Nickel-titanium (NiTi) shape memory alloy (SMA) actuators have attracted considerable interest in upper-limb prosthetic design because they can produce useful motion within compact and quiet mechanisms. However, results obtained from isolated SMA wires or springs do not always represent their performance in a complete...
Zheng-Wan Deng, Tianbo Yang, Hong-Liu Yu et al.· Smart Materials and Engineer...· 0 citations
OBJECTIVE
The shoulder joint is pivotal for upper-limb kinematics, yet individuals with post-stroke hemiparesis often require external shoulder support because of impaired motor control, excessive gravitational loading, and the risk of glenohumeral complications. Existing rehabilitation exoskeletons still face challeng...
Rongna Xu, Wen-Hao Yan, Songning Deng et al.· IEEE transactions on bio-med...· 0 citations
Sustained uphill motion of two-wheeled self-balancing wheelchairs is challenging. Slope-induced gravity changes the equilibrium condition, driving-torque demand, and velocity response. This paper proposes a smoothly weighted hybrid control method. The method combines nonlinear model predictive control and a linear quad...