摘要:
A reconfigurable fixture device system, including: a base member; a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece; an activation device in operative communication with the shape memory material; a controller in operable communication with at least one of the reconfigurable pad, the activation device, and the base member; a plurality of sensors for sensing a parameter associated with at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece, wherein the plurality of sensors is in operable communication with the controller; and an actuator in operable communication with the controller and the at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece.
摘要:
A fixture device generally includes a base member, a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece, and an activation device in operative communication with the shape memory material.
摘要:
A process generally includes contacting a surface of at least one workpiece with a reconfigurable pad of a fixture device, wherein the reconfigurable pad comprises a shape memory material configured to conform to the surface of the at least one workpiece, and fixturing the contacted workpiece.
摘要:
A vehicle member generally comprises a thermally activated shape memory material in operative communication with a pyrotechnic device. The pyrotechnic device is effective to thermally change a dimension, a shape, an orientation change, an elastic modulus property change or a combination comprising at least one of the foregoing properties of the shape memory material, which results in a structural and/or mechanical change to the vehicle member.
摘要:
Disclosed herein is a strut assembly 10 comprising a housing 2; a piston 3 in slideable communication with the housing 2; an actuator 16 in operative communication with the piston 3 and/or the housing 2; wherein the actuator 16 is adapted to change the location of the housing 2 from a first position to a second position and/or change in a stroke length of the piston 3. Disclosed herein too is a method for changing the strut length of a strut assembly 10 comprising activating an actuator 16 that is in operative communication with a housing 2 or a piston of the strut assembly 10; and changing in the location of the housing 2 from a first position to a second position and/or changing a stroke length of the piston 3.
摘要:
A door system includes a structural member and a door that is movably mounted with respect to the structural member for movement between an open position and a closed position. A spring is mounted with respect to the structural member or the door and being sufficiently positioned to bias the door toward its open position when the door is in its closed position. Active material based actuators may selectively compress the spring prior to door closure to minimize door closing effort.
摘要:
A tunable property bracket for a vehicle body, includes a support member comprising a first active material configured to provide support for static and dynamic loads during normal operation of the vehicle body, wherein the first active material undergoes a change in a property upon exposure to an activating condition during a loading event or a sensed loading event, wherein the change in the property is effective to provide a load bearing capacity change to the support member.
摘要:
Reconfigurable structures include at least one hub, a plurality of arms attached to and extending from the at least one hub, wherein at least a portion of the arm and/or hub defines a node and is formed of an active material. The active material is adapted to change at least one attribute in response to an activation signal, wherein the change in the at least one attribute changes a modulus property, a shape orientation, or a combination of the modulus property change and the shape orientation change to the active material portion. The plurality of arms and at least one hub can form a reconfigurable opening for attaching and releasing a member. Alternatively, the plurality of arms and/or hub can further include a connector for attaching an additional structure. Also disclosed herein are methods for selectively reconfiguring a structure.
摘要:
A fixture device generally includes a base member, a reconfigurable pad comprising a shape memory material configured to selectively conform to a surface contour of a workpiece, and a thermoelectric unit in operative communication with the shape memory material of the reconfigurable pad. A process for operating a fixture device includes passing a current in a first direction through a thermoelectric unit in operative communication with a reconfigurable pad in an amount effective to heat a shape memory material therein to or above a shape setting temperature, contacting a surface of a workpiece with the reconfigurable pad, cooling the shape memory material below the shape setting temperature, and fixturing the workpiece with the fixture device.
摘要:
Disclosed herein is a strut assembly 10 comprising a locking device 11 in operative communication with a piston 3, wherein the locking device 11 comprises an active material operative to resist motion of the piston 3 in response to an activation signal. Disclosed herein too is a method of operating a strut assembly 10 comprising displacing a suspended body 60 in mechanical communication with a piston 3; activating an active material in operative communication with the piston 3; and controlling the motion of the suspended body 60.