D
Dan-Sorin Necsulescu
Researcher at University of Ottawa
Publications - 16
Citations - 238
Dan-Sorin Necsulescu is an academic researcher from University of Ottawa. The author has contributed to research in topics: Robot & Mobile robot. The author has an hindex of 6, co-authored 16 publications receiving 159 citations.
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Generalized stepwise demodulation transform and synchrosqueezing for time–frequency analysis and bearing fault diagnosis
TL;DR: The main advantages of the proposed generalized stepwise demodulation transform for bearing condition monitoring under variable speed conditions include: (a) it can simultaneously improve energy concentration level of signals of interest and remove interferences in the TFR, (b) it is resampling-free and hence can avoid the resamplings related errors, and (c) it yields instantaneous frequencies for fault and shaft rotation and thus can carry out both fault detection and diagnosis tasks.
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Velocity Synchronous Linear Chirplet Transform
TL;DR: The proposed VSLCT is an extended version of the current linear transform that can effectively alleviate the smear effect and can dynamically provide desirable time–frequency resolution in response to condition variations.
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Velocity synchronous bilinear distribution for planetary gearbox fault diagnosis under non-stationary conditions
TL;DR: A time-frequency method, named velocity synchronous bilinear distribution (VSBD), for planetary gearbox fault diagnosis under non-stationary conditions that is free from smear effect and has improved time- frequencies resolution in comparison with other existing time- Frequency methods.
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A velocity synchrosqueezing transform for fault diagnosis of planetary gearboxes under nonstationary conditions
TL;DR: In this paper, a synchrosqueezing-transform-based method is proposed to map the raw nonstationary vibration signal into a corresponding stationary angle domain signal to meet the stationarity requirement of the synchro-squeezing transform.
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Decentralized Control of Autonomous Mobile Robots Formations using Velocity Potentials
TL;DR: In this paper, a leader follower approach is applied for controllers design to drive the robots toward the goal, and the results confirm the ability of velocity potential approach for motion control of both self-organizing and geometric formations.