The system is under-actuated by the virtue of having less actuation compared to number of system outputs.
In this paper we describe for the first time the design, fabrication and initial characterization results of a novel gimbal-less, thermally actuated micromirror developed for optical coherence tomography (OCT) application.
Qiao et al. develop a lightweight, less driven under-actuated robotic hand to realize on-orbit capture in space and propose a new analysis method for configuring the number of knuckles of finger by taking the maximum grasping space into account.
To capture non-cooperative targets in space, a lightweight, less driven under-actuated robotic hand is proposed in this paper, which composed by tendon-pulley transmission and double-stage mechanisms, and always driven by only one motor in process of closing finger.
This defense requires an account of the difference between capacities which are activated here and now, or are more or less ready to be so actuated, and radical capacities such as exist in the epigenetic primordia of even very young human beings, and in the genetic and somatic constitution of even the severely disabled.
An exponentially stabilization control method is proposed for a class of underactuated manipulators, of which the number of actuated joints is no less than that of the passive joints.
Since untwist of the actuating segment is compensated by up-twist of the non-actuated segment in Figure 6a, this actuator configuration can optimize tensile contraction per actuated muscle length.
The electrically actuated shape recovery behavior and temperature evolution during the actuation were monitored and characterized.
As an actuator redundancy can transform a mechanism into an overconstrained mechanism, the redundantly actuated PMs are also overconstrained PMs.
The actuated strain decreased with increasing frequency in both electrochemical and electro-magnetic actuators.
