Results 51 to 60 of about 3,708 (166)

Torsional Vibration Suppression in Multi-Condition Electric Propulsion Systems Through Harmonic Current Modulation

Actuators
Electric helicopters represent a pivotal component in the advancement of urban air mobility (UAM), with considerable potential for future development. The electric propulsion system (EPS) is the core component of these systems.
Hanjie Jia, Guanghong Hu, Xiangyang Xu, Dong Liang, Changzhao Liu   +4 more
doaj   +1 more source

Predictive Control Structure for a Two-Mass Drive System with a Two-Layer Observer

Energies
This paper presents the control problem of a drive system with an electric motor and a finitely stiff shaft. In such a system, effective damping of torsional vibrations requires the use of advanced control structures.
Karol Wróbel, Kacper Krzysztof Śleszycki, Piotr Majdański   +2 more
doaj   +1 more source

Torsional vibration

, 2012
Torsional vibration can be broadly described as the angular vibration of any object as a result of applied torque. It can be defined specifically as the periodic motion corresponding to a shaft, where the shaft is twisted about its axis, alternating from one direction to the other.
openaire   +1 more source

Investigation of Axial–Torsional Vibration Characteristics and Vibration Mitigation Mechanism in Compound Percussive Drilling

Applied Sciences
Severe drill string vibrations, particularly stick–slip, significantly compromise drilling efficiency and tool longevity in deep hard formations. Compound percussive drilling (CPD) has emerged as a promising technique to mitigate these vibrations and ...
Wei Wang, Boyu Guo, Gonghui Liu, Chunqing Zha, Tian Chen, Jun Li   +5 more
doaj   +1 more source

Dynamic active torque coordination strategy for torsional vibration suppression in wind turbines during grid fault recovery

International Journal of Electrical Power & Energy Systems
When the grid fault occurs, wind turbines are required to possess fault ride-through (FRT) capability and rapidly restore active power after fault clearance.
Cai Guang, Yan Xiangwu, Zhang Shurui, Ren Haoyang, Jia Jiaoxin, Zhou Fan   +5 more
doaj   +1 more source

Bending-torsion coupling vibrations of dual-disk rotor system with imbalance and oil film bearings

Advances in Mechanical Engineering
Due to the errors of manufacturing and installation of the rotor system, there is a certain deviation between the centroid and the geometric center of the rotor, known as eccentricity, which causes the bending and torsional vibrations during operation ...
Guofang Nan, Haoyu Wang, Xuewen Qiu, Ying Wang, Yihui Zhou   +4 more
doaj   +1 more source

Viscosity Characterization of PDMS and Its Influence on the Performance of a Torsional Vibration Viscous Damper Under Forced Hydrodynamic Loading. [PDF]

Materials (Basel)
Chmielowiec A, Michajłyszyn A, Gumieniak J, Woś S, Homik W, Antosz K.   +5 more
europepmc   +1 more source

Analysis of the effect of stabilizer configuration on reamer vibration suppression. [PDF]

Sci Prog
Yu F, Kuang Y, Li B.
europepmc   +1 more source

Simulation of the additional damping characteristics of underwater heave plates for mitigating long-span bridges vibration. [PDF]

Sci Rep
An W, Xu F, Wang M.
europepmc   +1 more source

Vibration behavior analysis of reamers based on drill string dynamics. [PDF]

Sci Rep
Fusheng Y, Yuchun K, Bin L, Qianwen C, Ming S.   +4 more
europepmc   +1 more source