Hydraulic actuated automotive cooling systems—Nonlinear control and test

Development and Testing of a Manually Actuated Hydraulic Sphincter for the Control of Urinary Incontinence

This article covers the development and testing (in vitro and in vivo) of an implanted artificial sphincter for the control of urinary incontinence. The implant includes a cuff to be implanted around the urethra, and an actuator unit to activate and deactivate the cuff and to control the cuff pressure. The design overcomes some of the limitations of other such implants by providing easy adjustm...

Design and simulation for a hydraulic actuated quadruped robot

This paper describes the mechanical configuration of a quadruped robot firstly. Each of the four legs consists of three rotary joints. All joints of the robot are actuated by linear hydraulic servo cylinders. Then it deduces the forward and inverse kinematic equations for four legs with D-H transformation matrices. Furthermore, it gives a composite foot trajectory composed of cubic curve and st...

Mechanical oscillation and cooling actuated by the optical gradient force.

In this work, we combine the large per-photon optical gradient force with the sensitive feedback of a high quality factor whispering-gallery microcavity. The cavity geometry, consisting of a pair of silica disks separated by a nanoscale gap, shows extremely strong dynamical backaction, powerful enough to excite coherent oscillations even under heavily damped conditions (mechanical Q approximate...

Model predictive control of magnetically actuated mass spring dampers for automotive applications

Adaptive control for a multi-axis hydraulic test rig

Multi-axis hydraulic rigs are widely used in industrial testing applications but still represent a challenging area for control system design. The current paper considers the control of a six-degrees-of-freedom multi-axis shaking table driven by six hydraulic actuators. The strategy adopted employs adaptive decentralized position control, i.e. each axis has its own adaptive controller. The sche...