Applications in engineering science最新文献_第3页

Influence of one-side wart-type roughness on flow dynamics in open channels: experimental and statistical analysis 单侧疣型粗糙度对明渠流动动力学的影响：实验和统计分析

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-12-14 DOI: 10.1016/j.apples.2025.100283

Hossein Sohrabzadeh Anzani, Sameh Ahmed Kantoush, Sohei Kobayashi

{"title":"Influence of one-side wart-type roughness on flow dynamics in open channels: experimental and statistical analysis","authors":"Hossein Sohrabzadeh Anzani, Sameh Ahmed Kantoush, Sohei Kobayashi","doi":"10.1016/j.apples.2025.100283","DOIUrl":"10.1016/j.apples.2025.100283","url":null,"abstract":"<div><div>Accurate estimation of Manning’s roughness coefficient (<em>n</em>) is critical for modeling open-channel flow dynamics, particularly in steep-gradient streams where conventional empirical methods often fail to represent complex resistance mechanisms. This study enhances the understanding of hydraulic resistance through controlled experiments conducted in a 7-m Plexiglas flume at the Ujigawa Hydraulic Laboratory, Kyoto University. Two experimental conditions were examined: a smooth channel, serving as a reference case, and a channel with one-sided wart-type roughness installed at 20-cm intervals. Measurements included velocity profiles and energy dissipation patterns, with emphasis on the cumulative downstream effects of roughness. The rough-bed condition exhibited skimming flow and localized turbulence, captured through three-dimensional velocity measurements and heatmap analyses. This is the first controlled study of one-sided (asymmetric) hemispherical wart-type roughness in steep open channels (<em>S</em>/<em>K</em> ≈ 5.71, wake-interference regime). Unlike symmetric roughness, the unilateral arrangement generates lateral secondary currents and a cumulative downstream increase of Manning’s n by up to 40 %. Statistical testing confirmed that roughness-induced differences were highly significant (<em>p</em> = 0.000741), while sensitivity analysis demonstrated the strong dependence of <em>n</em> on roughness density. The findings underscore the necessity of accounting for spatially variable roughness in hydraulic models.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100283"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanics and thermodynamics: A link between the two theories 力学和热力学：两个理论之间的联系

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.apples.2026.100297

Henri Gouin

引用次数: 0

Hybrid electromagnetic–piezoelectric vibration energy harvester for harsh temperature environments 用于恶劣温度环境的电磁-压电混合振动能量采集器

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2026-02-12 DOI: 10.1016/j.apples.2026.100305

Muhammad Zafar Ijaz , Farid Ullah Khan

{"title":"Hybrid electromagnetic–piezoelectric vibration energy harvester for harsh temperature environments","authors":"Muhammad Zafar Ijaz , Farid Ullah Khan","doi":"10.1016/j.apples.2026.100305","DOIUrl":"10.1016/j.apples.2026.100305","url":null,"abstract":"<div><div>This study presents a hybrid vibration energy harvester developed for operation in harsh temperature environments. The device features a single-degree-of-freedom bimorph cantilever beam that incorporates electromagnetic and piezoelectric transduction mechanisms. The harvester performance was experimentally tested under low-frequency sinusoidal vibrations (6–11 Hz) and low acceleration amplitudes (0.04–0.06 g). At a room temperature of 25 °C and a constant acceleration of 0.06 g, the electromagnetic transducer generated a peak output voltage of 0.641 V and a power of 4.11 mW across an optimal load of 100 Ω, whereas the piezoelectric transducer reached a maximum voltage of 5.94 V, with a corresponding power of 1.01 mW across an optimal resistance of 35 kΩ. Temperature-dependent tests were performed over the range of -10 °C to 80 °C at a constant acceleration of 0.04 g. The results showed that both the output power and resonance frequency decreased with increasing temperature, whereas sub-room temperatures caused moderate power reduction and increased resonance frequency. The electromagnetic transducer produced a peak power of 1.82 mW, whereas the piezoelectric transducer produced 0.44 mW at 25 °C. When the temperature increased to 80 °C, the power of the electromagnetic transducer decreased by 50 %, whereas that of the piezoelectric transducer decreased by 60 %. When the temperature was lowered from 25 to −10 °C, the maximum power of the electromagnetic transducer decreased by 11 %, and 14 % for the piezoelectric transducer, respectively. This study demonstrates the feasibility of using this hybrid system as a self-powered source for wireless sensors at extreme temperatures.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100305"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147420836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and validation of finite element model of milling thin-walled part 铣削薄壁件有限元模型的建立与验证

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-12-15 DOI: 10.1016/j.apples.2025.100285

Nguyen Thi Anh , Tran Thanh Tung

{"title":"Development and validation of finite element model of milling thin-walled part","authors":"Nguyen Thi Anh , Tran Thanh Tung","doi":"10.1016/j.apples.2025.100285","DOIUrl":"10.1016/j.apples.2025.100285","url":null,"abstract":"<div><div>Thin-walled components are widely used in aerospace and automotive applications due to their high stiffness-to-weight ratio but are highly susceptible to deformation during milling, resulting in dimensional errors and reduced surface quality. In this study, a three-dimensional finite element model (FEM) was developed and experimentally validated to investigate the force–deflection behavior of a thin-walled aluminum workpiece with dimensions 130 × 2.5 × 60 mm. The experimental tests were conducted on a HAAS VF-2 CNC machining center using a 12 mm, 4-flute end mill, while the FEM was constructed with refined meshing and boundary conditions replicating the clamping and cutting parameters. Cutting force predictions in the X, Y, and Z directions showed good agreement with experimental measurements, with minor discrepancies attributed to fixture compliance and tool–workpiece contact assumptions. Displacement fields and time-history responses revealed progressive wall deflection, with maximum values of approximately 0.06 mm occurring at the free edge, consistent with experimental observations. The validated model demonstrates that FEM can effectively capture both force and deflection trends in thin-wall milling, providing a reliable framework for process planning, parameter optimization, and machining error control in precision manufacturing.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100285"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Endovascular repair of aortic dissection with a bioresorbable patch: Computational and experimental study 生物可吸收贴片血管内修复主动脉夹层：计算与实验研究

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-12-03 DOI: 10.1016/j.apples.2025.100277

Marta I. Bracco , Francesc Canalejo-Codina , Agustina Giuliodori , Andrea Montanino , Alejandro Aranda , Jordi Martorell , Eduardo Soudah

{"title":"Endovascular repair of aortic dissection with a bioresorbable patch: Computational and experimental study","authors":"Marta I. Bracco , Francesc Canalejo-Codina , Agustina Giuliodori , Andrea Montanino , Alejandro Aranda , Jordi Martorell , Eduardo Soudah","doi":"10.1016/j.apples.2025.100277","DOIUrl":"10.1016/j.apples.2025.100277","url":null,"abstract":"<div><div>This study introduces an experimentally-calibrated finite-element framework to predict the endovascular sealing performance of a bioresorbable patch for aortic dissection repair. The patch–aortic wall interaction was modeled using an adhesion-enabled contact formulation, with parameters derived from a custom dye-penetration test to replicate in-vivo tissue adhesion. A parametric analysis assessed the impact of tear size (10–20 mm), tear morphology (round vs. circumferential ellipse), and deployment angle (5<span><math><mo>°</mo></math></span>–20<span><math><mo>°</mo></math></span>) on patch sealing efficiency, wall compliance, and local stress distribution under physiological loading. Tear geometry was identified as the dominant determinant of sealing: large round tears reduced effective apposition, while circumferential elliptical tears promoted full wall coupling at lower deployment forces. Increasing deployment angle raised insertion forces and impaired circumferential contact. Importantly, pulsatile hemodynamic loading demonstrated that the patch preserved native wall compliance without inducing adverse stress concentrations. By integrating experimental calibration with computational modeling, this framework offers a quantitative tool to evaluate anatomical and procedural factors influencing endovascular sealing. These insights may support the design optimization and clinical translation of resorbable patch-based strategies for aortic dissection repair.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100277"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145659099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Further remarks on isotropic extension of anisotropic constitutive functions via structural tensors 再论各向异性本构函数经结构张量的各向同性扩展

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2026-01-17 DOI: 10.1016/j.apples.2026.100295

Chi-Sing Man , Joe D. Goddard

{"title":"Further remarks on isotropic extension of anisotropic constitutive functions via structural tensors","authors":"Chi-Sing Man , Joe D. Goddard","doi":"10.1016/j.apples.2026.100295","DOIUrl":"10.1016/j.apples.2026.100295","url":null,"abstract":"<div><div>For the original method of isotropic extension of anisotropic constitutive function via structural tensors to work, a necessary condition is that the symmetry group <span><math><mrow><mi>G</mi></mrow></math></span> of the anisotropic solid can be characterized as the intersection of stabilizers of specific tensors (called structural tensors) under the action of O(3) on the tensor spaces in question. Here we strengthen the method by replacing “structural tensor” in the characterization of <span><math><mrow><mi>G</mi></mrow></math></span> with “set of structural tensors”, thereby broadening the range of subgroups of O(3) covered when the structural tensors are restricted to be of order not higher than two. Mathematical theorems are proved to support our strengthened method of isotropic extension via structural tensors, and a procedure is formalized for using the method to find a representation formula for the anisotropic constitutive function when the structural tensors involved are restricted to be of order not higher than two. As illustration, we consider the constitutive function in anisotropic nonlinear Cauchy elasticity and examine the cases where the anisotropic symmetry group does not satisfy the characterization required by the original method.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100295"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comprehensive investigation of squeeze film lubrication in porous elliptical plates: Analyzin the influences of magneto-hydrodynamics, couple stress and slip velocity 多孔椭圆板挤压膜润滑的综合研究：磁流体力学、耦合应力和滑移速度的影响分析

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.apples.2025.100291

Brinda Halambi , B.N. Hanumagowda , Ali B.M. Ali , C.P. Gowthami , T. Saikiran , D.V. Jayamadhavachari , Jagadish V. Tawade , Rakhmonjon Akhmadjonov , M. Ijaz Khan

{"title":"A comprehensive investigation of squeeze film lubrication in porous elliptical plates: Analyzin the influences of magneto-hydrodynamics, couple stress and slip velocity","authors":"Brinda Halambi , B.N. Hanumagowda , Ali B.M. Ali , C.P. Gowthami , T. Saikiran , D.V. Jayamadhavachari , Jagadish V. Tawade , Rakhmonjon Akhmadjonov , M. Ijaz Khan","doi":"10.1016/j.apples.2025.100291","DOIUrl":"10.1016/j.apples.2025.100291","url":null,"abstract":"<div><div>This comprehensive study investigates the combined effects of the interplay between an externally applied transverse magnetic field and the coupled flows in the squeeze film between porous elliptical plates, including the influence of slip velocity. The model employs the Stokes couple stress fluid theory to represent the effects of lubricant additives, and applies Cowling's theory to the electrically conductive fluid in the presence of a transverse magnetic field. Darcy's law is employed to model the flow through the porous media. The modified Reynolds equations incorporate these key effects, and detailed expressions for various squeeze film characteristics are derived. The novelty of the present work lies in the simultaneous inclusion of magneto-hydrodynamic, couple stress, and slip velocity effects in a porous elliptical geometry, an integration rarely addressed in previous studies. The results indicate that non-porous plates exhibit higher pressure generation compared to porous ones, and the squeeze film performance declines with increasing porosity. The results indicate that non-porous plates exhibit higher pressure generation compared to porous ones, and the squeeze film performance declines with increasing porosity. Conversely, the Lorentz force and couple stress, are found to enhance the lubrication performance compared to classical cases without these factors. These effects are more marked for smaller values of permeability <span><math><mi>ψ</mi></math></span> and slip velocity <span><math><mi>s</mi></math></span>. These valuable insights offer important guidance for the design of squeeze film lubrication systems utilizing porous elliptical plates subjected to transverse magnetic fields.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100291"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting creep failure time of thick-walled spherical vessels considering large strains 考虑大应变的厚壁球形容器蠕变破坏时间预测

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-10-09 DOI: 10.1016/j.apples.2025.100267

Vinod K. Arya

{"title":"Predicting creep failure time of thick-walled spherical vessels considering large strains","authors":"Vinod K. Arya","doi":"10.1016/j.apples.2025.100267","DOIUrl":"10.1016/j.apples.2025.100267","url":null,"abstract":"<div><div>In this paper, the problem of predicting creep-failure time of thick-walled spherical vessels is investigated. Thick-walled spherical vessels are important structural components that are used in many industries such as oil, chemical, nuclear, and others. These industries are required to operate under complex thermal and mechanical loadings where creep deformation is prevalent. The fact that continuing deformation under creep may reach a value where the assumption of small strains becomes increasingly invalid has been incorporated by using a finite-strain formulation in the mathematical framework developed to perform the creep-failure prediction times of the vessels. The mathematical analysis is conducted by employing the equilibrium, compatibility, and constitutive equations for the finite (logarithmic) strain theory together with suitable boundary conditions. The creep-failure time prediction relation is developed and solved using analytical and/or numerical methods. Parametric studies for various wall thickness ratios, creep-law exponents and pressure magnitudes are performed and presented in the form of graphs. It is expected that this investigation, employing a combination of mathematics and nonlinear mechanics, will provide useful guidelines for predicting more accurate creep-failure time and may thus lead to a safer design of thick-walled spherical vessels.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100267"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid piezoelectric–electromagnetic flow energy harvester for self-powered IoT-based pipeline monitoring systems 用于自供电物联网管道监测系统的压电-电磁混合流能量采集器

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2025-12-15 DOI: 10.1016/j.apples.2025.100284

Wahad Ur Rahman , Farid Ullah Khan

{"title":"Hybrid piezoelectric–electromagnetic flow energy harvester for self-powered IoT-based pipeline monitoring systems","authors":"Wahad Ur Rahman , Farid Ullah Khan","doi":"10.1016/j.apples.2025.100284","DOIUrl":"10.1016/j.apples.2025.100284","url":null,"abstract":"<div><div>This study discusses a hybrid flow energy harvester that integrates electromagnetic (EM) and piezoelectric (PE) effects to convert fluid flow into electricity, thereby powering an Internet of Things (IoT) system for pipeline monitoring. The prototype featured an unimorph circular piezoelectric plate attached to an adjustable housing, with three cylindrical magnets fixed at the center of the brass side, and a wound coil positioned in an adjustable coil holder above the magnets. Laboratory tests showed that the harvester achieved a maximum RMS load voltage of 2.33 V at an optimal load of 27 kΩ from the PE component and 169 mV at an optimal load of 200 Ω from the EM component. The PE part generated 201 µW of peak load power, whereas the EM part produced 144 µW at a flow pressure of 2.9 kPa and a flow rate of 11.08 l/s. When combined with a rectifier circuit, it produced up to 7.68 V DC from the PE section and 3.15 V DC from the EM section under the same conditions. Additionally, at these flow rates, the maximum DC power output was 169 µW from the piezoelectric element at a 90 kΩ load resistance and 125 µW from the EM element at 9.5 kΩ, respectively. Over 336 min, this device effectively charged the power backup from 1.11 to 4.31 V, demonstrating its practical applicability. A comparative analysis shows that this innovative hybrid harvester outperforms existing flow energy harvesters in both output power and energy efficiency.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100284"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transitional behaviour prediction in iron tailings via artificial intelligence 基于人工智能的铁尾矿过渡行为预测

IF 2.1

Applications in engineering science Pub Date : 2026-03-01 Epub Date: 2026-01-27 DOI: 10.1016/j.apples.2026.100302

Ismail Adeniyi OKEWALE, Hendrik GROBLER

{"title":"Transitional behaviour prediction in iron tailings via artificial intelligence","authors":"Ismail Adeniyi OKEWALE, Hendrik GROBLER","doi":"10.1016/j.apples.2026.100302","DOIUrl":"10.1016/j.apples.2026.100302","url":null,"abstract":"<div><div>The significant contributions of mining of minerals to the development of any nation make the generation of tailings inevitable and therefore, understanding their characteristics is vital. The contribution of engineering granulometric signatures to the aspect of behaviour called transitional mode (non-convergent) is also crucial. This work presents the artificial intelligence based study for the prediction of transitional behaviour in iron tailings considering engineering granulometric indices. This was achieved by conducting laboratory tests on dry compacted DC, wet compacted WC and slurry SL iron tailings and re-analysis of data from previous studies to determine transitional behaviour as well as predicting their behaviour using artificial neural network and adaptive neuro-fuzzy inference system. The iron tailings are poorly graded with strong degree of transitional behaviour with m values ranging from 0.32 to 0.81. The ANN models for DC, WC, SL and combined samples CS have relative similar correlation values and ditto for the ANFIS models. This signifies that the influence of sample preparations is not significant. The ANN model is reliable and could be used to predict the transitional mode of behaviour in iron tailings. However, the ANFIS model is less suitable for the prediction of transitional behaviour in iron tailings. The ANN model has the best performance based on low model errors and highest accuracy in prediction.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"25 ","pages":"Article 100302"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0