| 摘要 |
An electromagnetic rheological ("EMR") fluid ( 18 ) broadly includes a conducting medium ( 22 ) and a plurality of micronparticles ( 24 ) suspended in the medium ( 22 ). Each of the micronparticles ( 24 ) includes a magnetically permeable core ( 26 ), an electrically insulating coating ( 28 ) surrounding the core ( 26 ), and a conductive winding ( 30 ) at least partially wound around the core ( 26 ) so that the coating ( 28 ) is disposed between the winding ( 30 ) and the core ( 26 ). An apparatus ( 10 ) constructed in accordance with a preferred embodiment of the present invention broadly includes a deformable membrane ( 12 ), a pair of polar opposed plates ( 14 and 16 ) coupled to the membrane ( 12 ), the EMR fluid ( 18 ) filling the membrane ( 12 ) and being in communication with a current source ( 20 ). Current flowing through adjacent windings ( 30 ) induces magnetic fields in the corresponding micronparticles ( 24 ) that mutually draw the adjacent micronparticles ( 30 ) causing them to move together into a north pole-south pole alignment.
|
