Advances in Engineering Software最新文献_第7页

Detection of steel–concrete interface defects in concrete-filled steel tubular columns using the percussion method and dual-branch CNN with multi-modal feature fusion 基于冲击法和多模态特征融合的双分支CNN检测钢管混凝土柱钢-混凝土界面缺陷

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-05-05 DOI: 10.1016/j.advengsoft.2025.103952

Pengfei Pan , Wenwei Yang , Yi Zhang

{"title":"Detection of steel–concrete interface defects in concrete-filled steel tubular columns using the percussion method and dual-branch CNN with multi-modal feature fusion","authors":"Pengfei Pan , Wenwei Yang , Yi Zhang","doi":"10.1016/j.advengsoft.2025.103952","DOIUrl":"10.1016/j.advengsoft.2025.103952","url":null,"abstract":"<div><div>The safety and longevity of Concrete-Filled Steel Tubular (CFST) columns are critically threatened by subsurface defects, which may lead to significant structural risks. In this study, we introduce a novel Dual-Branch Convolutional Neural Network (CNN) Framework with Multi-modal Feature Fusion that integrates time-domain signals and Gramian Angular Field (GAF) image features for enhanced defect detection. By employing a dual-branch architecture, our approach simultaneously captures temporal dynamics and global spectral-spatial patterns, thereby improving the model’s discriminative power and robustness against noise. Field experiments conducted on high-rise building CFST columns validate the method, where the percussion-based detection, corroborated by thermal imaging, achieves a 94.5 % accuracy in identifying void locations. The results demonstrate that our framework not only outperforms traditional non-destructive testing techniques but also offers a reliable and practical solution for structural health monitoring.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103952"},"PeriodicalIF":4.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906798","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

Efficient multi-GPU implementations of preconditioned conjugate gradient method 预条件共轭梯度法的高效多gpu实现

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-05-05 DOI: 10.1016/j.advengsoft.2025.103936

Tailai Ma , Zhihong Gou , Ningyi Xu , Shuli Sun

{"title":"Efficient multi-GPU implementations of preconditioned conjugate gradient method","authors":"Tailai Ma , Zhihong Gou , Ningyi Xu , Shuli Sun","doi":"10.1016/j.advengsoft.2025.103936","DOIUrl":"10.1016/j.advengsoft.2025.103936","url":null,"abstract":"<div><div>Many numerical methods rely on solving sparse linear systems, such as finite element analysis and computational fluid dynamics. In many simulations, solving sparse linear systems has become a bottleneck, often consuming a significant portion of the total simulation time. The Preconditioned Conjugate Gradient (PCG) method is an efficient iterative method for solving large sparse linear systems, and it is well-suited for GPU parallelization. As the scale of the problems to be solved increases, higher efficiency in PCG solvers is critical. This paper proposes two efficient implementations of the PCG method, aimed at further accelerating its computational performance on GPUs. First, we optimize one of the most time-consuming operation SpMV (Sparse Matrix-Vector Multiplication) in PCG using a block storage format for efficient global memory access. To this end, we introduce two novel SpMV algorithms: warp-fixed-mma and warp-balanced-mma. Next, we present two PCG implementations: PCG-cuda-graphs and PCG-persistent-kernel. Both implementations use the proposed SpMV algorithms. The experimental results on the 2904 matrices from the SuiteSparse Matrix Collection show that our best-performing SpMV algorithm in FP64 precision outperforms four latest SpMV methods cuSPARSE, DASP (Specific Dense Matrix Multiply-Accumulate Units Accelerated General Sparse Matrix-Vector Multiplication), CSR5 and TileSpMV by a factor of on average 2.2x, 3.1x, 2.48x and 3.20x on A100, respectively. Compared to the PCG implementation in PETSc (the Portable, Extensible Toolkit for Scientific Computation), the two proposed PCG implementations achieve average speedups of 1.41x and 1.63x on the NVIDIA A100 GPU, and 1.43x and 1.66x on the NVIDIA H100 GPU on 21 representative matrices. Additionally, for large matrices, our proposed multi-GPU parallel PCG-persistent-kernel implementation delivers impressive speedup compared to the single-GPU implementation.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103936"},"PeriodicalIF":4.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904332","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

Developing a rapid detection method for segmentation of durability-induced cracks using U-Net based deep learning models 开发了一种基于U-Net深度学习模型的耐久性裂缝快速分割检测方法

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-05-01 DOI: 10.1016/j.advengsoft.2025.103950

Yılmaz Yılmaz, Safa Nayır

{"title":"Developing a rapid detection method for segmentation of durability-induced cracks using U-Net based deep learning models","authors":"Yılmaz Yılmaz, Safa Nayır","doi":"10.1016/j.advengsoft.2025.103950","DOIUrl":"10.1016/j.advengsoft.2025.103950","url":null,"abstract":"<div><div>Durability cracks in concrete and mortar surfaces are caused by environmental, mechanical and chemical factors. These cracks can adversely affect the long-term durability and strength of concrete. Therefore, it is important to detect cracks in concrete and mortar surfaces at early ages and take precautions. In this scope, in this study, a Graphical User Interface (GUI) was developed for segmentation of cracks in concrete and mortar surfaces using deep learning models. The Alkali-Silica Reaction (ASR) test, which is a durability problem, was performed and a total of 600 images were taken on the test specimens at the end of the 28th day. The images were then augmented eight times using image augmentation techniques to generate a comprehensive dataset. Models with different U-Net network structures such as Classical U-Net, U-Net++, Attention U-Net, Residual U-Net (ResU-Net), Recurrent Residual U-Net (R2U-Net), LinkNet, Recurrent Residual Attention U-Net (R2AU-Net) and DenseU-Net were trained using this database and performance metrics were comparatively investigated. Among the eight different models, R2U-Net is the most powerful model with an F1-Score of 0.901, Intersection over Union (IoU) of 0.867 and AUC of 0.958. Then, to determine the test performance of the model, crack images were taken from different concrete and mortar surfaces and tested in the R2U-Net model. The results of the analysis showed a high accuracy rate between the predicted masks and the true masks. Finally, a GUI was designed to provide the crack segmentation mask image and crack area for easier observation and analysis of crack segmentation. It is expected that this interface will have important contributions to future applications of crack segmentation.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103950"},"PeriodicalIF":4.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895383","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

Study on the dynamic performance of the vehicle-ballastless track system subjected to dislocation of fault zone 断裂带错位作用下车辆-无砟轨道系统动态性能研究

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-26 DOI: 10.1016/j.advengsoft.2025.103938

Zheng Li , Weidong Wang , Lei Xu , Jun Peng

{"title":"Study on the dynamic performance of the vehicle-ballastless track system subjected to dislocation of fault zone","authors":"Zheng Li , Weidong Wang , Lei Xu , Jun Peng","doi":"10.1016/j.advengsoft.2025.103938","DOIUrl":"10.1016/j.advengsoft.2025.103938","url":null,"abstract":"<div><div>China's High-speed railways are now being constructed on a large scale in the complex mountainous regions of the West. However, due to the large number of active fault zones (AFZs) in western China, track structures inevitably need to be laid in fault zones. To understand the impact of small fault dislocations on the mechanical behavior of vehicle-track interaction in the elastic region, this paper establishes a vehicle-track-soil dynamic model. This model employs a novel iterative algorithm to describe and compute the static deformation of the track induced by the AFZ. Besides, the additional deformation of tracks is treated as the e of the vehicle-track-soil interaction system, for depicting its dynamic effects on the interaction system. The validation and an illustrative case are implemented in numerical studies, which demonstrate the effectiveness of the proposed model. The analysis results indicate that the dynamic performance of the vehicle-track interaction system in the vertical direction deteriorates obviously subjected to the dislocation of fault. The high stiffness of slab tracks exacerbates their vulnerability to fault-induced deformations, particularly for the phenomenon that large localized tensile stress occurs under the moving vehicle load. Moreover, the laying angle of the ballastless track is also a significant factor that degrades the performance of the vehicle-track interaction system subjected to fault dislocation, an aspect overlooked in previous research related to railway foundation deformation.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103938"},"PeriodicalIF":4.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873853","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

Inflatable design and deployment morphology of conical Kresling origami structures 锥形Kresling折纸结构的充气设计与展开形态

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-25 DOI: 10.1016/j.advengsoft.2025.103937

Liming Bo , Yao Chen , Xiaodong Feng , Xingwang Cao , Min Tang , Pooya Sareh

{"title":"Inflatable design and deployment morphology of conical Kresling origami structures","authors":"Liming Bo , Yao Chen , Xiaodong Feng , Xingwang Cao , Min Tang , Pooya Sareh","doi":"10.1016/j.advengsoft.2025.103937","DOIUrl":"10.1016/j.advengsoft.2025.103937","url":null,"abstract":"<div><div>Inflatable capsules and tubular structures have been widely used in solar panels, floating platforms, and energy-absorbing components due to their beneficial characteristics, such as lightweight construction and convenient deployment. However, most traditional inflatable capsules require rigidification to maintain their stiffness and deployed shapes, which introduces additional complexity and challenges, especially in space exploration. In this study, we propose an inflatable cone based on the conical Kresling origami pattern, capable of achieving high surface flatness and a large deployment ratio without the need for rigidification. To this end, an improved design method for multi-layer conical origami structures is introduced. The folding and deployment processes of cones with various geometric parameters are analyzed through numerical simulations, focusing on maximum plastic strain, deployment ratio, and surface flatness. The results reveal that conical origami structures with a single chirality exhibit superior surface flatness. Increasing the number of creases and the arc radius can effectively reduce maximum plastic strain. However, excessive creases and an overly large arc radius can negatively impact both the deployment ratio and surface flatness. Additionally, reducing the structure's conicity lowers the deployment ratio and plastic strain but has little effect on surface flatness. The proposed inflatable metallic cone shows strong potential for applications in aerospace and structural engineering.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103937"},"PeriodicalIF":4.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873741","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

Uncertainty quantification of engineering problems using N-body system designs: An overview 应用n体系统设计的工程问题的不确定性量化：概述

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-25 DOI: 10.1016/j.advengsoft.2025.103927

Jan Mašek, Miroslav Vořechovský

{"title":"Uncertainty quantification of engineering problems using N-body system designs: An overview","authors":"Jan Mašek, Miroslav Vořechovský","doi":"10.1016/j.advengsoft.2025.103927","DOIUrl":"10.1016/j.advengsoft.2025.103927","url":null,"abstract":"<div><div>When conducting an uncertainty quantification of computationally intensive models, it is vital that the realizations of the input random variables are consciously selected so that completing of each simulation yields as much new information as possible. To achieve that, a great effort is invested into optimization of uniformity of input sampling points across the design domain.</div><div>The purpose of this paper is threefold: (i) it provides a review of design optimality criteria, with a focus on distance-based criteria that can be viewed in analogy to N-body systems, and includes comparisons to low-discrepancy designs; (ii) it documents, for the first time, that point samples obtained using the authors’ previously developed N-body optimization algorithm Vořechovský et al. (2019), Vořechovský and Mašek (2020) exhibit exceptional uniformity and outperform samples generated by existing methods; and (iii) it explains potential pitfalls of applying N-body analogies too naively — such as neglecting energetic considerations, dimension scaling, and domain boundaries — as well as identifies opportunities for efficient computational implementation. We demonstrate that using these optimized designs in numerical analyses, both in research and engineering practice, leads to either a substantial increase in estimation precision or a reduction in the number of model runs required to achieve a desired estimation error. The performance of the constructed point samples is compared to the sampling methods that are today considered as go-to sampling strategies by researchers and practicing engineers. It is demonstrated that the proposed optimization method is superior to the state-of-the art methods in both robustness as well as estimation error (variance reduction). Inherent limitations for vast point samples posed by a finite computing power are also discussed.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"207 ","pages":"Article 103927"},"PeriodicalIF":4.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873753","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

On the nonlinear dynamic performance of a novel bistability-driven soft robot 一种新型双稳性驱动软机器人的非线性动态性能研究

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-23 DOI: 10.1016/j.advengsoft.2025.103940

Jie Liu , Dezheng Jiang , Zhiyong Li , Junfeng He , Linjie Jian , Hongxin Wang , Guilin Wen , Zhen-Pei Wang , Yi Min Xie

{"title":"On the nonlinear dynamic performance of a novel bistability-driven soft robot","authors":"Jie Liu , Dezheng Jiang , Zhiyong Li , Junfeng He , Linjie Jian , Hongxin Wang , Guilin Wen , Zhen-Pei Wang , Yi Min Xie","doi":"10.1016/j.advengsoft.2025.103940","DOIUrl":"10.1016/j.advengsoft.2025.103940","url":null,"abstract":"<div><div>Soft robots have many advantages, including large deformation and excellent motion capability in complex environments. Finding the dynamic behaviour of soft robots is essential for their control and performance optimization. This work has theoretically and experimentally studied the nonlinear dynamic performances of a novel bistability-driven soft robot. The bistable structure consists of a soft spine, an origami shell, and tension springs, which is the critical component to drive the soft robot to move fast, but also generates complex nonlinear dynamic behavior. A nonlinear dynamic model of the soft robot is established based on the piecewise constant curvature method, the generalized coordinate, and Lagrange equations. Extensive experiments have been conducted to investigate the nonlinear dynamic performance of the soft spine, the bistable structure, and the soft robot. Dynamic tests have verified the effectiveness of the theoretical model in terms of the bending angle, velocity, and acceleration changes with time and the deformation morphology at limit states. Results show that the soft robot can switch between two stable states in 0.5 s and rapidly stabilize, enabling rapid movement.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"206 ","pages":"Article 103940"},"PeriodicalIF":4.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859048","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

Size-dependent topology optimization for eigenfrequency maximization of microplates using consistent couple stress theory 基于一致耦合应力理论的微孔板特征频率最大化的尺寸相关拓扑优化

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-23 DOI: 10.1016/j.advengsoft.2025.103941

M.Z. Roshanbakhsh, S.M. Tavakkoli

{"title":"Size-dependent topology optimization for eigenfrequency maximization of microplates using consistent couple stress theory","authors":"M.Z. Roshanbakhsh, S.M. Tavakkoli","doi":"10.1016/j.advengsoft.2025.103941","DOIUrl":"10.1016/j.advengsoft.2025.103941","url":null,"abstract":"<div><div>This paper aims to maximize the fundamental eigenfrequency of the Mindlin microplate using the topology optimization approach and consistent couple stress theory (C<img>CST). The modified bound formulation and the modified solid isotropic material with penalization (SIMP) approach are implemented to circumvent some undesired issues including repeated eigenfrequencies and localized mode. A four-node finite element with 80 degrees of freedom is used to meet the C<img>CST-based C<sup>1</sup> continuity requirements, which reduces to 48 degrees of freedom when stretching deformation is neglected. The generalized optimality criteria method (G-OCM) is adopted to update the design variables. Subsequently, undesired frequency bands are removed by using a continuously differentiable frequency band constraint (FBC). The optimal topology for in-plane and out-of-plane vibration as well as their coupling mode are presented. Also, the optimal distribution of the nano-reinforcement phase to maximize the eigenfrequency of the nanocomposite microplate is determined. To achieve this, the reinforcement-phase element volume fraction and a special unified homogenization function, instead of SIMP, are considered for the design variable and material properties interpolation scheme, respectively. The small-scale effects are investigated by using some benchmark examples, which reveal that as in-plane dimensions approach the length scale parameter, the optimal topology will no longer resemble the classical form. Moreover, the obtained results show that the proposed nano-reinforcement design significantly increases the microplate fundamental eigenfrequency by the addition of only 1 % of reduced graphene oxide (rGO).</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"206 ","pages":"Article 103941"},"PeriodicalIF":4.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864889","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

Integrating custom constitutive models into FEniCSx: A versatile approach and case studies 集成自定义本构模型到FEniCSx：一个通用的方法和案例研究

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-20 DOI: 10.1016/j.advengsoft.2025.103922

Sjard Mathis Rosenbusch, Philipp Diercks, Vitaliy Kindrachuk, Jörg F. Unger

{"title":"Integrating custom constitutive models into FEniCSx: A versatile approach and case studies","authors":"Sjard Mathis Rosenbusch, Philipp Diercks, Vitaliy Kindrachuk, Jörg F. Unger","doi":"10.1016/j.advengsoft.2025.103922","DOIUrl":"10.1016/j.advengsoft.2025.103922","url":null,"abstract":"<div><div>The development and integration of user-defined constitutive relationships into finite element (FE) tools using standardized interfaces play a pivotal role in advancing the capabilities of FE solvers for structural mechanics applications. While commercial FE solvers like Abaqus and Ansys have designed their interfaces to provide custom stresses, tangents, and updated history variables, the open-source solver FEniCSx remains efficient only when the constitutive update has an analytical representation. This restricts the application of FEniCSx for non-linear structural mechanics.</div><div>Since FEniCSx has become a powerful and popular open-source tool for solving partial differential equations, particularly due to its automatic computation of Hessians, we aim to develop a generalized interface to enhance its capability for constitutive modeling. This approach will address complex constitutive equations that require iterative solutions at the quadrature point level. Specific implementation challenges, such as using return-mapping procedures, can then be managed commonly. The provided interface for custom constitutive models offers a versatile way to implement them in various languages, including C++, Python, Rust, and Fortran. Finally, with UMATs for viscoplastic models as an example, we demonstrate how existing user subroutines can be incorporated into the interface and utilized within the FEniCSx framework.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"206 ","pages":"Article 103922"},"PeriodicalIF":4.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850693","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 rapid reconstruction strategy of full-domain temperature field based on discrete measurement points for electronics thermal management 基于离散测量点的电子热管理全域温度场快速重建策略

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-04-19 DOI: 10.1016/j.advengsoft.2025.103935

Yuwei Ye , Qing Ai , Xu Zhang , Meng Liu , Yong Shuai

{"title":"A rapid reconstruction strategy of full-domain temperature field based on discrete measurement points for electronics thermal management","authors":"Yuwei Ye , Qing Ai , Xu Zhang , Meng Liu , Yong Shuai","doi":"10.1016/j.advengsoft.2025.103935","DOIUrl":"10.1016/j.advengsoft.2025.103935","url":null,"abstract":"<div><div>Dynamic thermal management of multi-heat-source systems increasingly relies on full-domain thermal analysis and evaluations in real-time. However, the conventional discrete measurements and reconstruction techniques both struggle to capture the global temperature field evolution due to the real-time uncertainty of operating conditions. In addition, temperature field inversion of heat-source systems in the small data regime is also a challenging problem to be solved in practical engineering systems. Therefore, a rapid reconstruction strategy based on a small dataset and sparse sensors is described, herein to monitor the full-domain thermal states online, irrespective of variable operating conditions. Specifically, by dimensionality reduction, a series of low-dimensional eigenvectors can be identified from a small high-fidelity dataset under diverse operating conditions, characterizing the most dominant spatial distribution and evolutionary patterns of the thermal field. Online reconstruction is driven by dynamically adjusting the eigenvector coefficients by minimizing the error between real-time measurements and predictions. The global state is further estimated via assembling the order-reduced eigenvectors in a specific formula. In addition, QR decomposition is integrated for robust reconstruction. The feasibility and potential of the reconstruction technique was proved by analytical nondimensionalized temperature models. Finally, an extensive evaluation was concluded by referring to the simulation cases of a distributed multi-heat-source system with anisotropic thermal conductivity and in variable environments. The reconstruction results demonstrate the effectiveness and fast dynamic response of this approach, which can facilitate the synchronized monitoring of the global thermal distribution and effectively assist in regulating internal heat transport.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"206 ","pages":"Article 103935"},"PeriodicalIF":4.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850695","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