Control strategies for DC motors driving rotor dynamic systems through resonance

Bisoi, Alfa; Samantaray, Arun Kumar; Bhattacharyya, Ranjan

doi:10.1016/j.jsv.2017.09.014

Cited by 16 publications

(8 citation statements)

References 39 publications

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“…Figure 4a shows the steady-state responses of the system, represented by Eqs. (13)- (16), during the passage through fundamental resonance region ( _ u % 1) which corresponds to the output of X 6 in a variation of a designated control parameter a with an amplitude diagram. However, in Fig.…”

Section: Autoparametric Non-ideal System Numerical Resultsmentioning

confidence: 99%

“…Therefore, near resonance, it appears that the additional power supplied to the motor only increases the amplitude of the response of the supporting structure while there is a little effect on the RPM of the motor. Eventually, enough power is supplied to the motor to initiate the jump, the operating frequency increases and the amplitude decreases, resulting in lower power consumption by the motor [10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system

et al. 2018

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This paper demonstrates that vibration mitigation and energy harvesting can be achieved simultaneously by using of an electricity-generating from autoparametric vibration absorber system (AVAS) and non-ideal system (NIS). The NIS consists of a simple portal frame excited by a small dc motor with eccentric mass, with limited power supply and located on the top. The AVAS consists of a cantilever beam with tip mass parallel coupled to NIS. A piezoelectric material is considered for energy harvesting installed in the base of the AVAS and an electric circuit is connected to the piezoelectric material in order to produce voltage output. Several numerical simulations were carried out focusing on the passage through the resonance of NIS, when the motor rotational frequency is near the portal frame natural frequency and when the non-ideal subsystem frequency is approximately twice the absorber beam frequency (two-to-one internal resonance). The results showed the existence of Sommerfeld effect in NIS and saturation phenomenon in the NIS-AVAS.

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Section: Autoparametric Non-ideal System Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system

et al. 2018

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“…19can model effectively a large number of electric motors, and its simple form arises due to the fact that electrical phenomena occurs much faster than the mechanical vibrations of the beam. Thus, the influence of the electrical current variation is, in some cases, negligible [39].…”

Section: One Can Havementioning

confidence: 99%

Numerical and experimental investigation of the dynamic behavior of a cantilever beam driven by two non-ideal sources

Varanis

Mereles

Silva

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Non-ideal energy sources are present in several engineering applications where the power source interacts with the dynamics of the structure to which it is coupled. The systems driven by this kind of source present a rich dynamic behavior and some phenomena that can only be observed under non-ideal consideration. The modeling of such systems becomes much more complex due to the interaction between the system and the energy source, requiring an additional equation. The present work proposes a continuous vibration model of a cantilever beam with two unbalanced DC motors. The motors are considered non-ideal energy sources. The advantage of the continuous approach is that the position of the motors can be easily varied. In addition, time-frequency methods are performed in order to characterize and identify the occurrence of the Sommerfeld effect on the non-stationary operation. In order to validate the model, experimental measurements were performed and, subsequently, compared with the numerical results.

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“…A DC servo motor is an electro-mechanical system which directly provides a rotary motion in the system [24]. The equivalent circuit and free-body diagram of the QUBE-servo motor are shown in Fig.…”

Section: Servo Motor Identificationmentioning

confidence: 99%

Archive of Mechanical Engineering

Le¹,

Dang²,

Anh-Duc³

et al. 2020

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System identifications of a 2DOF pendulum controlled by QUBE-servo and its unwanted oscillation factorsSystem identification is an approach for parameter detection and mathematical model determination using response signals of a dynamic system. Two degrees of freedom (2DOF) pendulum controlled by a QUBE-servo motor is a great experiment device to work with; though it is not easy to control this system due to its complex structure and multi-dimensional outputs. Hence, system identification is required for this system to analyze and evaluate its dynamic behaviors. This paper presents a methodology for identifying a 2DOF pendulum and its dynamic behaviors including noise from an encoder cable. Firstly, all parameters from both mechanical and electrical sides of the QUBE-servo motor are analyzed. Secondly, a mathematical model and identified parameters for the 2DOF pendulum are illustrated. Finally, disturbances from encoder cable of the QUBE-servo motor which introduce an unwanted oscillation or self-vibration in this system are introduced. The effect of itself on output response signals of the 2DOF QUBE-pendulum is also discussed. All identified parameters are checked and verified by a comparison between a theoretical simulation and experimental results. It is found that the disturbance from encoder cable of the 2DOF QUBE-pendulum is not negligible and should be carefully considered as a certain factor affecting response of system.

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Control strategies for DC motors driving rotor dynamic systems through resonance

Cited by 16 publications

References 39 publications

On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system

On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system

Numerical and experimental investigation of the dynamic behavior of a cantilever beam driven by two non-ideal sources

Archive of Mechanical Engineering

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