Communications in Nonlinear Science and Numerical Simulation最新文献_第8页

Resonances in nonlinear systems with a decaying chirped-frequency excitation and noise

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-25 DOI: 10.1016/j.cnsns.2025.108713

Oskar A. Sultanov

引用次数: 0

‘Input disturbance’-based distributed event-triggered secure control for MAS under DoS attacks: Switching mode strategy

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108692

Longjie Song , Yuanjian Liu , Wenfei Liu , Zhengxin Wang

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引用次数: 0

Mean-square finite and prescribed-time stability for nonlinear stochastic parabolic distributed parameter systems

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108688

Xisheng Dai , Yang Xu , Feiqi Deng

引用次数: 0

Bifurcation analysis and control in a second-order DC–AC inverter with quasi-PIR controller

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108702

Ronghua Wu , Xiaohong Zhang , Wei Jiang , Shaojiang Zhong

{"title":"Bifurcation analysis and control in a second-order DC–AC inverter with quasi-PIR controller","authors":"Ronghua Wu , Xiaohong Zhang , Wei Jiang , Shaojiang Zhong","doi":"10.1016/j.cnsns.2025.108702","DOIUrl":"10.1016/j.cnsns.2025.108702","url":null,"abstract":"<div><div>The evolution of complex dynamics in the second-order inverter with quasi-proportional integral resonance (PIR) controller is analyzed detailly in this paper, it is revealed that this inverter’s state changes not only from period-1 to chaos via period-doubling bifurcation, but also from stability to low-frequency oscillation via Hopf bifurcation, which will decrease the working life of the inverter. On the basis of this discovery, a logarithmic proportional time-delay feedback control strategy is proposed. The controlled object’s output current first subtracts to its own delay a period of time to form a difference term, which is subsequently fed into a proportional link to make difference with the constant <span><math><mi>e</mi></math></span>. The absolute value result is then fed into the natural logarithm and proportional links to obtain the control term, which is lastly applied to the controlled object in a feedback manner. Furthermore, the range of the feedback proportional coefficient is obtained via analyzing the controlled object’s stability. The comparative analysis shows that this strategy enhances the stability domain for each parameter by more than 8% in the quasi-PIR controlled second-order inverter, and stabilizes the low frequency oscillation caused by Hopf bifurcation.</div></div>","PeriodicalId":50658,"journal":{"name":"Communications in Nonlinear Science and Numerical Simulation","volume":"145 ","pages":"Article 108702"},"PeriodicalIF":3.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An efficient D-RBF-PU method for parabolic PDEs on evolving surfaces based on ALE framework

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108685

Yajun Liu, Yuanyang Qiao, Xufeng Xiao, Xinlong Feng

引用次数: 0

Intermittent sampled-data synchronization for stochastic large-scale networks with time delays under asynchronously periodic self-triggered mechanism

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108704

Hui Zhou , Yuanhao Fu , Wenxue Li

引用次数: 0

Stability and bifurcation analysis of a Holling–Tanner model with discontinuous harvesting action

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108720

Rony Cristiano

{"title":"Stability and bifurcation analysis of a Holling–Tanner model with discontinuous harvesting action","authors":"Rony Cristiano","doi":"10.1016/j.cnsns.2025.108720","DOIUrl":"10.1016/j.cnsns.2025.108720","url":null,"abstract":"<div><div>This work addresses the study of dynamics and bifurcations in a prey–predator model, known in the literature as the Holling–Tanner model, subject to a harvesting action of predators that is activated when the prey population is less than a certain threshold, and stopped otherwise. Such a model is represented by a piecewise smooth system with a switching boundary given by a straight line that is defined by the threshold established for the prey population. Under certain conditions on the system parameters, a pseudo-focus point appears at the switching boundary. Based on the Poincaré map defined in a neighborhood of the pseudo-focus, explicit conditions are given on the system parameters that determine its local stability, the occurrence of Hopf-like bifurcations and the emergence of crossing limit cycles. In addition to Hopf-like bifurcations, other local and global bifurcations such as the classical Hopf bifurcation, the Boundary Equilibrium bifurcations, the Saddle–Node bifurcation of periodic orbits and the Grazing bifurcation are also identified. A complete description of the existence and stability of equilibria and periodic orbits is provided based on the obtained two-parameter bifurcation set, from which the coexistence of four periodic orbits in the phase portrait of the system under study is proved.</div></div>","PeriodicalId":50658,"journal":{"name":"Communications in Nonlinear Science and Numerical Simulation","volume":"145 ","pages":"Article 108720"},"PeriodicalIF":3.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear time-varying actuator fault-tolerant control for a nonlinear high-rise building system with uncertain control direction and output constraints

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108697

Mengru Wang, Jinkun Liu

引用次数: 0

Dynamic memory event-triggered adaptive neural prescribed-time bipartite consensus control for high-order MASs with privacy preservation

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108693

Fansen Wei , Ning Xu , Xudong Zhao , Lun Li , A.A. Al-Barakati

{"title":"Dynamic memory event-triggered adaptive neural prescribed-time bipartite consensus control for high-order MASs with privacy preservation","authors":"Fansen Wei , Ning Xu , Xudong Zhao , Lun Li , A.A. Al-Barakati","doi":"10.1016/j.cnsns.2025.108693","DOIUrl":"10.1016/j.cnsns.2025.108693","url":null,"abstract":"<div><div>In this paper, an adaptive neural prescribed-time bipartite consensus tracking control scheme is investigated for nonlinear high-order multi-agent systems (HOMASs) with privacy preservation. Under the prescribed-time tracking control framework via the backstepping technique, among agents both cooperative and competitive relationships are considered. Moreover, a novel time-varying function is introduced to deal with the singularity problem in existing prescribed-time control methods. Then, a privacy protection mechanism is constructed by utilizing the mask function to protect the whole HOMASs rather than the initial information of a single agent from being leaked, and the privacy preservation time can be preset according to actual needs. In addition, a dynamic memory event-triggered mechanism that considers historical data and current information for dynamic variables is proposed to reduce communication loss. Based on the practical prescribed-time stability criterion and Lyapunov function approach, it is proven that bipartite consensus error can converge to the neighborhood of the origin in prescribed time. Finally, the simulation result is given to show the feasibility of the proposed control scheme.</div></div>","PeriodicalId":50658,"journal":{"name":"Communications in Nonlinear Science and Numerical Simulation","volume":"145 ","pages":"Article 108693"},"PeriodicalIF":3.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lyapunov conditions for the finite-time stability of fractional order disturbed nonlinear systems and neural networks: The secure image communication using encryption

IF 3.4 2区数学

Communications in Nonlinear Science and Numerical Simulation Pub Date : 2025-02-24 DOI: 10.1016/j.cnsns.2025.108716

Reshma Ramaswami, Vinodkumar Arumugam, Sriramakrishnan Pathmanaban

引用次数: 0