Electromechanical co-design and experiment of structurally integrated antenna

Zhou, Jinzhu; Huang, Jin; Song, Liwei; Zhang, Dan; Ma, Yunchao

doi:10.1088/0964-1726/24/3/037004

Cited by 22 publications

(20 citation statements)

References 26 publications

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“…However, the nonlinear phenomena of the starting dead zone, stick-slip, and flat-topped were not eliminated; thus, the dynamic performance still has the potential to improve. [ 50 – 55 ] proposed a compensation method based on the Lyapunov theory to compensate for the nonlinear friction during the operation of a ball-screw electro-mechanical servo system. They used the LuGre model to identify the parameters of the friction model online and designed a compensation controller through an adaptive back-stepping control method that obtained ideal compensation effects.…”

Section: Discussionmentioning

confidence: 99%

The compensation for nonlinear friction of DDVC flange-type rotary vane steering gear

Liang

Wang

2018

PLoS ONE

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This study reports on the direct drive volume control flange-type rotary vane steering gear (DDVC-FRVSG), a promising component with superior advantages of compact structure, powerful vibration absorption, and simple control for application in the controlling course and posture of a vessel. The ability of the DDVC-FRVSG to satisfy the accuracy requirement of the vessel is limited by nonlinear friction. This study proposes two compensation methods to compensate for the nonlinear friction. We establish the mathematical model and the transfer function of the steering gear system and the mathematical model of nonlinear friction on the DDVC-FRVSG system based on the principle of the DDVC-FRVSG. A high-gain proportional–integral–derivative control strategy and another method using the self-adaption robust control strategy is proposed and studied both theoretically and experimentally to suppress the nonlinear friction. With the “no-compensation state” as a benchmark, our measured results by prototype testing has proved that both methods can compensate for the nonlinear friction, with the second method showing a better performance of up to 78.85% increase compared to that of the 41.65% shown by the first one. The outcome of this research will contribute to the rapidity and stability of the DDVC-FRVSG.

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Section: Discussionmentioning

confidence: 99%

The compensation for nonlinear friction of DDVC flange-type rotary vane steering gear

Liang

Wang

2018

PLoS ONE

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“…Select the positive definition of the Lyapunov function as (43). In (43), r n (n=0,1.2.3) is the adaptive gain.…”

Section: Compensation Methodsmentioning

confidence: 99%

“…Zhang et al put forward a Lyapunov-theory-based compensation method, which uses the LuGre model to identify the parameters of the friction model online, to compensate for the nonlinear friction when the ball-screw electro-mechanical servo system operates. Moreover, they adopted an integral back-stepping adaptive control method to design a compensation controller, using which ideal compensation effects were obtained [30]- [43].…”

Section: Introductionmentioning

confidence: 99%

Energy-Saving Nonlinear Friction Compensation Method for Direct Drive Volume Control Flange-Type Rotary Vane Steering Gear

Liang

Wang

2019

IEEE Access

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In the research of various energy technologies, the direct-drive volume control flange-type rotary vane steering gear (DDVC-FRVSG) has become a promising component for controlling the course and posture of a vessel because of its superior energy-saving performance. However, nonlinear friction limits the ability of the DDVC-FRVSG to satisfy the efficient energy requirements of the vessel. This study proposes compensation methods to suppress nonlinear friction, such that the rudder can be efficiently controlled. Based on the principle of the DDVC-FRVSG, we establish a mathematical model and transfer function of the steering gear system along with a mathematical model of the impact of nonlinear friction on the rudder system. A friction model-based method using the integral back-stepping adaptive control strategy is proposed to suppress nonlinear friction, and both the models are studied theoretically and through simulation. Taking the no-compensation state as a benchmark, our measured results by prototype testing reveal that the method can compensate for nonlinear friction, achieving up to 73.08 % better performance on average and reducing the output power of the driving motor by 36.39 % on average. The findings of this research will contribute to the energy-saving performance and efficient energy requirement of the DDVC-FRVSG system.

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“…Many researchers have dedicated to the investigation of the skin antenna and proposed different concepts such as a conformal load-bearing antenna [4][5][6], structurally integrated antenna [7,8], structurally embedded vascular antenna [9,10], three-dimensionally integrated microstrip antenna [11][12][13][14], and composite antenna [15][16][17]. Almostand printing circuit board (PCB) are utilized to fabricate the active skin antenna.…”

Section: Introductionmentioning

confidence: 99%

Design, Fabrication, and Testing of Active Skin Antenna with 3D Printing Array Framework

Zhou

Kang

et al. 2017

International Journal of Antennas and Propagation

Self Cite

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An active skin antenna with structural load-bearing and electromagnetic functions is usually installed in the structural surface of mobile vehicles such as aircrafts, warships, and high-speed train. This paper presents the design, fabrication, and testing of a novel active skin antenna which consists of an encapsulation shell, antenna skin, and RF and beam control circuits. The antenna skin which consists of the facesheet, honeycomb, array framework, and microstrip antenna elements was designed by using Bayesian optimization, in order to improve the design efficiency. An active skin antenna prototype with 32 microstrip antenna elements was fabricated by using a hybrid manufacturing method. In this method, 3D printing technology was applied to fabricate the array framework, and the different layers were bonded to form the final antenna skin by using traditional composite process. Some experimental testing was conducted, and the testing results validate the feasibility the proposed antenna skin structure. The proposed design and fabrication technique is suitable for the development of conformal load-bearing antenna or smart skin antenna installed in the structural surface of aircraft, warships, and armored vehicles.

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Electromechanical co-design and experiment of structurally integrated antenna

Cited by 22 publications

References 26 publications

The compensation for nonlinear friction of DDVC flange-type rotary vane steering gear

The compensation for nonlinear friction of DDVC flange-type rotary vane steering gear

Energy-Saving Nonlinear Friction Compensation Method for Direct Drive Volume Control Flange-Type Rotary Vane Steering Gear

Design, Fabrication, and Testing of Active Skin Antenna with 3D Printing Array Framework

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