Research on vibration reduction of semi-active suspension system of quarter vehicle based on time-delayed feedback control with body acceleration

Guo, Yong; Ren, Chuanbo

doi:10.1177/14613484211051845

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…Utilizing Equation (1), the differential equation for the unsprung motion of each set of suspensions [26] is:…”

Section: Establishment Of An Hps System Modelmentioning

confidence: 99%

Research on a Variable Universe Control Method and the Performance of Large Sprayer Active Suspension Based on an Artificial Fish Swarm Algorithm–Back Propagation Fuzzy Neural Network

Yang,

Liu,

Zhang

et al. 2024

Agriculture

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In view of the typical requirements of large high-clearance sprayers, such as those operating in poor road conditions for farmland plant protection and at high operation speeds, reducing the vibration of sprayer suspension systems has become a research hotspot. In this study, the hydro-pneumatic suspension (HPS) of large high-clearance sprayers was taken as the object, and a variable universe T-S fuzzy controller with real vehicle vibration data as input was proposed to control suspension motion in real time. Different from traditional semi-active suspension, based on the characteristics of variable universe extension factors, a training method combining the artificial fish swarm algorithm and the back propagation algorithm was used to establish a fuzzy neural network controller with precise input to optimize the variable universe. Then, the time-domain and frequency-domain response characteristics of HPS were analyzed by simulating the special road conditions typical of farmland. Finally, the field performance of the sprayer equipped with the new controller was tested. The results show that the error rate of the AFSA-BP algorithm in training the FNN could be reduced to 3.9%, and compared with a passive suspension system, the T-S fuzzy controller improved the effects of spring mass acceleration, pitch angle acceleration, and roll angle acceleration by 18.3%, 23.3%, and 27.7%, respectively, verifying the effectiveness and engineering practicality of the active controller in this study.

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“…Utilizing Equation (1), the differential equation for the unsprung motion of each set of suspensions [26] is:…”

Section: Establishment Of An Hps System Modelmentioning

confidence: 99%

Research on a Variable Universe Control Method and the Performance of Large Sprayer Active Suspension Based on an Artificial Fish Swarm Algorithm–Back Propagation Fuzzy Neural Network

Yang,

Liu,

Zhang

et al. 2024

Agriculture

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show abstract

“…Since the introduction of metasurface concepts, various devices and applications have emerged rapidly, including metasurface antennas 30,56 , radar cross-section modification 29 , specialized beam generation 40,41 , active metasurfaces 90 , and metasurfaces for quantum optics. In recent years, quantum optics research, as an emerging field, have experienced significant expansion and hold important prospects for applications in areas such as quantum computation, communication, storage, sensing and fundamental quantum physics research [91][92][93][94][95] . Metasurfaces are predicted to play a crucial role in the future quantum photonics technology.…”

Section: Metasurfaces For Quantum Optics Applicationsmentioning

confidence: 99%

Recent advances in metasurface design and quantum optics applications with machine learning, physics-informed neural networks, and topology optimization methods

Jin

et al. 2023

Light Sci Appl

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As a two-dimensional planar material with low depth profile, a metasurface can generate non-classical phase distributions for the transmitted and reflected electromagnetic waves at its interface. Thus, it offers more flexibility to control the wave front. A traditional metasurface design process mainly adopts the forward prediction algorithm, such as Finite Difference Time Domain, combined with manual parameter optimization. However, such methods are time-consuming, and it is difficult to keep the practical meta-atom spectrum being consistent with the ideal one. In addition, since the periodic boundary condition is used in the meta-atom design process, while the aperiodic condition is used in the array simulation, the coupling between neighboring meta-atoms leads to inevitable inaccuracy. In this review, representative intelligent methods for metasurface design are introduced and discussed, including machine learning, physics-information neural network, and topology optimization method. We elaborate on the principle of each approach, analyze their advantages and limitations, and discuss their potential applications. We also summarize recent advances in enabled metasurfaces for quantum optics applications. In short, this paper highlights a promising direction for intelligent metasurface designs and applications for future quantum optics research and serves as an up-to-date reference for researchers in the metasurface and metamaterial fields.

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The modeling and analysis of vibration response with airdrop vehicle in landing process

Zhang,

Zhao,

Shen

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

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Research on vibration reduction of semi-active suspension system of quarter vehicle based on time-delayed feedback control with body acceleration

Cited by 9 publications

References 14 publications

Research on a Variable Universe Control Method and the Performance of Large Sprayer Active Suspension Based on an Artificial Fish Swarm Algorithm–Back Propagation Fuzzy Neural Network

Research on a Variable Universe Control Method and the Performance of Large Sprayer Active Suspension Based on an Artificial Fish Swarm Algorithm–Back Propagation Fuzzy Neural Network

Recent advances in metasurface design and quantum optics applications with machine learning, physics-informed neural networks, and topology optimization methods

The modeling and analysis of vibration response with airdrop vehicle in landing process

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