memory alloy.

17. The arrangement according to claim 1 , comprising:
the first fiber layer including a planar cutout conforming to shape to the planar first actuator which is defined by a peripheral border of the planar first actuator; and wherein
the planar first actuator is positioned in the cutout along the first fiber layer and regions of each first fiber layer adhere permanently to the support structure by using the curable matrix.

18. The arrangement according to claim 1 , wherein
the first fiber layer comprises a fiber scrim or fiber fabric layer.

19. The arrangement according to claim 1 , wherein the at least one transducer of the at least one planar first actuator comprises at least one of a piezoelectric, a piezoceramic, magnetostrictive materials, electrostrictive ceramics, or a shape memory alloy.

20. A method of use of the arrangement of claim 1 , comprising:
influencing vibration of the support structure by actuating at least one of the actuators.

21. A method use according to claim 20 , wherein support structure is in one of automotive manufacturing, aviation, mechanical engineering, or architecture.

Assignees

• Fraunhofer Ges Forschung

Inventors

• Mayer Dirk
• Salloum Rogério

Classifications

• G01N1/00

  Sampling; Preparing specimens for investigation · CPC title

• B32B2307/206

  Insulating · CPC title

• B32B2250/20

  All layers being fibrous or filamentary · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B2260/023

  Two or more layers · CPC title