Applied Mathematical Modelling最新文献_第4页

On the asymptotic form of the posterior probability density function for distributions with polynomial failure rates 多项式失效率分布的后验概率密度函数的渐近形式

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-26 DOI: 10.1016/j.apm.2025.116389

Serguei Maximov , Jose G. Tirado-Serrato , Alfredo Sanchez

引用次数: 0

Semi-analytical modeling of receive transfer function and thermal noise of integrated photonic ultrasound transducers 集成光子超声换能器接收传递函数和热噪声的半解析建模

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-25 DOI: 10.1016/j.apm.2025.116381

Sabiju Valiya Valappil , Peter Harmsma , Maurits van der Heiden , Martin Verweij , Paul van Neer

{"title":"Semi-analytical modeling of receive transfer function and thermal noise of integrated photonic ultrasound transducers","authors":"Sabiju Valiya Valappil , Peter Harmsma , Maurits van der Heiden , Martin Verweij , Paul van Neer","doi":"10.1016/j.apm.2025.116381","DOIUrl":"10.1016/j.apm.2025.116381","url":null,"abstract":"<div><div>Ultrasound transducers (UTs) are extensively used in several applications across a multitude of disciplines. A new type of UTs namely integrated photonic ultrasound transducers (IPUTs) possess superior performance due to the presence of optical interrogation systems, avoiding electric crosstalk and thermal electronic noise of the sensor. However, a major component of the IPUT's noise floor is its thermal acoustic noise. Several studies have been proposed to characterize IPUTs' behavior; nevertheless, these are either incomplete (model only the thermal noise) or targeted to characterize specific responses such as static behavior, in which the modeled receive transfer function (RTF) is about two orders lower than the experiments. In this study, we develop semi-analytical models based on time-domain finite element analysis and analytical expressions to characterize the RTF and thermal noise-induced noise equivalent pressure of IPUTs. We validate the models by comparing them with the literature, where we obtain a close match between them.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116381"},"PeriodicalIF":4.4,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling SH-wave dynamics in a size-dependent poroelastic-flexomagnetic layered waveguide structure with parabolic interfacial discontinuity 具有抛物界面不连续的孔弹性-柔性磁层状波导结构中sh波动力学模型

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-25 DOI: 10.1016/j.apm.2025.116393

Vipin Gupta , Soumik Das , Marin Marin , Bandar Almohsen , Rachaita Dutta

{"title":"Modeling SH-wave dynamics in a size-dependent poroelastic-flexomagnetic layered waveguide structure with parabolic interfacial discontinuity","authors":"Vipin Gupta , Soumik Das , Marin Marin , Bandar Almohsen , Rachaita Dutta","doi":"10.1016/j.apm.2025.116393","DOIUrl":"10.1016/j.apm.2025.116393","url":null,"abstract":"<div><div>This research explores the behavior of shear horizontal (SH) waves as they propagate through a unique size-dependent configuration where a stratum of fluid-saturated nonlocal fissured porous material overlays a substrate comprising nonlocal flexomagnetic material. The analysis focuses on how parabolic interfacial irregularity, nonlocality, and flexomagnetic effect jointly influence SH-wave behavior. By applying the Fourier transform alongside perturbation techniques, complex frequency relation is determined to describe SH-wave propagation across the irregular interface. The dispersion and damping properties of the waves are extracted from the real and imaginary components of the frequency relation. Key parameters, such as the flexomagnetic coefficient, shape of the interfacial irregularity, porosity, piezomagnetic properties, and nonlocality are evaluated for their impact on wave propagation. The results reveal that parabolic interfacial irregularity and flexomagnetic effects significantly modify SH-wave dispersion and damping characteristics. The study underscores the material-dependent nature of wave propagation in such complex layered systems and validates the proposed model through consistency with established wave propagation theories.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116393"},"PeriodicalIF":4.4,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dimension-reduction method for analysis of vaccination evolution with dynamic risk perception during epidemics 流行病期间具有动态风险感知的疫苗接种演变分析的降维方法

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-25 DOI: 10.1016/j.apm.2025.116380

Yanyi Nie , Tao Lin , Wei Wang

引用次数: 0

Reliability and cost-effectiveness optimization of G-systems with preventive maintenance strategy and unreliable repairman 采用预防性维护策略和不可靠维修人员对g系统进行可靠性和成本效益优化

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-23 DOI: 10.1016/j.apm.2025.116387

Chia-Huang Wu , Yin-Ying Dai , Dong-Yuh Yang

{"title":"Reliability and cost-effectiveness optimization of G-systems with preventive maintenance strategy and unreliable repairman","authors":"Chia-Huang Wu , Yin-Ying Dai , Dong-Yuh Yang","doi":"10.1016/j.apm.2025.116387","DOIUrl":"10.1016/j.apm.2025.116387","url":null,"abstract":"<div><div>This paper presents a comprehensive analysis of a repairable <<em>k</em><sub>1</sub>, <em>k</em><sub>2</sub>>-out-of-<em>n</em>: G system comprising two distinct component types and a single unreliable repairman. We develop both availability and reliability models to assess the system performance under realistic repair constraints. For the availability model, the matrix-analytical method is employed to derive the steady-state probability distribution. Key performance indicators, including system availability and other critical metrics, are systematically obtained to characterize long-term system behavior. For the transient reliability analysis, we investigate four numerical methods: the Runge-Kutta method, the Laplace transform method, the eigenvalue-based method, and the matrix exponential method. Through extensive numerical experiments, we compare their accuracy and reveal notable drawbacks in terms of stability and scalability. The comparative results show the numerical instability issue of the eigenvalue-based method, and thus, the Laplace transform method is selected to derive the mean time to failure. A sensitivity analysis is then conducted to explore the impact of key parameters and demonstrate that component failure rates impact the system reliability more than service rates. We further introduce a cost-effectiveness model, combining the steady-state availability with the associated cost. The particle swarm optimization algorithm is applied to determine the optimal recovery rates under different system configurations. Finally, the role of preventive maintenance in enhancing the cost-effectiveness ratio is inspected.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116387"},"PeriodicalIF":4.4,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A thermal-mechanical coupling modeling with imperfect interfaces: Transition from ballistic to diffusive heat transfer 具有不完全界面的热-力学耦合模型：从弹道传热到扩散传热的转变

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-22 DOI: 10.1016/j.apm.2025.116361

Weiqiang Ding, Tao Xue, Xiaobing Zhang

{"title":"A thermal-mechanical coupling modeling with imperfect interfaces: Transition from ballistic to diffusive heat transfer","authors":"Weiqiang Ding, Tao Xue, Xiaobing Zhang","doi":"10.1016/j.apm.2025.116361","DOIUrl":"10.1016/j.apm.2025.116361","url":null,"abstract":"<div><div>This paper proposes a generalized thermo-mechanical coupling model to analyze stress distribution in multilayer composites driven by cross-scale heat transfer. The Cattaneo-Fourier (C-F) heat flux model and its associated thermoelastic constitutive framework are revisited within the Green-Lindsay formalism, incorporating transition scales from ballistic to diffusive heat transfer. The resulting thermoelastic formulation predicts thermal stress evolution in layers of varying thicknesses, while the Kapitza thermal interface is modeled as a time-independent algebraic constraint on adjacent interfacial stress. Consequently, the proposed generalized model forms a differential-algebraic system, solved numerically via a fully implicit time integration scheme. Numerical simulations demonstrate the model's accuracy in capturing coupled temperature-mechanical field effects during cross-scale heat transfer, including purely ballistic, ballistic-diffusive, and purely diffusive regimes, as well as perfect and imperfect thermal interfaces. Additionally, a case study of a cracked plate investigates thermoelastic responses under coexisting cracks and imperfect interfaces, revealing temperature-stress evolution dynamics. This computational framework advances theoretical analysis of cross-scale thermo-mechanical coupling in composites, highlighting the critical roles of interfacial effects and heat transfer mechanisms in material behavior.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116361"},"PeriodicalIF":4.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144896741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel framework for 4D UAV swarm path planning 一种新的四维无人机群路径规划框架

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-22 DOI: 10.1016/j.apm.2025.116383

Gang Hu , Peidong He , Mahmoud Abdel Salam , Guo Wei

{"title":"A novel framework for 4D UAV swarm path planning","authors":"Gang Hu , Peidong He , Mahmoud Abdel Salam , Guo Wei","doi":"10.1016/j.apm.2025.116383","DOIUrl":"10.1016/j.apm.2025.116383","url":null,"abstract":"<div><div>UAVs (Unmanned Aerial Vehicles) have gained popularity in agricultural monitoring and military strikes due to their efficiency, flexibility, and affordability. However, achieving autonomic flight for UAVs still faces challenges. We make innovative adjustments in three aspects: environment modeling, path planning process, and path generator. Combine the advantages of the Global Path Search Algorithm and Local Path Search Algorithm, then design a large-scale UAV swarm path planning algorithm based on Plan Separation and Consolidation Method. We use many hybrid models to re-model the various environmental elements, which solves the weakness of the \"combination explosion\" and the inability to balance the various practical needs when extending the 2D grid method to 3D space. The Plan Separation and Consolidation Method separates the path planning problem of large-scale UAV swarms both in the time dimension and the dimension of the individuals of UAVs, and then consolidates the planning problems through temporary static obstacle regions, which utterly eliminates the \"curse of dimensionality\" in the planning process of large-scale UAV swarms, and provides a new opportunity for the autonomous control and parallelization of UAV swarms. We design a new local path evaluator and an enhanced Differentiated Creative Search algorithm to generate approximately optimal local paths quickly and accurately. We validate the effectiveness of the Plan Separation and Consolidation Method process and path generation method through a large number of repetitive experiments. Supplementary materials and related code can be downloaded at <span><span>https://ogi.teracloud.jp/share/1202e180fd6a0c09</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116383"},"PeriodicalIF":4.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model-free approach for inferring residence time distribution and its applications 推断停留时间分布的无模型方法及其应用

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-22 DOI: 10.1016/j.apm.2025.116401

Jehyeok Choi , Jungmin Tak , Minsun Hwang , Seon Yeop Jung , Kwang Soo Cho

{"title":"Model-free approach for inferring residence time distribution and its applications","authors":"Jehyeok Choi , Jungmin Tak , Minsun Hwang , Seon Yeop Jung , Kwang Soo Cho","doi":"10.1016/j.apm.2025.116401","DOIUrl":"10.1016/j.apm.2025.116401","url":null,"abstract":"<div><div>Residence Time Distribution (RTD) is an important concept for optimizing chemical processes, but conventional RTD studies have limitations, such as being sensitive to experimental errors, oversimplifying the system, or being computationally expensive. This study proposes a novel numerical algorithm that accurately and robustly computes the RTD based on data points without assuming any predetermined model. The proposed method employs B-spline regression analysis with fixed-point iteration (FPI), a technique commonly used in the field of rheology to calculate the relaxation time spectrum. Our algorithm estimates accurate RTDs using B-spline regression analysis and guarantees non-negative RTD values using the FPI method. We use simulation data, both error-free and error-included, to verify the optimal conditions of the algorithm. We identify the optimal conditions of the algorithm, confirming that it can accurately compute RTDs regardless of the shapes of the input function and the RTD. Through experimental and CFD data, we verify that the algorithm computes consistent RTDs regardless of the input function when sufficient data are provided. Our RTD calculation algorithm can calculate RTD regardless of any input data and does not use a predefined model, so it is expected to be effectively utilized in RTD analysis of complex systems such as twin-screw extruders, stirred tank reactors, and pharmaceutical manufacturing systems.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116401"},"PeriodicalIF":4.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144898339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-domain low-rank tensor completion for traffic data recovery 交通数据恢复的双域低秩张量补全

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-21 DOI: 10.1016/j.apm.2025.116404

Xiaobo Chen, Nan Xu, Kaiyuan Wang

{"title":"Dual-domain low-rank tensor completion for traffic data recovery","authors":"Xiaobo Chen, Nan Xu, Kaiyuan Wang","doi":"10.1016/j.apm.2025.116404","DOIUrl":"10.1016/j.apm.2025.116404","url":null,"abstract":"<div><div>Complete traffic data plays an indispensable role in intelligent transportation network management that has great potential to improve traffic safety and alleviate road congestion. However, due to the malfunctions in sensing devices or communication networks, missing data phenomena are ubiquitous in the real world and thus pose formidable challenges to network management. Recent studies successfully exploit a low-rank property of traffic tensor data for missing data recovery. However, they focus on either original domain or transformed domain, which may not suffice to exploit abundant tensor structure information. To contend with this problem, this article proposes a novel dual-domain nonconvex low-rank tensor completion to simultaneously take advantage of the low-rankness of traffic data tensor in both original domain and transformed domain. Specifically, we first devise two nonconvex tensor norms that not only characterize the global low-rank property in both domains but also capture the multi-dimensional correlation along different modes. Then, we further incorporate the local temporal consistency as regularization to leverage the intrinsic temporal continuity. By doing so, our model comprehensively leverages the global low-rankness and local temporal property. To solve the proposed model, following the alternating direction method of multipliers framework, we develop an efficient iterative algorithm and analyze the computational complexity. Numerous experiments on real-world datasets under diverse missing patterns and missing ratios verify the superiority of our algorithm over some leading baseline methods.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116404"},"PeriodicalIF":4.4,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144898378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fractures and thin heterogeneities as Robin-Wentzell interface conditions Robin-Wentzell界面条件下的裂缝和薄非均质性

IF 4.4 2区工程技术

Applied Mathematical Modelling Pub Date : 2025-08-21 DOI: 10.1016/j.apm.2025.116355

Marco Favino

{"title":"Fractures and thin heterogeneities as Robin-Wentzell interface conditions","authors":"Marco Favino","doi":"10.1016/j.apm.2025.116355","DOIUrl":"10.1016/j.apm.2025.116355","url":null,"abstract":"<div><div>We formally derive suitable conditions for modeling thin inclusions as interfaces within heterogeneous diffusion problems formulated in the form of the divergence of a flux. Integration of the governing equations across the aperture of the thin inclusion yields interface conditions of Wentzell type for the flux jump and Robin type for the flux average. The condition on the flux jump involves an unconventional tangential diffusion operator applied to the average of the solution across the interface. The corresponding weak formulation is introduced, providing a framework that is readily applicable to finite element discretizations.</div><div>Extensive numerical validation against well-established benchmark problems demonstrates that this novel modeling technique can handle strong contrasts in material properties between inclusions and their embedding background, as is typical of flow problems in fractured porous media. In addition, numerical tests not only show that the proposed approach can naturally accommodate complex networks of thin inclusions, without the need for their explicit geometric representation, but also that it can accurately describe fractures with variable aperture.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"150 ","pages":"Article 116355"},"PeriodicalIF":4.4,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144898376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0