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
The effect of ambient temperature on the internal ballistic overload of a large-caliber artillery projectile fuze system 环境温度对大口径火炮引信系统内部弹道过载的影响
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23622
Zilong Yang, Deren Kong, Chunyan Zhang
{"title":"The effect of ambient temperature on the internal ballistic overload of a large-caliber artillery projectile fuze system","authors":"Zilong Yang, Deren Kong, Chunyan Zhang","doi":"10.21595/vp.2023.23622","DOIUrl":"https://doi.org/10.21595/vp.2023.23622","url":null,"abstract":"The change of ambient temperature will cause the change of gunpowder burning rate, which will directly affect the ballistic performance of the projectile and cause the change of the overload of the projectile fuze system. In this study, the numerical simulation program of the interior trajectory of a large-caliber gun was established by MATLAB, and the variation rules of the corresponding trajectory parameters at different temperatures were obtained. ANSYS finite element software is used to analyze the force of the projectile fuze system under different ambient temperatures. The results show that under the same loading conditions, with the increase of ambient temperature, the maximum pressure in the gun bore and the muzzle velocity of the projectile increase significantly, and the stress and strain of the projectile fuze system in the bore increase gradually. The numerical simulation results are in good agreement with the theory, which reveals the influence of ambient temperature on the overload in the bore of the projectile fuze system to a certain extent, and provides theoretical support for the study of internal ballistics, charge design and gun use.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"139 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139237804","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 frequency of triangular plate having circular thickness 厚度为圆形的三角形板的振动频率
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23370
Neeraj Lather, Ankit Kumar, Parvesh Yadav, Reeta Bhardwaj, Amit Sharma
{"title":"Vibrational frequency of triangular plate having circular thickness","authors":"Neeraj Lather, Ankit Kumar, Parvesh Yadav, Reeta Bhardwaj, Amit Sharma","doi":"10.21595/vp.2023.23370","DOIUrl":"https://doi.org/10.21595/vp.2023.23370","url":null,"abstract":"In the current research, modes of frequency of isotropic tapered triangular plate having 1-D (one dimensional) circular thickness and 1-D (one dimensional) linear temperature profile for clamped boundary conditions are discussed. Authors implemented Rayleigh Ritz technique to solve the frequency equation of isotropic triangular plate and computed the first four modes with a distinct combination of plate parameters. Authors have performed the convergence study of modes of frequency of the isotropic triangular plate. Also, conducted comparative analysis of modes of frequency of the current study with available published papers and the results presented in tabular form. The aim of the present study is to show the impact of a one dimensional circular thickness and one dimensional linear temperature on modes of frequency of vibration of an isotropic tapered triangular plate.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"6 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238076","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
The threshold value of ground motion acceleration characterizing the nonlinear response of sites 表征场地非线性响应的地震动加速度临界值
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23686
Xingyu Zhang, Yinfeng Dong, Lejun Wei, Feiyu Guo, Qingshuang Su
{"title":"The threshold value of ground motion acceleration characterizing the nonlinear response of sites","authors":"Xingyu Zhang, Yinfeng Dong, Lejun Wei, Feiyu Guo, Qingshuang Su","doi":"10.21595/vp.2023.23686","DOIUrl":"https://doi.org/10.21595/vp.2023.23686","url":null,"abstract":"Assessing the nonlinearity of a site plays a crucial role in earthquake engineering. For some building structures and lifeline projects that need safety assessment after earthquakes, the analysis of nonlinear degree of sites can help accurately revealing the amplification effect of sites and evaluating the damage degree of buildings which is convenient for subsequent reinforcement and demolition work. The quantitation of nonlinear threshold of sites is an important method to evaluate the degree of site nonlinearity. In this paper, a nonlinear characteristic index reflecting the degradation of shear modulus is proposed based on the instantaneous frequency of the site calculated by using the vector auto-regression moving average (VARMA) model. Then, seismic records of class Ⅰ, Ⅱ, Ⅲ and Ⅳ sites specified as per code for seismic design of buildings in China are selected from the KiK-net network in Japan, and the threshold value of ground motion acceleration characterizing the nonlinear response of sites are provided. Finally, the variation of the nonlinear characteristic index (shear modulus degradation) vs. different (peak ground acceleration) PGA for four types of sites are presented.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"18 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238113","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
The determination method of spacecraft sine control envelope based on the force of shaker 基于振动器力的航天器正弦控制包络线确定方法
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23509
Hanping Qiu, Chuang Liu, Yaoqi Feng, Xiaohua Liang, Lixia Feng, Yan Chen, Yongqiang Hu, Yujia Ma
{"title":"The determination method of spacecraft sine control envelope based on the force of shaker","authors":"Hanping Qiu, Chuang Liu, Yaoqi Feng, Xiaohua Liang, Lixia Feng, Yan Chen, Yongqiang Hu, Yujia Ma","doi":"10.21595/vp.2023.23509","DOIUrl":"https://doi.org/10.21595/vp.2023.23509","url":null,"abstract":"This paper describes the method of determining reasonable test levels for product of spacecraft with big size, low mass and high test levels when the force of the shaker facilities is limited. The major step is to compute the test envelope from both Newton’s law and Ampere’s force aspects, the minimum of which is defined as the final safety control envelope for flight spacecraft hardware. By using this method, the shaker facilities can provide maximum force for spacecraft experiencing effective assessment and the interruptions can be avoid during the process of test operation.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139236826","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
Acceleration spikes in strong earthquake ground motion induced by dilatancy cyclic mobility mechanism 扩张循环流动机制诱发的强震地面运动加速度峰值
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23715
Qingshuang Su, Yinfeng Dong, Feiyu Guo, Xingyu Zhang
{"title":"Acceleration spikes in strong earthquake ground motion induced by dilatancy cyclic mobility mechanism","authors":"Qingshuang Su, Yinfeng Dong, Feiyu Guo, Xingyu Zhang","doi":"10.21595/vp.2023.23715","DOIUrl":"https://doi.org/10.21595/vp.2023.23715","url":null,"abstract":"Strong motion records with acceleration spikes have occurred frequently in recent major earthquakes, acceleration spikes contribute to the peak ground accelerations (PGAs) and the amplitudes are significantly higher than the predicted values based on present attenuation relation. The generation mechanism of acceleration spikes is revealed based on long-term monitoring after the 2008 Mw 8.0 Wenchuan earthquake. The horizontal accelerogram with obvious spikes from the Mw 9.0 Tohoku-Oki earthquake is reproduced by using numerical simulation, and it’s found that the dilatancy cyclic mobility (DCM) mechanism can explain the generation of acceleration spikes. The support vector machine (SVM) is used to efficiently identify DCM sites. We found that the spatial distribution of DCM sites is parallel to the earthquake source fault and the corresponding PGAs of ground motions recorded in DCM sites differ significantly from those recorded in non-dilatancy cyclic mobility (NDCM) sites.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238177","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 chip shape and cutting force model of milling process in any direction of space 空间任意方向铣削过程中的切屑形状和切削力模型研究
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23296
Shuiyuan Wu, Dongju Chen, Zhiwen Jiang
{"title":"Study on chip shape and cutting force model of milling process in any direction of space","authors":"Shuiyuan Wu, Dongju Chen, Zhiwen Jiang","doi":"10.21595/vp.2023.23296","DOIUrl":"https://doi.org/10.21595/vp.2023.23296","url":null,"abstract":"This paper considers the calculation process for chip shape and cutting force of milling process in any direction of space.In the milling process with the existence of lead and tilt angle, the edges and boundary curves go through the process of one intersection, two intersections, tangency and non intersection in a milling cycle, thus the chip thickness needs to be calculated in various regions. The milling force is calculated by using the differential method. Then by comparing the milling forces when the lead angle is 5° and the tilt angle is 10° with when there is no inclination angle, the influence of inclination angle on machining process is studied. Meanwhile, by comparing the milling forces calculated by geometric analysis method with those calculated by classical Altintas model, the validity of the proposed method is verified. In addition, by comparing the milling forces obtained using the classical Altintas model with those obtained in published literature, the rationality of the method is further demonstrated.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"55 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139237338","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
An analytical method for evaluating the dynamic behavior of a soft clamped-type support 评估软夹持型支架动态行为的分析方法
Vibroengineering PROCEDIA Pub Date : 2023-11-25 DOI: 10.21595/vp.2023.23665
Z. Praisach, D. Pîrșan, Ionela Harea, Patric Timotei Stan
{"title":"An analytical method for evaluating the dynamic behavior of a soft clamped-type support","authors":"Z. Praisach, D. Pîrșan, Ionela Harea, Patric Timotei Stan","doi":"10.21595/vp.2023.23665","DOIUrl":"https://doi.org/10.21595/vp.2023.23665","url":null,"abstract":"Analytical equations that describe the dynamic behavior of beams with a soft clamped end are very little treated in the literature. The paper aims to solve this problem by introducing a stiffness in the hinged end of the beam, respectively by comparing the bending moment in the clamped end with the slope in the hinge of the same end of the beam. The other end of the beam is permanently hinged. The characteristic equation for determining the eigenvalues and the modal function is deduced. The results show the first four vibration modes for seven stiffness values and the eigenvalues for eleven cases of soft clamped end.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139236233","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
Structural seismic response prediction based on convolutional neural networks 基于卷积神经网络的结构地震反应预测
Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23670
Feiyu Guo, Yinfeng Dong, Hui Tian, Xingyu Zhang, Qingshuang Su
{"title":"Structural seismic response prediction based on convolutional neural networks","authors":"Feiyu Guo, Yinfeng Dong, Hui Tian, Xingyu Zhang, Qingshuang Su","doi":"10.21595/vp.2023.23670","DOIUrl":"https://doi.org/10.21595/vp.2023.23670","url":null,"abstract":"The seismic response of buildings is crucial for structural performance analysis. For structures with complete design data, the seismic response can be predicted using finite element analysis. However, for structures lacking necessary information, building finite element models and predicting their seismic response can be challenging. Compared to finite element analysis, convolutional neural networks (CNNs) can establish a neural network mapping relationship between the structure and the seismic response to predict the structural response without design data. In this paper, a structural response prediction model based on CNNs is established, aiming to analyze the effect of natural frequency reduction on the structural response after the Tohoku earthquake. The successful prediction of the structural acceleration and displacement response provides a new analytical method for predicting the seismic response of buildings lacking design data.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618559","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 the change rule of thermal damage on the properties of D-RDX energetic materials 热损伤对D-RDX含能材料性能变化规律的研究
Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23487
Hongbin Li, Jiyang Diao, Penggang Jin
{"title":"Study on the change rule of thermal damage on the properties of D-RDX energetic materials","authors":"Hongbin Li, Jiyang Diao, Penggang Jin","doi":"10.21595/vp.2023.23487","DOIUrl":"https://doi.org/10.21595/vp.2023.23487","url":null,"abstract":"The thermal damage process of the energetic material sample D-RDX was simulated by the thermal accelerated aging test, and the physical and explosive properties of the thermally damaged D-RDX energetic material were measured. The results showed that the physical properties of D-RDX did not change significantly under the test conditions, but the impact safety was significantly different, and the safety of the thermally damaged D-RDX sample showed greater dispersion.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618562","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
An analysis for support loss of micro-cantilever beam based on PML method 基于PML方法的微悬臂梁支撑损失分析
Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23676
Guolin Liu, Yu Zeng, Jinhao Liu, Zheng Wei
{"title":"An analysis for support loss of micro-cantilever beam based on PML method","authors":"Guolin Liu, Yu Zeng, Jinhao Liu, Zheng Wei","doi":"10.21595/vp.2023.23676","DOIUrl":"https://doi.org/10.21595/vp.2023.23676","url":null,"abstract":"Support loss is the phenomenon where part of the vibration energy of a micro-cantilever is transferred to the support structure in the form of elastic waves and dissipated. Since the support loss is coupled with other dissipations, it is difficult for the experimental operator to analyze it experimentally. In this paper, the support loss of micro-cantilever beam is investigated using the perfectly matched layer method, and the support loss is calculated by using the two-dimensional and three-dimensional models, separately. Then we find that both models are consistent with the corresponding theoretical analysis, and the three-dimensional model is closer to the actual situation. In addition, we investigate the contribution of the thickness of the support substrate and the size of the micro-cantilever beam to the support loss. The result shows that the thicker the support substrate and the slimmer the micro-cantilever beam, the smaller the support loss.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618582","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
首页 上一页 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