Vanderbilt University

Tuomas Wiste

Michael Goldfarb

Huseyin Atakan Varol

Skyler Ashton Dalley

A jointed mechanical device is provided. The device includes at least one element having a fixed end and a deflectable end. The device also includes at least one actuating structure having a first end coupled to at least the deflectable end of the element, where the actuating structure includes at least one elastic element in series with at least one non-elastic element. The device further includes at least one force actuator configured to apply an actuator force to a second end of the actuating structure. Additionally, the device includes a control system for adjusting an operation of the force actuator based at least one actuation input, an amount of the actuator force, and an amount of displacement generated by the force actuator.

Jointed mechanical devices

A jointed mechanical device is provided. The device includes at least one element () having a fixed end and a deflectable end. The device also includes at least one actuating structure () having a first end coupled to at least the deflectable end of the element, where the actuating structure includes at least one elastic element () in series with at least one non-elastic element. The device further includes at least one force actuator () configured to apply an actuator force to a second end of the actuating structure. Additionally, the device includes a control system () for adjusting an operation of the force actuator based at least one actuation input, an amount of the actuator force, and an amount of displacement generated by the force actuator.

Systems and methods for controlling jointed mechanical devices are is provided, where the device is controlled based on a topographic state () map having one or more motion axes (D, D) and defining a plurality of poses and a plurality of transitions in parallel with one of the motion axes, In the map, each motion axis is associated with complementary types of motion in the device and each of the transitions associated with at least two of the poses. A method includes the steps of receiving a control signal and determining a mechanical state of the device within the topographic state map. The method further includes identifying potential transitions associated with the mechanical state based on the topographic state map. The method also includes adjusting the mechanical state based on the control signal if the control signal is associated with a type of motion associated with one of the identified transitions.

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Genoa, Italy

Tuomas Wiste