Results 71 to 80 of about 858,761 (200)

Adaptive optimization of virtual synchronous generator based on fuzzy logic control and differential evolution

open access: yesAin Shams Engineering Journal
Maintaining frequency stability in low inertia microgrids with high renewable energy source (RES) penetration is a major problem. To resolve this issue, the use of the virtual synchronous generator (VSG) was proposed in the literature.
Youssef Awda, Maad Alowaifeer
doaj   +1 more source

A study of joint damping in metal plates

open access: yes, 2006
For satellite applications the determination of the correct dynamic behaviour and in particular the structural damping is important to assess the vibration environment for the spacecraft subsystems and ultimately their capability to withstand the launch ...
Walker, S.J.I.   +2 more
core   +1 more source

Calculation of the Added Mass and Damping Forces on Supercavitating Bodies [PDF]

open access: yes, 2001
A linearized formulation for the unsteady forces experienced by supercavitating bodies is developed in terms of their added mass and damping coefficients. The formulation is general, but is applied here using an axisymmetric base flow.
Fine, Neal E.   +2 more
core  

Limiting Stiffness and Damping Coefficients of Foil Bearing

open access: yes, 2005
The limiting values of load capacity, stiffness and damping coefficients for a foil bearing are presented. The necessary conditions for high bearing numbers (journal operating at high speed) are obtained by simplifying the compressible Reynolds equation.
Rao, T. V. V. L. N., Sawicki, Jerzy T.
core   +1 more source

Reduced joint models for damping design of multi-jointed structures [PDF]

open access: yes, 2014
− Design of damping in multi-jointed structures is studied here. − Dissipation sources are viscoelastic behavior and contact/friction at joints interfaces. − Reduction on meta-models of nonlinear joints models is investigated.
BALMES, Etienne   +2 more
core  

Flexible joints performance assessment of additive manufacturing FDM 3D printed TPU.

open access: yesPLoS ONE
Given the increasing adoption of flexible 3D-printed joints in the field of robotics, it is essential to characterize the stiffness/spring coefficient and damping of printed specimens to understand the effects of various processing parameters and their ...
Daniel Rodríguez-Flores   +3 more
doaj   +1 more source

Investigation into the Dynamic Parameter Characterization of Water-Lubricated Bearings Under Vibration Coupling

open access: yesLubricants
This study aims to investigate the dynamic behavior of water-lubricated stern bearings during service. A transient rotor dynamics numerical model is developed to research the effects of operating conditions and critical structural parameters on the ...
Hongtao Zhu   +4 more
doaj   +1 more source

Damping and stiffness coefficients variations.

open access: yes, 2013
Damping (A) and stiffness (B) coefficients estimated for adolescents (grey line) and adults (black line) with Down syndrome over the three cycles following the first flexion. F1–F4, peak angles of flexion; E1–E4, peak angles of extension.
Antonino Casabona (22594)   +4 more
core   +1 more source

MPPT Reactive Control Algorithm for Heaving Wave Energy Converters With Power Setpoint Capabilities

open access: yesIEEE Access
Reactive control is a popular method for maximizing wave energy absorption in wave energy converters (WECs). This technique involves adjusting the damping and stiffness coefficients of the WEC to align its natural frequency with the frequency of incoming
Abdin Y. Elamin   +7 more
doaj   +1 more source

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