发布求助
文献互助 智能选刊 最新文献

Vibroengineering PROCEDIA最新文献

筛选
英文 中文
Analysis of preload modal characteristics of hydraulic cylinders based on finite element method 基于有限元法的液压缸预紧模态特性分析
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23718
Zhigang Wang
{"title":"Analysis of preload modal characteristics of hydraulic cylinders based on finite element method","authors":"Zhigang Wang","doi":"10.21595/vp.2023.23718","DOIUrl":"https://doi.org/10.21595/vp.2023.23718","url":null,"abstract":"In order to study the dynamic response of hydraulic cylinders under complex load conditions, the modal characteristics of hydraulic cylinders were simulated and calculated by comprehensively considering the combined effects of preload and oil fluid dynamics. The contact in the finite element model was specially processed to ensure that the local degrees of freedom of the piston in the structure were maintained during the modal simulation calculation process. After the static characteristics were calculated, the relevant data was imported into the modal simulation module to achieve coupling analysis under preload. By verifying the contact stiffness factor, the boundary conditions of the model were effectively optimized. The natural frequencies of the model were compared and analyzed under different piston strokes, and the mechanism of dynamic response was obtained. Through modal testing, the results indicated that the simulation results had high accuracy and reliability.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"253 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139228459","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
Influence of asphalt mixture nonlinearity on pavement mechanical response 沥青混合料非线性对路面机械响应的影响
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23751
Guobao Yang, Yuzhen Wu
{"title":"Influence of asphalt mixture nonlinearity on pavement mechanical response","authors":"Guobao Yang, Yuzhen Wu","doi":"10.21595/vp.2023.23751","DOIUrl":"https://doi.org/10.21595/vp.2023.23751","url":null,"abstract":"In view of the influence of asphalt mixture nonlinearity on the mechanical response of pavement structure, the creep compliance of AC-16 under 0.1, 0.3, 0.5, 0.7 and 0.9 MPa is studied first. The results show that the asphalt mixture is in the linear viscoelastic region, when the load is in the 0.1-0.5 MPa interval. When the load is greater than 0.5 MPa, the creep compliance increases significantly, and asphalt mixture presents a nonlinear property. The Prony series is used to fit the creep compliance data, and the relaxation modulus is calculated based on the convolution relationship between creep compliance and relaxation modulus in viscoelastic mechanics. The relaxation modulus under different loads is introduced into the mechanical calculation of layered viscoelastic system. The calculation results show that the nonlinearity of asphalt mixture significantly affects the permanent deformation of asphalt layer, but has little effect on the fatigue problem of the asphalt base. In the design of pavement structure, attention should be paid to the nonlinearity of asphalt mixture.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139228836","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
Investigation of the aerodynamic characteristics of single-box girders with different aspect ratios 不同长宽比单箱梁的空气动力特性研究
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23703
Zhisheng Xue, Xiaowei Wang, Juncheng Zhou, Zhao Xiao, Xin Deng
{"title":"Investigation of the aerodynamic characteristics of single-box girders with different aspect ratios","authors":"Zhisheng Xue, Xiaowei Wang, Juncheng Zhou, Zhao Xiao, Xin Deng","doi":"10.21595/vp.2023.23703","DOIUrl":"https://doi.org/10.21595/vp.2023.23703","url":null,"abstract":"In this paper, the three dimensional LES method was used to generate a typical turbulent wind field. Three streamlined box girders with three different aspect ratios were adopted to investigate the effects of aspect ratios on the force coefficients and flow separation characteristics with different angles of attack. The results show that the aspect ratio has significant effects on the force coefficients of the streamlined box girder, and the larger the aspect ratio is, the larger the lift coefficient is. For the flow separation characteristics, as the aspect ratio increases, the spacing of wake vortex is shortened and the wake vortex dissipation rate is accelerated.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"177 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233693","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
Analyzing vibration modes in non-homogeneous parallelogram plates 分析非均质平行四边形板的振动模式
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23758
Sapna, Amit Sharma
{"title":"Analyzing vibration modes in non-homogeneous parallelogram plates","authors":"Sapna, Amit Sharma","doi":"10.21595/vp.2023.23758","DOIUrl":"https://doi.org/10.21595/vp.2023.23758","url":null,"abstract":"This study analyzes vibration modes in non-homogeneous orthotropic parallelogram plate with a one-dimensional circular thickness, focusing on SCCC edge condition, where C and S represent the clamped and simply supported edges of the plate, respectively. Circular Poisson’s ratio variation is considered, along with linear temperature changes. The study demonstrates the advantages of variable Poisson’s ratio over density parameter variation in obtaining shorter vibration time periods. Orthotropic parallelogram plate, thermal gradient, circular tapering, nonhomogeneity.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139230940","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
Site effects based on time varying horizontal-to vertical spectral ratio 基于时间变化的水平-垂直光谱比的场地效应
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23760
Fuchao Cao, Yinfeng Dong, Yiming Xie, Yiping Wang
{"title":"Site effects based on time varying horizontal-to vertical spectral ratio","authors":"Fuchao Cao, Yinfeng Dong, Yiming Xie, Yiping Wang","doi":"10.21595/vp.2023.23760","DOIUrl":"https://doi.org/10.21595/vp.2023.23760","url":null,"abstract":"Horizontal to vertical spectral ratio (HVSR) based on seismic ground motion is an important index to study site conditions and dynamic characteristics (seismic effect). Due to the influence of the vertical dynamic amplification effect of the site, the Fourier spectral ratio calculated according to the surface motion and downhole motion is quite different from that of the horizontal and vertical ground motion in the case of strong vibration input. However, our recent research shows that when considering the time-varying characteristics of ground motion, the time-varying surface-downhole spectral ratio and time-varying HVSR are almost the same. Based on this discovery, the time-varying HVSR is used to study the dynamic characteristics of the site (site effect). First, a new method for calculating the natural period and damping ratio of the site is proposed. Secondly, based on tremendous strong motion records, the prediction formulas of natural period and damping ratio are studied. Finally, the effects of various influencing factors on the natural period and damping ratio are compared. The results of this paper can provide a basis for selecting and synthesizing appropriate ground motions in structural seismic design.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139229189","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
Characteristic period of response spectrum for surface and borehole ground motions 地表和钻孔地动响应谱的特征周期
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23734
Qingshuang Su, Yinfeng Dong, Feiyu Guo, Xingyu Zhang
{"title":"Characteristic period of response spectrum for surface and borehole ground motions","authors":"Qingshuang Su, Yinfeng Dong, Feiyu Guo, Xingyu Zhang","doi":"10.21595/vp.2023.23734","DOIUrl":"https://doi.org/10.21595/vp.2023.23734","url":null,"abstract":"Determining the characteristic period of ground motions (Tg) is an essential step in the seismic design of structures, but a critical problem that needs to be solved is figuring out how to do so when bedrock ground motion is utilized as an input. In this paper, the relationship between surface and borehole temperature data is investigated, and the main factors affecting the Tg are analyzed. Then, the algorithm for predicting Tg is presented. It is found that two factors, i.e., peak ground acceleration (PGA) and fault distance have significant effects on the value of Tg. By comparing the values of Tg for borehole and surface motions, we find that, contrary to expectation, Tg for borehole motions is usually larger than that for surface motions in most cases. Finally, the conversion equation between the Tg for borehole and surface motions is given using regression analysis.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232318","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
Study on critical dynamic stress of alluvial silty sand under different confining pressure, water content and dynamic load frequency 不同约束压力、含水量和动载频率下冲积淤泥砂临界动应力研究
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23750
Yukun Mao, Junsheng Yang, Yue Dai, Jiao Huang, Bingxu Chen
{"title":"Study on critical dynamic stress of alluvial silty sand under different confining pressure, water content and dynamic load frequency","authors":"Yukun Mao, Junsheng Yang, Yue Dai, Jiao Huang, Bingxu Chen","doi":"10.21595/vp.2023.23750","DOIUrl":"https://doi.org/10.21595/vp.2023.23750","url":null,"abstract":"With the development of engineering construction, alluvial silty sand is widely used in highway construction, and its mechanical properties are becoming more and more important. In this paper, the pluvial silty sand in practical engineering is taken as the research object, and its physical properties are obtained through basic test. The critical dynamic stress of pluvial silty sand under different confining pressure, water content and dynamic load frequency is studied by indoor dynamic triaxial test. The results show that the critical dynamic stress of alluvial silty sand is affected by confining pressure and water content, and the frequency of dynamic load has little effect on it. The critical dynamic stress of alluvial silty sand is proportional to the confining pressure. When the water content of the soil sample is the best water content, the critical dynamic stress of the alluvial silty sand is the largest; the dynamic load frequency has little effect on the critical dynamic stress. Through the study of the critical dynamic stress of alluvial silt, it provides some reference for its engineering application and theoretical research.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139231119","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
Vibrational analysis of orthotropic rectangular plate having combination of circular thickness and parabolic temperature 具有圆形厚度和抛物线温度组合的正交矩形板的振动分析
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23729
Neeraj Lather, Ankit Kumar, Madhu Gupta, Pawan Joshi, Amit Sharma
{"title":"Vibrational analysis of orthotropic rectangular plate having combination of circular thickness and parabolic temperature","authors":"Neeraj Lather, Ankit Kumar, Madhu Gupta, Pawan Joshi, Amit Sharma","doi":"10.21595/vp.2023.23729","DOIUrl":"https://doi.org/10.21595/vp.2023.23729","url":null,"abstract":"The objective of this study is to investigate the natural vibration of a rectangular plate made of orthotropic material with circular thickness (two dimensions) and temperature variation on the plate is parabolic (two dimensions) in nature. The solution to the problem is obtained by utilizing the Rayleigh-Ritz technique and the first four frequency modes are obtained under clamped edge conditions. The study aims to provide numerical data that demonstrate how circular variation in tapering parameters of plate can effectively control and optimized vibrational frequencies of the plate. Orthotropic rectangular plate, thermal gradient, circular tapering, aspect ratio.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"355 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233792","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
Timber-to-timber composite floors connection optimization for vibration and deflection reduction 优化木材与木材复合地板的连接，减少振动和挠度
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23618
Yuri De Santis, Francesca Pancella, D. Pasca, A. Aloisio, Massimo Fragiacomo
{"title":"Timber-to-timber composite floors connection optimization for vibration and deflection reduction","authors":"Yuri De Santis, Francesca Pancella, D. Pasca, A. Aloisio, Massimo Fragiacomo","doi":"10.21595/vp.2023.23618","DOIUrl":"https://doi.org/10.21595/vp.2023.23618","url":null,"abstract":"Timber floors are prone to vibration due to the reduced modulus of elasticity of the material. Composite floors represent the most convenient solution to achieve acceptable performances and at the same time to save material and cost. In determining the natural frequency of a composite floor, the stiffness of the connection between the joined structural member is crucial. Inclined screws connections are characterized by the highest slip modulus among the mechanical fastener connections. However, the determination of the optimal inclination angle of the screws for vibration and deflection reduction remains an unexplored issue. The optimization problem is faced by means of an analytical model of beam on foundation.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139234804","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
Preparation of ZIF-8 particles via solvent thermal synthesis and investigation of their photocatalytic hydrogen generation performance 通过溶剂热合成制备 ZIF-8 颗粒并研究其光催化制氢性能
Vibroengineering PROCEDIA Pub Date : 2023-11-27 DOI: 10.21595/vp.2023.23648
Chong Lin, Changhui Xiao, D. Zhang, H. Rao, Wei Cheng
{"title":"Preparation of ZIF-8 particles via solvent thermal synthesis and investigation of their photocatalytic hydrogen generation performance","authors":"Chong Lin, Changhui Xiao, D. Zhang, H. Rao, Wei Cheng","doi":"10.21595/vp.2023.23648","DOIUrl":"https://doi.org/10.21595/vp.2023.23648","url":null,"abstract":"In recent years, the preparation and application of ZIF-8 nanoparticles have garnered interest, yet systematic studies on the relationship between their size and photocatalytic hydrogen generation performance remain limited. Addressing this gap, the present study pioneers an in-depth exploration of the preparation of ZIF-8 nanoparticles, emphasizing their impact on photocatalytic hydrogen generation. A novel observation was made, where uniform ZIF-8 particles of approximately 1 micron were optimally synthesized at a molar ratio of zinc acetate to dimethylimidazole of 1:4. Interestingly, the study unveiled a unique trend of ZIF-8 particle size variation with changing reaction temperatures. Most notably, and for the first time, this research underscores the paramount role of particle size on ZIF-8’s hydrogen generation capability, connecting it intricately to the material’s pore characteristics. An unprecedented finding was the superior performance of the 500 nanometer-sized ZIF-8 in photocatalytic hydrogen generation, attributing its excellence to its pore size being finely attuned to the photocatalytic reaction requirements. Such groundbreaking insights not only deepen our comprehension of ZIF-8 materials but also hold transformative potential for the international engineering community, particularly in tailoring applications for enhanced photocatalytic hydrogen generation.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"276 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139231255","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信