Variations of flight patterns for falling flexible plates

2021 ◽  
Vol 33 (8) ◽  
pp. 081904
Author(s):  
Edwin M. Lau ◽  
Wei-Xi Huang
Keyword(s):  
Flexible Plates

Drag reduction of a blunt body through reconfiguration of rear flexible plates

2021 ◽  
Vol 33 (4) ◽  
pp. 045102
Author(s):  
C. García-Baena ◽  
J. I. Jiménez-González ◽  
C. Martínez-Bazán
Keyword(s):  
Drag Reduction ◽  
Blunt Body ◽  
Flexible Plates

scholarly journals Coupling Motion and Energy Harvesting of Two Side-by-Side Flexible Plates in a 3D Uniform Flow

2016 ◽  
Vol 6 (5) ◽  
pp. 141 ◽  
Author(s):  
Dibo Dong ◽  
Weishan Chen ◽  
Shengjun Shi
Keyword(s):  
Energy Harvesting ◽  
Uniform Flow ◽  
Flexible Plates ◽  
Coupling Motion

Suppression of regenerative chatter vibration in simultaneous double-sided milling of flexible plates by speed difference

CIRP Annals ◽  
2010 ◽  
Vol 59 (1) ◽  
pp. 387-390 ◽  
Author(s):  
E. Shamoto ◽  
T. Mori ◽  
K. Nishimura ◽  
T. Hiramatsu ◽  
Y. Kurata
Keyword(s):  
Chatter Vibration ◽  
Regenerative Chatter ◽  
Speed Difference ◽  
Flexible Plates

Multi-Agent Based Active Noise Intelligent Control

2014 ◽  
Vol 496-500 ◽  
pp. 1685-1689
Author(s):  
Huai Feng Cui ◽  
Nan Chen
Keyword(s):  
Control Problem ◽  
Local Control ◽  
Noise Control ◽  
Active Noise Control ◽  
Control Unit ◽  
Good Control ◽  
Agent Based ◽  
Active Noise ◽  
Flexible Plates ◽  
Multi Agent

Multi-agent based active noise control (ANC) is investigated in this paper. An enclosure consisting of two flexible plates is discussed. The noise control problem is decomposed into several local control problems on the basis of the dominant structural modal. Each local control problem is solved by an intelligent structure, i.e. agent control unit (ACU). The ACU includes sensor, actuator and controller. The relationship among the ACUs is negotiated by a coordination object. The architecture of multi-agent based active control is established using the coordination object. The control system can work smoothly in dynamic environments. It has the flexibility and robustness. The simulation results indicate that the good control performances are attained.

scholarly journals Calculation of plates in a geometrically nonlinear setting with the use of generalized equations of finite difference method

2018 ◽  
Vol 196 ◽  
pp. 01024 ◽  
Author(s):  
Natalia Uvarova ◽  
Radek Gabbasov
Keyword(s):  
Differential Equations ◽  
Numerical Method ◽  
Geometrically Nonlinear ◽  
Generalized Equations ◽  
Nonlinear Formulation ◽  
First Derivative ◽  
Equation Solving ◽  
Flexible Plates ◽  
Minimum Number ◽  
The Right

The article proposes a numerical method and an algorithm for analysis rectangular flexible plates in a geometrically nonlinear formulation. The generalized equations of the method of finite differences (MD) are used to solve the problem within the integrable region taking into account the discontinuities of the desired function, its first derivative and the right part of the original differential equation. Solving differential equations of the problem, composed with respect to the desired functions of deflection and stress are reduced to the 4th differential equations of the second order, which are solved numerically. As an example, a square plate loaded with a uniformly distributed load is considered. The results of the calculation with a minimum number of partitions are compared with the known analytical solution of A. S. Volmir [1] and indicate the possibility of using the numerical method for solving problems in a nonlinear formulation.

scholarly journals Vibration Performance of a Flow Energy Converter behind Two Side-by-Side Cylinders

2019 ◽  
Vol 7 (12) ◽  
pp. 435
Author(s):  
Mohammad Rasidi Rasani ◽  
Hazim Moria ◽  
Michael Beer ◽  
Ahmad Kamal Ariffin
Keyword(s):  
Three Dimensional ◽  
Reynold Number ◽  
Mean Amplitude ◽  
Navier Stokes ◽  
Cantilever Plate ◽  
Arbitrary Lagrangian Eulerian ◽  
Flow Solver ◽  
Energy Harvesters ◽  
Flow Energy ◽  
Flexible Plates

Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T / D = 1 . 7 and immersed in sub-critical flow of Reynold number R e D = 10 , 000 . A three-dimensional Navier–Stokes flow solver in an Arbitrary Lagrangian–Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0 . 5 < x / D < 1 . 5 and - 0 . 85 < y / D < 0 . 85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders.

Sign in / Sign up

Export Citation Format

Share Document