Frontiers of Mechanical Engineering最新文献_第10页

Editorial: Structural integrity and durability of engineering materials and components 社论：工程材料和部件的结构完整性和耐久性

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-04 DOI: 10.3389/fmech.2022.1124104

D. Benasciutti, J. Correia, S. Abdullah, J. Papuga

{"title":"Editorial: Structural integrity and durability of engineering materials and components","authors":"D. Benasciutti, J. Correia, S. Abdullah, J. Papuga","doi":"10.3389/fmech.2022.1124104","DOIUrl":"https://doi.org/10.3389/fmech.2022.1124104","url":null,"abstract":"Engineering components and structural details may be subjected in service to quite different loading conditions: high-cycle or low-cycle fatigue (with constant or variable amplitudes), static loadings and/or overloads, vibrations, creep, stress corrosion–just to cite a few examples. Whatever the loading condition, an assessment of the structural integrity for a structural detail must ensure an adequate safety margin against unexpected failures with potential catastrophic consequences. This goal is pursued by the use of theoretical, numerical and experimental approaches, often combined. For example, laboratory tests to estimate fundamental material properties, or full-scale tests to validate a finite element analysis implementing suitable strength models. Most often, scientific research deals with each of these areas separately, by proposing unconventional strength criteria, developing numerical techniques, or testing the durability of specific categories of traditional and advanced materials. The four papers of this Research Topic address some of the above-mentioned Research Topic by means of theoretical and/or experimental studies that cover application areas from mechanical to civil engineering. The paper by Gaidai et al. presents an approach to predict the extreme response in the mooring system of a floating wind turbine (FWT) based on extreme value statistics and a bivariate correction approach. As a case study, the approach is applied to a 10 MW large three-bladed FWT. The fully coupled aero-hydro-elastic-servo dynamic analysis of the FWT is performed by the open source simulation tool FAST (Fatigue, Aerodynamics, Structures and Turbulence). The FAST tool computed the aerodynamic loads on the blades and hydrodynamic loads on semi-submersible floater, other than the structural dynamic response, and eventually returned the time series of anchor tension force and surge motion of the wind turbine under different operation conditions, to be processed in the OPEN ACCESS","PeriodicalId":48635,"journal":{"name":"Frontiers of Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43141580","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

Advances in polishing of internal structures on parts made by laser-based powder bed fusion 激光粉末床熔合加工零件内部结构抛光的研究进展

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-01 DOI: 10.1007/s11465-022-0724-0

M. Shen, F. Fang

引用次数: 1

Lightweight design of an electric bus body structure with analytical target cascading 基于分析目标级联的电动客车车身结构轻量化设计

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-01 DOI: 10.1007/s11465-022-0718-y

Puyi Wang, Y. Bai, Chuanliang Fu, Cheng Lin

引用次数: 1

New nonlinear stiffness actuator with predefined torque—deflection profile 具有预定义力矩-挠度轮廓的新型非线性刚度致动器

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-01 DOI: 10.1007/s11465-022-0721-3

Wenjie Ju, Hexi Gong, Keke Qi, Rongjie Kang, J. Dai, Zhibin Song

引用次数: 1

Vibration characteristics and machining performance of a novel perforated ultrasonic vibration platform in the grinding of particulate-reinforced titanium matrix composites 新型穿孔超声振动平台在颗粒增强钛基复合材料磨削中的振动特性和加工性能

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-01 DOI: 10.1007/s11465-022-0730-2

Yang Cao, B. Zhao, W. Ding, Qiang Huang

引用次数: 0

Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant 纳米润滑剂用于生物骨超声振动辅助微研磨的可加工性

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2023-01-01 DOI: 10.1007/s11465-022-0717-z

Yuying Yang, Min Yang, Changhe Li, Runze Li, Z. Said, H. M. Ali, Shubham Sharma

引用次数: 56

Numerical and experimental research of helical gear contact stress considering the influence of friction 考虑摩擦影响的斜齿轮接触应力的数值与实验研究

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2022-12-20 DOI: 10.3389/fmech.2022.1078134

Xiaopeng Yang, Shunliang Yin, Yong-Yan Chen, Y. Zhang, Shuang Zhang, Yimin Wu

引用次数: 1

A two-scale FEM-BAM approach for fingerpad friction under electroadhesion 电粘附下指垫摩擦的双尺度FEM-BAM方法

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2022-12-16 DOI: 10.3389/fmech.2022.1074393

Fabian Forsbach, M. Hess, A. Papangelo

引用次数: 1

The integration of morphological design and topology optimization to enhance the visual quality of electricity pylons 将形态设计与拓扑优化相结合，提高电塔视觉质量

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2022-12-16 DOI: 10.3389/fmech.2022.1061905

L. Di Angelo, R. Furferi, F. Gherardini, E. Guardiani

{"title":"The integration of morphological design and topology optimization to enhance the visual quality of electricity pylons","authors":"L. Di Angelo, R. Furferi, F. Gherardini, E. Guardiani","doi":"10.3389/fmech.2022.1061905","DOIUrl":"https://doi.org/10.3389/fmech.2022.1061905","url":null,"abstract":"Purpose: This paper aims to enhance the visual quality of artificial above-ground structures, like pylons, masts, and towers of infrastructures and facilities, through a systematic design method for their morphological and structural optimization. Design/methodology/approach: The method achieves the functional and aesthetic goals based on the application of computer-aided tools. In particular, this is achieved according to three key steps: • Morphological development of landscape-related symbolism, environment, or culture and social needs. • Topology optimization of the design concept to reduce the structural weight and its visual impact. • Engineering of the resulting optimized structure. Practical implications: As a case study, the method is used for designing electricity pylons for the coastal territory of a Mediterranean European country, such as Italy. Citizens were involved during the identification phase of a symbolic shape for the concept development and during the final assessment phase. Research limitations/implications: The engineering phase has been performed by assembling standard lattice components with welded connections. Even if the use of this truss-like structure should lead to a minimum cost, the developed structure employs an additional 15%–20% of trusses and sheet metal covers the final cost is higher than a standard lattice pylon. Findings: The result is a structure with enhanced visual quality according to the international guidelines and fully complying with mandatory and functional requirements, such as regulatory and industrial feasibility, as well as those arising from social components. Originality/value: The method shows its potential in defining a custom design for lightweight structures with enhanced visual quality regarding the critical situation discussed here. The method considers both the subjective perception of citizens and their priorities and the landscape where the structures will be installed.","PeriodicalId":48635,"journal":{"name":"Frontiers of Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49268767","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: 1

A numerical investigation exploring the potential role of porous fencing in reducing firebrand impingement on homes 一项数值调查探讨了多孔围栏在减少火焰对房屋的冲击方面的潜在作用

IF 4.5 2区工程技术

Frontiers of Mechanical Engineering Pub Date : 2022-12-15 DOI: 10.3389/fmech.2022.1059018

L. Atwood, N. Wagenbrenner

{"title":"A numerical investigation exploring the potential role of porous fencing in reducing firebrand impingement on homes","authors":"L. Atwood, N. Wagenbrenner","doi":"10.3389/fmech.2022.1059018","DOIUrl":"https://doi.org/10.3389/fmech.2022.1059018","url":null,"abstract":"Firebrand impingement is a leading cause of home ignitions from wildland fire. The use of porous fencing has recently been proposed as a potential method for mitigating firebrand impingement on homes. A porous fence can act as a windbreak to alter the near-surface flow and induce particle deposition, as demonstrated in other applications, such as the use of snow fences to protect roadways from drifting snow. Conservation advocates have proposed the use of fire-resistant vegetation to act as a fence upwind of homes or subdivisions. Porous fences could also be constructed from fire-resistant materials such as metal, rock, or composites. This numerical investigation of the effectiveness of porous fencing to reduce firebrand impingement on homes conducted a series of experiments to explore the effect of porous fencing on the near-surface flow field and firebrand transport downwind of the fence. We also evaluated the sensitivity of the results to various fence, flow, and firebrand properties, including fence height, fence porosity, wind speed, firebrand source location, and firebrand size. To our knowledge, this is the first study to investigate the concept of using a fence to induce firebrand deposition upwind of homes. Our results showed that porous fencing can reduce firebrand impingement on homes by up to 35% under certain conditions; however, fencing can also increase impingement on homes. The mitigation effectiveness depended on the proximity of the firebrand source, distance between the fence and home as a function of fence height, wind speed, and firebrand size. A series of key findings and recommendations are provided.","PeriodicalId":48635,"journal":{"name":"Frontiers of Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44755426","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