Advances in Engineering Software最新文献

{"title":"A unified optimization method for non-uniform core configuration of corrugated sandwich panel","authors":"Weilin Lai ,&nbsp;Hui Li ,&nbsp;Fang Hao ,&nbsp;Hu Wang","doi":"10.1016/j.advengsoft.2025.103918","DOIUrl":"10.1016/j.advengsoft.2025.103918","url":null,"abstract":"<div><div>Core configuration significantly affects the performance of sandwich panels. However, existing designs are mostly uniform, despite the potential benefits of non-uniform configurations. Non-uniform design involves variables from different levels, including number, position, and thickness of stiffeners, yet it has not been systematically studied. When attempting to obtain optimized designs, we found that existing methods formulate the problem as a mixed-integer bilevel optimization, which suffers from low efficiency. To address this, we propose a unified optimization method that transforms the bilevel problem into a single-level problem. Specifically, the panel is discretized using equidistant nodes, each assigned a unified design variable, and stiffeners are constructed by connecting activated nodes. This approach enables efficient optimization of non-uniform configurations. To validate the method, we conducted multi-objective optimization on triangular and trapezoidal corrugated cores under static out-of-plane pressure and dynamic planar compression. The results demonstrate that non-uniform designs achieve superior performance compared to uniform configurations. Furthermore, compared to the baseline bilevel optimization method, our approach achieves a higher hypervolume under the same evaluation budget, making it more efficient for designers to rapidly obtain optimized configurations.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"205 ","pages":"Article 103918"},"PeriodicalIF":4.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645100","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}

{"title":"Layout-Enhanced Topology Optimization (LETO): A modular approach for adaptable and manufacturable designs","authors":"Tatsuhito Yoshida ,&nbsp;Takayuki Yamada","doi":"10.1016/j.advengsoft.2025.103907","DOIUrl":"10.1016/j.advengsoft.2025.103907","url":null,"abstract":"<div><div>This paper introduces Layout-Enhanced Topology Optimization (LETO), a modular topology optimization method that extends the potential of the conventional topology optimization. In this approach, a single module shape is optimized to enable adaptation to multiple design objectives by changing the layout through geometrical manipulations applied to the modules. The optimization algorithm simultaneously selects the best layout for each design objective and optimizes the module shape. Numerical examples of a steady-state heat conduction problem are demonstrated to confirm the effectiveness of this method. The results show that, with improved thermal conduction efficiency, the optimized module can be rearranged to suit multiple design objectives, enhancing the adaptability of the conventional topology optimization. LETO has potential applications in mass-production cases, addressing the demand for versatile and manufacturable designs.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"205 ","pages":"Article 103907"},"PeriodicalIF":4.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A linearized multi-directional FE model for bolted connection design and analysis","authors":"Minh-Toan Nguyen ,&nbsp;Semyung Wang","doi":"10.1016/j.advengsoft.2025.103906","DOIUrl":"10.1016/j.advengsoft.2025.103906","url":null,"abstract":"<div><div>The bolted joint is one of the most common connection types used in structures and mechanical systems. Traditionally, bolted connections are designed using certain standards and assumptions to obtain initial designs. These initial designs are then analyzed using analytical or numerical methods to ensure safety conditions. Each of these methods has its advantages and disadvantages. The study presented in this paper introduces a multi-directional finite element (FE) based bolted joint model, which is particularly useful for the verification step using linear static analysis in bolted connection design. This model combines the advantages of both analytical and numerical methods to partially capture the bolted joint behavior in multiple directions and achieve a time-saving, easy-to-use solution with acceptable accuracy. Due to the linearized characteristics, the application of the model can also be expanded to modal analysis for general bolted connection structures. The proposed model was verified using previous findings from other authors, modal testing, and full 3D model analysis. The applications of the model were demonstrated as well as the pros and cons of the proposed approach were pointed out clearly.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"205 ","pages":"Article 103906"},"PeriodicalIF":4.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578052","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}

{"title":"New fast micro-topography estimation algortihms for 5 axis milling","authors":"Yasser Zekalmi,&nbsp;José Antonio Albajez,&nbsp;Sergio Aguado,&nbsp;María José Oliveros","doi":"10.1016/j.advengsoft.2025.103909","DOIUrl":"10.1016/j.advengsoft.2025.103909","url":null,"abstract":"<div><div>Accurately predicting the topography of machined surfaces is vital in industries like aerospace, automotive, and biomedical manufacturing. This paper introduces a novel methodology for fast and precise areal surface micro-topography prediction in 5-axis CNC milling, particularly for finishing processes using ball-end milling tools. Although commercial CAM software can predict the macro-topography of a machined surface, incorporating the cutter edge geometry and its rotational movement is essential for accurately predicting the surface's micro-topography. In this work, three alternative algorithms based on the Z-Map method are proposed: (1) a parallelized version of Z-Map (MOD1) for increased computational efficiency, (2) a swept surface technique (MOD2) for more accurate simulations, and (3) a rounding technique (MOD3) for rapid, precise topography prediction by aligning cutter edge points. The user can choose one of the three algorithms based on computational resources and preferences. These are validated through experimental tests on a 5-axis milling machine under different machining conditions. The results demonstrate that the developed algorithms enhance the prediction of the machined surface's micro-topography, significantly reducing computation time and improving accuracy compared to the traditional Z-map method.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"205 ","pages":"Article 103909"},"PeriodicalIF":4.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562275","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}

{"title":"A novel lightweight combinatorial optimization strategy based on ASA-NLPQL optimization algorithm for front seat skeleton of a passenger car","authors":"Xuan Zhou,&nbsp;Jun Ju,&nbsp;Jiangqi Long","doi":"10.1016/j.advengsoft.2025.103908","DOIUrl":"10.1016/j.advengsoft.2025.103908","url":null,"abstract":"<div><div>This study presents a novel combinatorial optimization strategy to address the challenges of lightweight design for automotive seat skeletons. The proposed approach integrates surrogate modeling with a hybrid optimization algorithm to enhance computational efficiency and solution accuracy. The hybrid algorithm leverages the strengths of global and gradient-based optimization methods by combining Adaptive Simulated Annealing and Non-Linear Programming by Quadratic Lagrangian (ASA-NLPQL). The effectiveness of the ASA-NLPQL hybrid algorithm is validated through two numerical function examples and an engineering optimization case study, and it is subsequently applied to a real-world case study focused on the lightweight optimization design of an automotive seat skeleton. Firstly, the finite element model for modal analysis of the entire front seat skeleton of a passenger car is developed and validated through experimental tests. Key design variables are identified via sensitivity analysis to guide the optimization process. Subsequently, a surrogate model is constructed using sample points generated by optimal Latin hypercube sampling. The combined optimization strategy, based on the surrogate model and hybrid algorithm, is then applied to the optimal design of the passenger car seat skeleton. Optimization results demonstrate a 22.3% reduction in seat weight with negligible impact on vibration performance. Finally, the optimized seat skeleton undergoes various strength tests, with the results confirming that it meets the required strength criteria. These findings demonstrate the effectiveness of the proposed optimization strategy and provide a reliable reference for similar engineering optimization challenges.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"205 ","pages":"Article 103908"},"PeriodicalIF":4.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562274","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}

{"title":"Numerical evaluation of an innovative hybrid seismic control system with amplified energy dissipation","authors":"Mohammad Seddiq Eskandari Nasab ,&nbsp;Mohammad Bafandegan ,&nbsp;Jung-Wuk Hong","doi":"10.1016/j.advengsoft.2025.103898","DOIUrl":"10.1016/j.advengsoft.2025.103898","url":null,"abstract":"<div><div>Seismic protection is vital for mitigating structural damage and enhancing resilience. We propose a novel hybrid energy dissipation system combining viscous and magnetorheological dampers with a spring mechanism and mechanical lever arms. These lever arms amplify drift and velocity, boosting energy dissipation efficiency while reducing the size or number of dampers needed. The system's performance was evaluated through numerical analysis on two prototype structures: a seven-story linear building under harmonic excitation and a three-story nonlinear building under seismic loading. Analyses included passive-on and semi-active modes with a simple adaptive control algorithm. The system significantly reduced displacements, accelerations, and residual deformations. For example, displacements in the seven-story building decreased by up to 83 % under harmonic loading, while the three-story building saw interstory drift reductions of 30 % in passive-on mode and 11 % in semi-active mode. These findings demonstrate the system's potential to enhance seismic resilience, offering a versatile solution for earthquake-resistant design and retrofitting.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"204 ","pages":"Article 103898"},"PeriodicalIF":4.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526654","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}

{"title":"An automatic selective PDF table-extraction method for collecting materials data from literature","authors":"Jianxin Deng ,&nbsp;Gang Liu ,&nbsp;Rui Tang ,&nbsp;Xiusong Wu ,&nbsp;Zheng Yin","doi":"10.1016/j.advengsoft.2025.103897","DOIUrl":"10.1016/j.advengsoft.2025.103897","url":null,"abstract":"<div><div>Table data in scientific literature is an important and economic data source for constructing materials database. The existing PDF table-extraction method is mainly designed for the common table type, which has no difference in various disciplines and does not have the ability to automatically filter the tabular data and extract non-full-framed tables with high precision. In view of this, we propose herein the use of unique coordinates for each object in a PDF and a method of automated table extraction from scientific literature based on text-state characteristics including six stages. In this method, we analyze the special presentation of table content and decode the PDF content stream to detect tables by key words of the table caption, especially use data ontology to filter irrelevant table data, and restore the data structure of tables according to the certainty and uniqueness of character coordinates. The proposed method automatically and accurately extracts table data from scientific literature without relying on table grid lines, thereby overcoming the drawbacks of existing technology for extracting data from three-line tables. The validity and advantages of the proposed method are verified by applying it to squeeze casting literature. Experiments show that the recall rate and precision of the proposed method reach 0.891 and 0.861. The comprehensive performance outperforms the main tools in the market for scientific literature table extraction.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"204 ","pages":"Article 103897"},"PeriodicalIF":4.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519196","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}

{"title":"A novel hybrid wavelet transform for detecting damages in laminated composite cylindrical panels","authors":"Morteza Saadatmorad ,&nbsp;Saman Sadripour ,&nbsp;Alireza Gholipour ,&nbsp;Ramazan-Ali Jafari-Talookolaei ,&nbsp;Samir Khatir ,&nbsp;Mohammad Hassan Shahavi ,&nbsp;Cuong-Le Thanh","doi":"10.1016/j.advengsoft.2025.103895","DOIUrl":"10.1016/j.advengsoft.2025.103895","url":null,"abstract":"<div><div>This paper proposes a hybrid wavelet transform (HWT) to detect local damages in the laminated composite cylindrical panels. This version of wavelet transform is developed to compensate for the weakness of two-dimensional continuous wavelet transforms (2D-CWTs) that are not sensitive to the local abrupt changes in higher scales. The idea is to combine two layers of the 2D-CWT and one layer of the image edges extracted from the first layer of the 2D-CWT. Thus, the novelty of the present work is to propose a new architecture to improve the accuracy of 2D-CWT in damage detection tasks. The finite element method is used to obtain the numerical vibration mode shapes as two-dimensional signals of the damaged laminated composite cylindrical panels. Experimental investigations are conducted to verify the performance of the proposed numerical model. The results indicate that using edge detection algorithms significantly contributes to increasing the accuracy of damage detection using 2D-CWT. The proposed hybrid wavelet transform method greatly enhances damage detection accuracy, particularly for low-level damage. Findings show that the hybrid wavelet transforms can improve the resolution and accuracy of damage detection results of the laminated composite cylindrical panels.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"204 ","pages":"Article 103895"},"PeriodicalIF":4.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511116","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}

{"title":"Analysis of the gas-solid two-phase flow characteristics and the impact of key structural parameters on the separation performance of medium-speed coal mills","authors":"Hailiang Hu,&nbsp;Yiming Li,&nbsp;Hanguang Jin,&nbsp;Biaobiao Lin,&nbsp;Guiqiu Song","doi":"10.1016/j.advengsoft.2025.103896","DOIUrl":"10.1016/j.advengsoft.2025.103896","url":null,"abstract":"<div><div>The EM-type medium-speed mill (EM mill) integrates the functions of crushing, conveying, drying, and separating. It is widely used for grinding coal powder and ores. The mill operates in a \"black box\" environment, where the internal conditions cannot be easily observed. Due to the limitations of the measurement technology and real-time monitoring, describing the complex particle motion within the mill is challenging. Furthermore, the mill has a complex structure, generating large eddies within the grinding chamber that are difficult to completely remove. This often results in non-compliant coal powder fineness and \"over-grinding\" phenomena, which significantly affect the production efficiency. This paper conducts numerical simulations using computational fluid dynamics (CFD) and powder classification methods, in order to study the particle motion characteristics and improve the internal flow field distribution of the mill. This allows to increase the particle transport and separation efficiency. These are then compared with experimental results, showing an error of less than 5 %, which demonstrates that the adopted model accurately predicts the flow characteristics and separation performance of the EM mill. Afterwards, the particle motion inside the mill is analyzed based on the coupling method of Fluent 2022R2 and EDEM 2022. Finally, the impacts of the height of the ash bucket cone and the number of separator blades on the internal flow field distribution and particle separation performance are studied. The obtained results show that the particle motion is significantly affected by the flow field. In addition, the increase of the number of separator blades results in reducing the vortex flow between them in a certain range, which significantly improves the coal powder fineness, at the expense of the high discharge of large particles. The reduction of the height of the ash bucket cone limits the generation of vortex flow in the secondary separation zone, which significantly increases the separation efficiency of the coal powder. This study provide valuable guidance for changing the ash bucket structure and adjusting the number of separator blades, and serves as a reference for improving the separation performance of particles and enhancing the internal flow field in EM mill.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"204 ","pages":"Article 103896"},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510428","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}

{"title":"A multi-objective function for discrete topology optimization in labyrinth seal design problems","authors":"A.S.C. Azevêdo ,&nbsp;E. Moscatelli ,&nbsp;L.N.B.S. Ribeiro ,&nbsp;L.F.N. Sá ,&nbsp;E.C.N. Silva ,&nbsp;R. Picelli","doi":"10.1016/j.advengsoft.2025.103894","DOIUrl":"10.1016/j.advengsoft.2025.103894","url":null,"abstract":"<div><div>Labyrinth seals are commonly used in sealing mechanisms to separate regions with different pressures and minimize leakage along their intricate fluid paths. In this paper, topology optimization is applied to labyrinth seal design via a novel multi-objective expression combining forward and backward flows. However, the traditional strategy is susceptible to the bad local minimum of fluid inlet/outlet closure and the absence of interlaced labyrinth-like solid regions in the final design. The aim is to provide a solution to both issues. In our approach, the labyrinth seal objective is defined by combining fluid flow energy dissipation with vorticity magnitude to design the flow path that should be favored in one direction (forward) while unfavored in the opposite direction (backward). Therefore, we address the optimization problem in the form of simultaneous minimization of forward energy dissipation while maximizing backward vorticity. Volume fraction is assumed as the optimization constraint. The Topology Optimization of Binary Structures (TOBS) method is used to solve the optimization problem. This is a gradient-based method that produces a sequence of linearly approximated problems and solves them via integer linear programming. The steady Navier–Stokes equations govern the fluid motion with the standard Darcy term used for topology optimization. It is demonstrated that the porous material model favors solutions with labyrinths of radial interlacing teeth for higher porosity values and axial interlacing topologies for lower values. Numerical examples are presented for two-dimensional prismatic and axisymmetric problems with real CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> gas properties.</div></div>","PeriodicalId":50866,"journal":{"name":"Advances in Engineering Software","volume":"204 ","pages":"Article 103894"},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478524","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}