Publicaties
Gekozen filters:
Gekozen filters:
Theoretical modelling and experimental identification of nonlinear torsional behaviour in harmonic drives KU Leuven
The demand for accurate and reliable positioning in industrial applications, especially in robotics and high-precusion machines, has led to the increased use of harmonic drives. The unique performance features of harmonic drives, such as high reduction ratio and high torque capacity in a compact geometry, justify their widespread application. However, nonlinear torsional compliance and friction are the most fundamental problems in these ...
A novel measurement setup to measure the fast harmonic motion and the power consumption of a hummingbird sized flapping wing driven by a resonant flapping mechanism KU Leuven
This paper presents the measurement set-up used to measure the wing motion of a robotic hummingbirdsized flapping wing and the power needed to drive this wing using a resonant flapping mechanism. The paper shows that a magnetic encoder can be used to instantaneously measure the fast back and forth stroke motion of a small flapping wing without affecting the wing motion and that the sensor data can be used in a feedback loop to control the stroke ...
Resonant harmonic generation and collective spin rotations in electrically driven quantum dots Universiteit Antwerpen
Spin rotations induced by an ac electric field in a two-electron double quantum dot are studied by an exact numerical solution of the time-dependent Schrodinger equation in the context of recent electric-dipole spin resonance experiments on gated nanowires. We demonstrate that the splitting of the main resonance line by the spin exchange coupling is accompanied by the appearance of fractional resonances and that both these effects are triggered ...
Convergence and adiabatic elimination for a driven dissipative quantum harmonic oscillator Universiteit Gent
Rotor induced harmonic voltages caused by supply voltage distortion, the interaction and its influence on the overall energy efficiency of line start permanent magnet machines Universiteit Antwerpen Universiteit Gent
The demand for ever increasingly efficient electromechanical energy conversion has resulted in the commercialization of medium power Line Start Permanent Magnet Motors. Similar to the standard Direct On line induction machines are these machines susceptible to grid voltage distortion. As LSPMM are to become a mature technology, the influence of voltage distortion on their efficiency should be addressed. The grid voltage distortion is composed of ...
Influence of harmonic voltage distortion on asynchronous generators Universiteit Antwerpen
Sensorless Drive of Surface Mounted Permanent-Magnet Brushless DC Machines with Diametric Windings based on Inductance Measurements Vrije Universiteit Brussel
Last decades, important progress have been made in sensorless control methods based on the tracking of magnetic anisotropies linked to the rotor. These methods allow to estimate the rotor position at low speed down to standstill. The magnetic anisotropy is generally approached by a sinusoidal shaped function. However, the theory must be adapted in case of additional harmonic content in the anisotropy function. This paper specifically addresses ...
Sensorless drive of surface-mounted permanent-magnet brushless DC-machines with diametric windings based on inductance measurements Universiteit Gent
Last decades, important progress have been made in sensorless control methods based on the tracking of magnetic anisotropies linked to the rotor. These methods allow to estimate the rotor position at low speed down to standstill. The magnetic anisotropy is generally approached by a sinusoidal shaped function. However, the theory must be adapted in case of additional harmonic content in the anisotropy function. This paper specifically addresses ...
Compact Gearboxes for modern Robotics: A Review Vrije Universiteit Brussel
On the eve of Human-Robot-Interaction (HRI) becoming customary in our lives, the performance of HRI robotic devices remains strongly conditioned by their gearboxes. In most industrial robots, two relatively unconventional transmission technologies – Harmonic Drives © and Cycloid Drives – are usually found, which are not so broadly used in other industries. Understanding the origin of this singularity provides valuable insights in the search for ...