Advances in Engineering Software最新文献_第8页

Approximate analytical/numerical solutions for the seismic response of rigid walls retaining a transversely isotropic poroelastic soil 横观各向同性孔弹性土刚性墙地震响应的近似解析/数值解

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-02-03 DOI: 10.1016/j.advengsoft.2025.103876

Qingyuan Gong , Edmond V. Muho , Niki D. Beskou , Ying Zhou

{"title":"Approximate analytical/numerical solutions for the seismic response of rigid walls retaining a transversely isotropic poroelastic soil","authors":"Qingyuan Gong , Edmond V. Muho , Niki D. Beskou , Ying Zhou","doi":"10.1016/j.advengsoft.2025.103876","DOIUrl":"10.1016/j.advengsoft.2025.103876","url":null,"abstract":"<div><div>Three approximate analytical solutions for the problem of the seismic response of two rigid cantilever walls retaining a transversely isotropic poroelastic soil layer over bedrock are presented under conditions of plane strain and time harmonic ground motion. These approximate solutions come as a result of various reasonable simplifications concerning various response quantities of the problem, which reduce the complexity of the governing equations of motion. The method of solution in all the cases is the same with that used for obtaining the exact solution of the problem, i.e., expansion of response quantities in the frequency domain in terms of sine and cosine Fourier series along the horizontal direction and solution of the resulting system of ordinary differential equations with respect to the vertical coordinate in conjunction with the boundary conditions. The first approximate solution is obtained on the assumption of neglecting all the terms of the equations of motion associated with the fluid acceleration. The second approximate solution is obtained on the assumption that the fluid displacements are equal to the corresponding solid displacements. The third approximate solution is obtained as the sum of the second approximate solution for the whole domain plus a correction inside a boundary layer at the free soil. All three approximate solutions are compared with respect to their accuracy against the exact solution and useful conclusions pertaining the approximate range of the various parameters, like porosity, permeability and anisotropy indices, for minimization of the approximation error are drawn.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103876"},"PeriodicalIF":4.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179360","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

An application of machine learning for geometric optimization of a dual-throat bent nozzle 机器学习在双喉弯喷嘴几何优化中的应用

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-02-03 DOI: 10.1016/j.advengsoft.2025.103869

Homin Kim, Dong-Hun Han, Tae Hee Lee, Jung-Wuk Hong

{"title":"An application of machine learning for geometric optimization of a dual-throat bent nozzle","authors":"Homin Kim, Dong-Hun Han, Tae Hee Lee, Jung-Wuk Hong","doi":"10.1016/j.advengsoft.2025.103869","DOIUrl":"10.1016/j.advengsoft.2025.103869","url":null,"abstract":"<div><div>The optimal thrust shape for a dual-throat bent nozzle (DTBN), designed as a hybrid thrust vectoring nozzle, is derived through machine learning. A compressible, steady-state numerical analysis using the <span><math><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></math></span> SST model is employed for model construction. The main geometric parameters that determine the shape of the DTBN are selected as the convergence angle <span><math><msub><mrow><mi>θ</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span>, divergence angle <span><math><msub><mrow><mi>θ</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span>, and cavity length <span><math><msub><mrow><mi>l</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span>. By varying these parameters, DTBN models with a total of 600 different geometries are generated, and the axial and normal forces at the nozzle exit are observed to derive the thrust magnitude and thrust vectoring angle. A model that can accurately predict the correlation between input and output parameters is built by comparing various machine learning algorithms. The model using the random forest regression algorithm shows the best performance. Based on this developed machine learning model, optimized shapes of the DTBN are presented. The optimally designed DTBNs are expected to contribute to the development of a new system with more convenient thrust control.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103869"},"PeriodicalIF":4.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143178990","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

Research and implementation of an online platform for efficient and accurate ship hull design 高效、准确船体设计在线平台的研究与实现

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-02-01 DOI: 10.1016/j.advengsoft.2025.103870

Yi-zheng Yang, Yue-hui Shu, Guang-nian Li, Lin Du, Hai-peng Guo

{"title":"Research and implementation of an online platform for efficient and accurate ship hull design","authors":"Yi-zheng Yang, Yue-hui Shu, Guang-nian Li, Lin Du, Hai-peng Guo","doi":"10.1016/j.advengsoft.2025.103870","DOIUrl":"10.1016/j.advengsoft.2025.103870","url":null,"abstract":"<div><h3>Motivation</h3><div>With the development of computer graphics in front-end technology and internet applications, there are many universal online modeling tools like Spline and Vectary. However, ship hull design requires specific constraints like displacement volume and standard deformation algorithms such as Lackenby and Free-Form deformation (FFD).</div></div><div><h3>Solution</h3><div>This study developed an online platform of ship hull parametric modeling and design called Ship Hull Iterative Parametrization Online (SHIP Online). Firstly, three deformation methods—linear,interactive FFD, and combined deformation—were implemented using JavaScript and Python. Fast Quadric Mesh Simplification (FQMS) and Nelder-Mead optimization were introduced for combined deformation. Secondly, the user interface was built with HTML5, JavaScript, and CSS. Thirdly, the synchronization and data transmission issues between front and back-end were handled by Django and $. ajax. Finally, the platform would be deployed on a cloud server for multi-system access.</div></div><div><h3>Result</h3><div>The DTMB-5415 standard model was used to evaluate the accuracy, efficiency, and functions of calculations and deformations in SHIP Online. The errors of hydrostatic parameters were nearly 0.0 %. With a 90 % optimal simplification rate and parameter errors under 0.001, combined deformation efficiency improved by 87.78 % and 55.15 % compared to deformation without FQMS and other software. Functional and user testing shows that the functions can be stably and normally executed.</div></div><div><h3>Conclusion</h3><div>By integrating ship deformation algorithms and design constraints with the front-end technology, SHIP Online provides a Web-based rapid hull design platform instead of traditional 3D modeling client software.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103870"},"PeriodicalIF":4.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179362","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

Thermomechanical free vibration buckling of FG graphene-reinforced doubly-curved sandwich shells FG石墨烯增强双弯曲夹层壳的热力学自由振动屈曲

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-01-31 DOI: 10.1016/j.advengsoft.2025.103875

Mustafa Eroğlu , Mehmet Akif Koç , İsmail Esen

{"title":"Thermomechanical free vibration buckling of FG graphene-reinforced doubly-curved sandwich shells","authors":"Mustafa Eroğlu , Mehmet Akif Koç , İsmail Esen","doi":"10.1016/j.advengsoft.2025.103875","DOIUrl":"10.1016/j.advengsoft.2025.103875","url":null,"abstract":"<div><div>This study explores the thermomechanical free vibration and buckling behavior of doubly-curved sandwich shell structures with a core of FG graphene-reinforced foam and metal or ceramic face layers. Using Hamilton's principle and a Navier-type solution method, the governing equations and boundary conditions for simply supported, functionally graded doubly-curved shells are derived. The numerical results are validated through comparison with existing literature. The analysis focuses on the effects of the material grading index, foam void ratio, graphene volume fraction, side-to-thickness ratio, and temperature variations. Notably, it was observed that as <em>R<sub>1</sub></em> increases from α to 10α, the buckling temperature significantly decreases, highlighting a reduction in thermal stability with increasing radii or inverse correlation between <em>R<sub>1</sub></em> and <em>R<sub>2</sub></em>. These findings reveal unexpected thermal instability trends that could influence future design considerations for high-temperature applications. This study provides novel insights into the thermomechanical behavior of advanced sandwich structures, offering valuable contributions to the field in light of evolving technological needs.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103875"},"PeriodicalIF":4.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179361","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 composite particle swarm optimization algorithm with future information inspired by non-equidistant grey predictive evolution for global optimization problems and engineering problems 基于非等距灰色预测进化的未来信息复合粒子群优化算法用于全局优化问题和工程问题

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-01-31 DOI: 10.1016/j.advengsoft.2025.103868

Rui Hao , Zhongbo Hu , WenTao Xiong , Shaojie Jiang

{"title":"A composite particle swarm optimization algorithm with future information inspired by non-equidistant grey predictive evolution for global optimization problems and engineering problems","authors":"Rui Hao , Zhongbo Hu , WenTao Xiong , Shaojie Jiang","doi":"10.1016/j.advengsoft.2025.103868","DOIUrl":"10.1016/j.advengsoft.2025.103868","url":null,"abstract":"<div><div>Particle swarm optimization (PSO) and its numerous performance-enhancing variants are a kind of stochastic optimization technique based on collaborative sharing of swarm information. Many variants took current particles and historical particles as current and historical information to improve their performance. If future information after each current swarm can be mined to participate in collaborative search, the algorithmic performance could benefit from the comprehensiveness of the information including historical, current and future information. This paper proposes a composite particle swarm optimization algorithm with future information inspired by non-equidistant grey predictive evolution, namely NeGPPSO. The proposed algorithm firstly employs non-equidistant grey predictive evolution algorithm to predict a future particle as future information for each particle of a current swarm. Secondly, four particles including prediction particle, particle best and swarm best of the current swarm, and a history memory particle are used as guide particles to generate four candidate positions. Finally, the best one in the four positions is greedily selected as an offspring particle. Numerical experiments are conducted on 42 benchmark functions given by the Congress on Evolutionary Computation 2014/2022 and 3 engineering problems. The experimental results demonstrate the overall advantages of the proposed NeGPPSO over several state-of-art algorithms.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103868"},"PeriodicalIF":4.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179369","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

Deep neural network based head injury criterion estimation for more efficient pedestrian protection performance evaluation in bonnet structure design 基于深度神经网络的头部损伤准则估计在引擎盖结构设计中更有效地评估行人保护性能

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-01-23 DOI: 10.1016/j.advengsoft.2025.103867

Tianci Zhang , Weiwei Wang , Bo Li , Ting Zeng , Fanliang Meng

{"title":"Deep neural network based head injury criterion estimation for more efficient pedestrian protection performance evaluation in bonnet structure design","authors":"Tianci Zhang , Weiwei Wang , Bo Li , Ting Zeng , Fanliang Meng","doi":"10.1016/j.advengsoft.2025.103867","DOIUrl":"10.1016/j.advengsoft.2025.103867","url":null,"abstract":"<div><div>In the early development stage of a new car model, fast evaluation of pedestrian protection performance is required to accelerate the bonnet structure design process. Current evaluation methods rely on finite element (FE) simulation to calculate the Head Injury Criterion (HIC) values at specified points on the bonnet, before proceeding to the more expensive real-world impact test using headform impactors. However, the FE based approach typically takes several days to complete the meshing, boundary condition setting and HIC calculation to evaluate a single design candidate. To further increase the evaluation efficiency, this paper presents a novel HIC estimation approach based on deep learning. An end-to-end deep neural network model is proposed which can directly generate the HIC value without resorting to FE methods. It uses seven variables pertaining to the panel height, structural difference, thickness and head type as the input based on the definition of HIC. Convolution layers are utilised to aggregate the surrounding structural information for each target point. To demonstrate the effectiveness of the proposed approach, cross validation results are presented based on a dataset of over five thousands target points collected from 28 cars. For the green target regions, the average HIC estimation accuracy is 93.1 %, which outperforms the result of 83 % reported in previous work. A comparison with the traditional support vector regression method demonstrates the advantages of the proposed approach.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103867"},"PeriodicalIF":4.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179368","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

Data integration framework for multi-level information modelling and numerical analysis of deteriorated RC bridges 退化混凝土桥梁多层次信息建模与数值分析的数据集成框架

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-01-07 DOI: 10.1016/j.advengsoft.2024.103860

Mohamed Ayham Alsharif , Georgia Thermou , Jelena Ninic , Walid Tizani

{"title":"Data integration framework for multi-level information modelling and numerical analysis of deteriorated RC bridges","authors":"Mohamed Ayham Alsharif , Georgia Thermou , Jelena Ninic , Walid Tizani","doi":"10.1016/j.advengsoft.2024.103860","DOIUrl":"10.1016/j.advengsoft.2024.103860","url":null,"abstract":"<div><div>Structural assessment of deteriorated bridges is a vital step in the decision-making process for asset management. This paper proposes a novel Building Information Modelling (BIM) and Finite Element (FE) integration framework to analyse and retrofit damaged Reinforced Concrete (RC) bridges. The drive behind the framework is to increase the efficiency and accuracy of structural assessment. To this end, a software tool called Bridge Damage Information Modeller (BriDIM) is developed. Two-way automated data interpretation and exchange between BIM and FE is created to allow for the evaluation of the residual structural capacity against limit states based on a comprehensive multi-level numerical model. BriDIM automatically feedback the FE analysis results into BIM environment for visualisation. The research findings suggest that utilising BIM as a database that includes structural specifications, damage information and retrofitting aspects brings benefits in terms of consistency, modelling and computational efficiency throughout the life cycle of a structure. The proposed framework transforms the way we approach assessments by consolidating all mechanical damage-related information into one 3D visualised BIM model. Ultimately BriDIM holds potential in facilitating the development of Digital Twins for existing structures. The model can be used to create scenarios of various damage combinations and provide a reliable tool to simulate the current condition of the bridge and the expected conditions of the bridge in case of damage propagation or change in environmental conditions.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103860"},"PeriodicalIF":4.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179918","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 of influencing factors of performance in novel vertical roller mills 新型立辊轧机性能影响因素的研究

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2025-01-04 DOI: 10.1016/j.advengsoft.2024.103858

Hailiang Hu , Yiming Li , Yunlong Lu , Xuejun Wang , Guiqiu Song

{"title":"Study of influencing factors of performance in novel vertical roller mills","authors":"Hailiang Hu , Yiming Li , Yunlong Lu , Xuejun Wang , Guiqiu Song","doi":"10.1016/j.advengsoft.2024.103858","DOIUrl":"10.1016/j.advengsoft.2024.103858","url":null,"abstract":"<div><div>To optimize the particle motion characteristics in a Vertical Roller Mill (VRM), this study proposes incorporating spiral blades to the outer walls of the ash bucket and the outside of the separator. This design utilizes the space between the ash bucket, separator, middle shell, and upper shell to create specific channels for discharging particles outside the mill. The study employs computational fluid dynamics and powder classification methods to perform a comprehensive numerical analysis of the new VRM. By evaluating the flow field distribution, particle motion characteristics, and utilizing the <strong><em>Q</em></strong> criterion, the research identifies three critical parameters that improve the mill's performance: the width, angle, and number of spiral blades. Numerical analysis results reveal that as the width of the spiral blades increases, both the airflow trajectory and flow field distribution improve, thereby facilitating particle transport. When the angle of the spiral blades decreases, the airflow trajectory aligns more closely with the rotation direction of the blades, which is more conducive to discharging particles from the VRM. Furthermore, as the number of spiral blades increases, the airflow velocity within the spiral channel rises, leading to enhanced particle motion characteristics affected by the fluid. When the spiral blades are fully enclosed, with two turns and eight blades, the vortex distribution becomes more regular and the flow field stabilizes, which reduces unnecessary material recirculation. This study provides valuable guidance for optimizing the structure of the VRM and offers references for improving its internal flow fields, enhancing separation performance, and reducing energy consumption.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"202 ","pages":"Article 103858"},"PeriodicalIF":4.0,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179919","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

Implementation of a three-dimensional numerical model for the filling process in Liquid Composite Molding on polyhedral meshes 在多面体网格上实现了液体复合材料成型充型过程的三维数值模型

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2024-12-30 DOI: 10.1016/j.advengsoft.2024.103859

Junchun Ding , Hao Luo , Yibo Wu , Wuyang Yue , Xianyang Li , Helezi Zhou , Zhigao Huang , Huamin Zhou

{"title":"Implementation of a three-dimensional numerical model for the filling process in Liquid Composite Molding on polyhedral meshes","authors":"Junchun Ding , Hao Luo , Yibo Wu , Wuyang Yue , Xianyang Li , Helezi Zhou , Zhigao Huang , Huamin Zhou","doi":"10.1016/j.advengsoft.2024.103859","DOIUrl":"10.1016/j.advengsoft.2024.103859","url":null,"abstract":"<div><div>In this paper, a three-dimensional, two-phase numerical model based on polyhedral meshes was developed to simulate the resin-filling process in Liquid Composite Molding (LCM). The Algebraic Volume of Fluid (VOF) method tracked the resin flow and the finite volume method (FVM) was applied for stable numerical discretization and solution. The numerical model was validated by unidirectional flow experiments, with the maximum error observed at the flow front being within 5.00 %. Subsequently, the performance of polyhedral meshes in LCM simulations was compared with that of hexahedral and tetrahedral meshes, following the mesh-independence analysis. The results show that the accuracy of the model using polyhedral cells is close to hexahedral cells and higher than tetrahedral cells. The cell number of polyhedral cases is about half that of hexahedral cases and a quarter to a third of tetrahedral cases, assuming similar computational accuracy and mesh size. Polyhedral meshes consume the least computational resources, slightly less than hexahedral meshes and approximately one-third of tetrahedral meshes. Furthermore, polyhedral meshes have a similar level of mesh generation to that of the tetrahedra and are better adapted to complex geometries. Numerical modeling utilizing polyhedral meshes is advantageous for large-scale and complex-shaped parts.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"201 ","pages":"Article 103859"},"PeriodicalIF":4.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183453","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

Stability of rectangular tunnels in cohesive-frictional soil under surcharge loading using isogeometric analysis and Bayesian neural networks 基于等几何分析和贝叶斯神经网络的堆载黏结-摩擦土矩形隧道稳定性研究

IF 4 2区工程技术

Advances in Engineering Software Pub Date : 2024-12-30 DOI: 10.1016/j.advengsoft.2024.103861

Minh-Toan Nguyen , Tram-Ngoc Bui , Jim Shiau , Tan Nguyen , Thoi-Trung Nguyen

{"title":"Stability of rectangular tunnels in cohesive-frictional soil under surcharge loading using isogeometric analysis and Bayesian neural networks","authors":"Minh-Toan Nguyen , Tram-Ngoc Bui , Jim Shiau , Tan Nguyen , Thoi-Trung Nguyen","doi":"10.1016/j.advengsoft.2024.103861","DOIUrl":"10.1016/j.advengsoft.2024.103861","url":null,"abstract":"<div><div>This study evaluates the stability of rectangular tunnels in cohesive-frictional soils under surcharge loading using a combination of IsoGeometric Analysis and artificial neural networks. A dataset of 12,946 samples was generated automatically to analyze a wide range of soil profiles and tunnel geometries. Stability solutions were derived using IsoGeometric Analysis coupled with second-order cone programming, enabling precise and efficient assessments of ultimate surcharge loading. A key contribution of this study is the development of a closed-form solution through a Bayesian regularized neural network, which significantly improves accuracy compared to existing methods. Advanced data visualization techniques, including two- and three-dimensional partial dependency plots, were used to reveal complex relationships among design parameters. Sensitivity analyses provided valuable insights for optimizing tunnel designs, enhancing decision-making processes in geotechnical engineering. This study aims to equip engineers with practical tools for designing rectangular tunnels in real-world applications.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"201 ","pages":"Article 103861"},"PeriodicalIF":4.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182901","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