In high-end testing and manufacturing equipment, a trend exists whereby the traditional
servo feed system with a ball screw and rotary motor will gradually be replaced by a direct …

This study presents an innovative solution to address the performance degradation of eddy
current dampers (ECD) at high speeds. It replaces the traditional copper conductor with a …

Friction and other unmodeled uncertainties in pneumatic actuator systems limit their use in
high precise constant pressure control applications, such as ultraprecision grinding and low …

Background The direct-drive linear motor system is usually a low-dam** system, which
will cause residual vibration and deteriorate the accuracy of the equipment especially in the …

In order to solve the problem of the large moment of inertia of the existing rotating
electromagnetic shock absorber for armored vehicles, a new lightweight rotor adaptive …

Decoupled parallel xyz positioning stages with a large stroke are desired in high-speed and
precise positioning applications. However, currently, such stages either have a short stroke …

The eddy current damper has plenty of advantages, such as non-contact energy dissipation,
stable dam** performance, and high reliability and durability, which is a novel dam** …

The flexure-based nanopositioning stages driven by the voice coil motors (VCMs) are
increasingly demanded with the advantage of simultaneously achieving millimeter-scale …

A novel mechanical flux-adjusting permanent magnet linear eddy current brake with high
performance and its nonlinear analytical model are proposed. The innovative point lies in …

Liquid hydrogen turbopumps are used in large high-performance rockets. Stable high-speed
rotation is required for rocket turbopumps. The dam** mechanism of the pump must …