摘要:
An actuator device providing an active surface. The actuator has a base (23) having at least one first electrostatic electrode mounted therein which is oriented for electrostatic cooperative action with an opposing electrostatic electrode in a cover (25) mounted above the first electrostatic electrode to define an enclosed cavity. The cover (25) has at least one second electrostatic electrode for cooperative electrostatic activation between the electrostatic electrodes. The cover (25) also has an outer surface forming the active surface. A power supply is operably connected to the electrostatic electrodes for causing the cooperative electrostatic activation. A quantity of fluid is contained within the cavity for pneumatically defining active surface conditions during cooperative electrostatic actuation. The cavity may be closed to provide a sealed cavity for movement of the fluid, either a gas or a liquid, during the cooperative electrostatic actuation, or it may be open to the atmosphere. The electrostatic electrodes may comprise a plurality of electrostatic electrodes arranged in a pattern to cause a predetermined change in the active surface. Various patterns may be used, such as bands, patches and regions. Also provided is control electronics in the base for controlling application of power from the power supply.
摘要:
An active user interface system (100) includes a gimbal assembly that is configured as a dual-input/single-output differential mechanism. The differential mechanism implements a speed reduction from the inputs of the differential mechanism (132, 134) to the output of the differential mechanism. Speed reduction enables the maximum drive torque that is supplied to the user interface about one rotational axis to be greater than the maximum drive torque that is supplied to the user interface about another, perpendicular axis.
摘要:
One example of an actuation system (100) includes a pneumatic muscle (102, 104) connected to a component (106) to be actuated. The system also includes an actuation member connected in series to the pneumatic muscle (102, 104) and valve (108) connected to the pneumatic muscle (102, 104) to control a pressure in the pneumatic muscle (102, 104). The system also includes a positioning mechanism (116) connected to the component (106) to control a movement of the component (106) and a controller (110) connected to the pneumatic muscle (102, 104), the valve (108), and the positioning mechanism (116), the controller (110) to control actuation of the component (106) by controlling the pressure in the pneumatic muscle (102, 104).
摘要:
One example of an actuation system (100) includes a pneumatic muscle (102, 104) connected to a component (106) to be actuated. The system also includes an actuation member connected in series to the pneumatic muscle (102, 104) and valve (108) connected to the pneumatic muscle (102, 104) to control a pressure in the pneumatic muscle (102, 104). The system also includes a positioning mechanism (116) connected to the component (106) to control a movement of the component (106) and a controller (110) connected to the pneumatic muscle (102, 104), the valve (108), and the positioning mechanism (116), the controller (110) to control actuation of the component (106) by controlling the pressure in the pneumatic muscle (102, 104).
摘要:
An actuator device controlling the shape of a flexible surface having a quasi-continuum in a plurality of locations. The device includes a plurality of individual cells arranged in an array for contact with the flexible surface. The cells comprise a cell body having an upper film portion and a lower film portion and an open central portion. The upper film portion is in contact with the flexible surface. A post is mounted in the open central portion and fixedly attached to the upper film portion and the lower film portion, the post defining a vertical axis of movement. The upper and lower film portions have electrodes mounted thereon respectively, positioned on the face of the upper and lower film portions and facing each other. A central diaphragm has electrodes on its outer surfaces and an open central portion surrounding the post. A power supply operably connected to the electrodes for causing selective cooperative electrostatic activation between them to move the post along the vertical axis to cause the upper film portion to move that portion of the flexible surface in which the upper film portion is in contact. In a preferred embodiment, the cell body has a circular cross section so that the post moves vertically upward and downward to raise or lower the portion of the flexible surface in contact with the upper film portion upon application of electrostatic potential between the electrodes.
摘要:
An actuator device providing an active surface. The actuator has a base (23) having at least one first electrostatic electrode mounted therein which is oriented for electrostatic cooperative action with an opposing electrostatic electrode in a cover (25) mounted above the first electrostatic electrode to define an enclosed cavity. The cover (25) has at least one second electrostatic electrode for cooperative electrostatic activation between the electrostatic electrodes. The cover (25) also has an outer surface forming the active surface. A power supply is operably connected to the electrostatic electrodes for causing the cooperative electrostatic activation. A quantity of fluid is contained within the cavity for pneumatically defining active surface conditions during cooperative electrostatic actuation. The cavity may be closed to provide a sealed cavity for movement of the fluid, either a gas or a liquid, during the cooperative electrostatic actuation, or it may be open to the atmosphere. The electrostatic electrodes may comprise a plurality of electrostatic electrodes arranged in a pattern to cause a predetermined change in the active surface. Various patterns may be used, such as bands, patches and regions. Also provided is control electronics in the base for controlling application of power from the power supply.
摘要:
A method includes receiving pump cycle location data (144) associated with a fluid power system (102) of an aircraft. The fluid power system (102) includes a plurality of pumps (104), including at least a first pump (106), a second pump (108), and a third pump (110). Based on the pump cycle location data (144) having a first value, the method includes activating the first pump (106) as a primary pump. Based on the pump cycle location data (144) having a second value, the method includes activating the second pump (108) as the primary pump. The method also includes activating the third pump (110) as a secondary pump when the fluid power system (102) is in a multiple-pump operating mode.
摘要:
Provided are mechanisms and processes for a pneumatic shaft positioning system (100). According to various examples, the pneumatic shaft positioning system includes a pyrotechnic valve (137) that is configured to control the flow of gas from a pressurized gas source (135) into a pressure chamber (109,111). The pressure chamber includes a first piston (113,115,117,119) that is slidably coupled to the pressure chamber. When gas from the pressurized gas source fills the pressure chamber, the piston is configured to slide through the pressure chamber and force a shaft (103) into a predetermined position.
摘要:
An active user interface system (100) includes a gimbal assembly that is configured as a dual-input/single-output differential mechanism. The differential mechanism implements a speed reduction from the inputs of the differential mechanism (132, 134) to the output of the differential mechanism. Speed reduction enables the maximum drive torque that is supplied to the user interface about one rotational axis to be greater than the maximum drive torque that is supplied to the user interface about another, perpendicular axis.
摘要:
An actuator device controlling the shape of a flexible surface having a quasi-continuum in a plurality of locations. The device includes a plurality of individual cells arranged in an array for contact with the flexible surface. The cells comprise a cell body having an upper film portion and a lower film portion and an open central portion. The upper film portion is in contact with the flexible surface. A post is mounted in the open central portion and fixedly attached to the upper film portion and the lower film portion, the post defining a vertical axis of movement. The upper and lower film portions have electrodes mounted thereon respectively, positioned on the face of the upper and lower film portions and facing each other. A central diaphragm has electrodes on its outer surfaces and an open central portion surrounding the post. A power supply operably connected to the electrodes for causing selective cooperative electrostatic activation between them to move the post along the vertical axis to cause the upper film portion to move that portion of the flexible surface in which the upper film portion is in contact. In a preferred embodiment, the cell body has a circular cross section so that the post moves vertically upward and downward to raise or lower the portion of the flexible surface in contact with the upper film portion upon application of electrostatic potential between the electrodes.