Subdivision surfaces have become a standard technique for freeform shape modeling. They are intuitive to use and permit designers to flexibly add detail. But with larger control meshes, efficient adaptive rendering techniques are indispensable for interactive visualization and shape modeling. In this paper, we present a realization of tesselation-on-the-fly for Loop subdivision surfaces as part...

This paper focusses on shape changes of tensegrity structures. An optimization method is developed for design of a reference trajectory for shape changes of an arbitrary tensegrity structure. By defining an objective and constraints related to the shape change, constrained optimization is used to determine the reference trajectory. To improve suppression of vibrations during the shape change, a...

Tensegrity deployment is considered herein as a tracking control problem. Therefore, the required trajectories should be feasible for a given structure. For tensegrity structures, this means that in every desired configuration, the structure has to satisfy tensegrity conditions, which require strings to be in tension, and the structure to be stable. To define an open-loop deployment control law...

This paper presents a novel method for demagnetization fault detection in permanent magnet synchronous machine (PMSM). Demagnetization is common problem existing PMSM which deteriorates the performance and can lead to serious subsequential damages. Unlike most popular based on analysis of currents detecting this type fault, approach proposed analyzes voltage signal non-invasive search coil by m...

Coherent terahertz control of magnetization dynamics is an area current interest due to its great potential for the realization on ultrafast timescales in commercial devices. Here we report experiment realized at THz beamline free electron laser FLASH DESY which offers a tunable radiation source and spontaneously synchronized free-electron X-ray pulses resonantly probe state ferromagnetic film....

Permanent magnet synchronous generators (PMSGs) with high output density per unit volume are becoming widespread in wind-power generation systems. Among them, spoke-type PMSGs more challenging to magnetize than other PMSGs, owing their structural characteristics. Magnetization performance is critical because it directly related the demagnetization and mass productivity of permanent magnets, loa...

When immersed in liquid 3He, the nanometer strands of aerogel are coated with a thin layer of solid 3He, forming a network of irregular nanotubes. Owing to its high purity and weak interactions, this system is ideal for studying fundamental processes. We report the first experiments on solid 3He in aerogel at ultralow temperatures, cooled by direct adiabatic demagnetization. Simultaneous nuclea...