Multi-electrode layout design of electrorheological composite plates considering energy consumption in semi-active control

To the best of the authors’ knowledge, this is the first attempt in the open literature to study the active control of the dynamic response of functionally graded carbon nanotube–reinforced composite plates with piezoelectric layers, as target composite plates, subjected to impact loading. The theoretical formulation of the composite plates with piezoelectric layers is developed using the element-free improved moving least-squares Ritz model and the higher-order shear deformation theory. The effective material properties of the carbon nanotube–reinforced composite layer are estimated by the Mori–Tanaka method. The modified nonlinear Hertz contact law is used to identify the contact force between the target composite plates and the spherical impactor. The Newmark time integration method is utilized to calculate the resulting dynamic response. A constant velocity feedback controller is efficiently used for the active control of the dynamic response of the target plates subjected to impact loading. The results revealed that the current model can successfully reduce and suppress the resulting displacement caused by impact loading. Additionally, the effects of some passive configurations on the target plates’ dynamic response are presented. The effect of altering both active and passive control configurations together on the target plates’ dynamic response is discussed as well.

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Topology optimization of piezoelectric smart structures for minimum energy consumption under active control

Structural and Multidisciplinary Optimization ◽

10.1007/s00158-017-1886-y ◽

2017 ◽

Vol 58 (1) ◽

pp. 185-199 ◽

Cited By ~ 7

Author(s):

Xiaopeng Zhang ◽

Akihiro Takezawa ◽

Zhan Kang

Keyword(s):

Topology Optimization ◽

Energy Consumption ◽

Active Control ◽

Smart Structures ◽

Minimum Energy ◽

Minimum Energy Consumption

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A modified energy-saving skyhook for active suspension based on a hybrid electromagnetic actuator

Journal of Vibration and Control ◽

10.1177/1077546318775508 ◽

2018 ◽

Vol 25 (2) ◽

pp. 286-297 ◽

Cited By ~ 10

Author(s):

Renkai Ding ◽

Ruochen Wang ◽

Xiangpeng Meng ◽

Long Chen

Keyword(s):

Energy Consumption ◽

Energy Saving ◽

Active Control ◽

Dynamic Performance ◽

Active Suspension ◽

Linear Motor ◽

Bench Test ◽

Electromagnetic Actuator ◽

Energy Regeneration ◽

Hydraulic Damper

This study proposes a modified energy-saving skyhook consisting of active control, energy regeneration, and switch. The modified skyhook coordinates the contradiction between dynamic performance and energy consumption of electromagnetic active suspension. The control principle is analyzed, the switch condition between active control and energy recovery is provided, and the switch control system is designed for simulation. Results demonstrate that the presented strategy can coordinate the dynamic performance and energy consumption effectively. The realization structure, namely, a hybrid electromagnetic actuator, is then designed to satisfy the control requirements. It integrates a linear motor and a hydraulic damper. The linear motor is used for active control or energy regeneration, while the hydraulic damper is used to guarantee basic dynamic performance. The structural dimension of hybrid electromagnetic actuator is optimized to increase air gap flux density with the volume and weight limitation. A prototype is fabricated, and a bench test is conducted. Results show that the structure can satisfy the control requirements. Some errors within a reasonable range are also observed between the test and the simulation because the simulation model is prepared under ideal conditions.

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Establishment for the Equivalent Target of Shaped Jet Penetration Composite Armor

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.373-375.1995 ◽

2013 ◽

Vol 373-375 ◽

pp. 1995-1998

Author(s):

Hong Chao Gao ◽

Xing Bai Luo

Keyword(s):

Energy Consumption ◽

Physical Properties ◽

Composite Plates ◽

Equivalence Relations ◽

Practical Application ◽

Composite Target ◽

Test Cost ◽

Composite Armor ◽

Jet Penetration ◽

Target Depth

Due to the emergence of more and more composite armors, research related with equivalent target has practical application background. Composite armor with different physical properties between the layers weakens jet penetration effectively. If the equivalence relations between composite target and homogeneous one can be established, homogeneous target with a certain thickness takes the place of composite plates, the test cost will be slashed. After the principle of equivalent target and research methods to be introduced in brief, the jet penetration composite target for energy consumption and the jet penetration composite target depth research have been explored, the establishment about the equivalent target method of the armor-piercing projectile penetration composite armor is proposed.

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