Vibroengineering PROCEDIA最新文献_第7页

Study on vibration characteristics of structural components based on virtual reality technology 基于虚拟现实技术的结构构件振动特性研究

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23625

Wei Wang

引用次数: 0

A scientometric research and critical analysis of road-rail bridge 公路桥科学计量学研究与关键分析

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23552

Gang Yao, Linjun Wu, Yang Yang, Yuanlin Zheng, Bin Qin, Yuxiao Chen

引用次数: 0

Analysis of fatigue fracture incident of centrifugal compressor blades in a small turbojet engine 小型涡喷发动机离心压气机叶片疲劳断裂事件分析

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23607

Songlin Qian, Wei Guo, Min Chen, Kunlin Lu, Lei Zhang, Yongxin Wu, Fei Wang

引用次数: 0

Assessment of cracks in beams using changes in the measured frequencies and Particle Swarm Optimization 利用测量频率的变化和粒子群优化来评估梁中的裂纹

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23684

Horea-Adrian Grebla, Vasile Catalin Rusu, Gilbert-Rainer Gillich, Thu Hang Bui

{"title":"Assessment of cracks in beams using changes in the measured frequencies and Particle Swarm Optimization","authors":"Horea-Adrian Grebla, Vasile Catalin Rusu, Gilbert-Rainer Gillich, Thu Hang Bui","doi":"10.21595/vp.2023.23684","DOIUrl":"https://doi.org/10.21595/vp.2023.23684","url":null,"abstract":"This paper presents a method for detecting a crack in simply supported beams by identifying its location and severity (depth). The method is based on the measured natural frequencies for several bending vibration modes of an intact and cracked beam and the Particle Swarm Optimization (PSO). To explain the approach, we calculate the relative frequency shifts (RFS) for eight vibration modes for all possible damage cases. To this aim, we use a mathematical relation deduced in previous research. Next, we monitor the natural frequencies, and in case of arising changes, we calculate the RFSs. We subtract, separately for all modes, the measured RFSs from all calculated RFSs. Considering the absolute values the subtractions achieve, we obtain eight surfaces that achieve elevation zero if the calculated and measured RFSs coincide. The zero-elevation points form curves with different shapes for the different vibration modes. The intersection of these curves, thus the location where all surfaces have zero elevation, indicates the damage location and severity. Adding the elevation values of the eight surfaces point by point, we obtain a new surface that has two points (due to symmetry) with zero elevation. The coordinates of these points indicate the damage parameters. We use the generated surface as an objective function and find the coordinates of the minima involving PSO. Using this method, we accurately identified the damage location and severity.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"13 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":"135618706","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

Analysis of sealing performance of combined seal structure with metal C-ring with built-in spring 金属c形环内置弹簧组合密封结构密封性能分析

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23494

Qi Huang, Xuan Li, Jin Zhu, Xiaojun Zhou

引用次数: 0

Single event transient of SOI FinFET with total ionizing dose irradiation 总电离剂量辐照下SOI FinFET的单事件瞬态

Vibroengineering PROCEDIA Pub Date : 2023-10-20 DOI: 10.21595/vp.2023.23602

Baojun Liu, Ping Zhou, Liang Qian

引用次数: 0

Practical implementation and experimental testing of control system for vibratory lapping-polishing machine 振动研磨抛光机控制系统的实际实现及实验测试

Vibroengineering PROCEDIA Pub Date : 2023-09-21 DOI: 10.21595/vp.2023.23567

Oleksandr Kachur, Vitaliy Korendiy, Viktor Zakharov, Volodymyr Borovets, Oleksandr Havrylchenko, Roman Palash

{"title":"Practical implementation and experimental testing of control system for vibratory lapping-polishing machine","authors":"Oleksandr Kachur, Vitaliy Korendiy, Viktor Zakharov, Volodymyr Borovets, Oleksandr Havrylchenko, Roman Palash","doi":"10.21595/vp.2023.23567","DOIUrl":"https://doi.org/10.21595/vp.2023.23567","url":null,"abstract":"Vibratory technological machines are widely implemented in various branches of industrial, manufacturing, and mechanical engineering. Particularly, such equipment can be effectively used while conducting finishing technological operations, e.g., lapping and polishing of different machine parts. The present paper is focused on developing the control system for the novel design of a vibratory lapping-polishing machine driven by six solenoids. The main purpose consists in providing the circular trajectory of the working member and ensuring the machining uniformity at each point of the surface being treated. In such a case, it is proposed to actuate the solenoids with the specified time shift depending on the forced frequency needed to be provided. The duration of the signal actuating the solenoid is equal to one-sixth of the total duration of a cycle (period) of the working body oscillation. The corresponding control approach is developed and simulated in the Tinkercad application, while the control system is designed based on the Arduino software and hardware. In addition, the laboratory prototype of the vibratory lapping-polishing machine and the corresponding control system are implemented in practice. The performed experimental investigations substantiate the possibilities of generating the circular oscillations of the working member of the vibratory lapping-polishing machine. The obtained results may be useful for engineers and technologists dealing with control systems of various vibratory technological equipment based on electromagnetic and solenoid-type drives.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136128717","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

Experimental study on rolling segregation of cement stabilized macadam 水泥稳定碎石的滚动偏析试验研究

Vibroengineering PROCEDIA Pub Date : 2023-09-21 DOI: 10.21595/vp.2023.23323

Zhibin Wang, Xiaosen Wang, Wenli Qiu, Huilin Meng, Haidong Li

{"title":"Experimental study on rolling segregation of cement stabilized macadam","authors":"Zhibin Wang, Xiaosen Wang, Wenli Qiu, Huilin Meng, Haidong Li","doi":"10.21595/vp.2023.23323","DOIUrl":"https://doi.org/10.21595/vp.2023.23323","url":null,"abstract":"Indoor simulated mixing building storage bin unloading, forming conical piles. The effects of falling distance, mixing time and water content on rolling segregation of cement-stabilized macadam were analyzed by three indexes, including repose Angle of pile, key sieve passing rate and cement dosage. The results show that the segregation of mixture can be increased significantly with the increase of drop distance. The separation degree of the mixture can be effectively controlled by controlling the unloading distance within 70 cm. Mixing time has little effect on the Angle of rest and gradation segregation of the mixture, but has significant effect on the distribution uniformity of cement. Indoor mixing time should reach more than 45 s. When the mixing water content is less than the optimal water content, the segregation of the mixture is serious. When the moisture content increased to 1.5 %, the mixture showed obvious bleeding phenomenon. The mixture shall not be lower than the optimal moisture content before the crushing is completed, and the moisture content increase shall not exceed 1.5 % of the optimal moisture content as far as possible.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136128736","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 influence of vehicle rolling on the retroreflective coefficient of hot melt markings 车辆滚动对热熔标志反反射系数的影响

Vibroengineering PROCEDIA Pub Date : 2023-09-21 DOI: 10.21595/vp.2023.23437

Tao Liu, Wenhao Yao, Rui He, Xiamang Wang

{"title":"The influence of vehicle rolling on the retroreflective coefficient of hot melt markings","authors":"Tao Liu, Wenhao Yao, Rui He, Xiamang Wang","doi":"10.21595/vp.2023.23437","DOIUrl":"https://doi.org/10.21595/vp.2023.23437","url":null,"abstract":"In the service life of traffic markings, the visibility of the markings can be significantly impacted due to continuous rolling by vehicles. This study aims to investigate the change of retroreflective coefficient of traffic markings at different positions on the road after being rolled by vehicles. A two-month follow-up study was conducted on a specific section of the road, focusing on the sideline and middle line of the lane. The retroreflective coefficient instrument was utilized to collect data on the retroreflective coefficient of the markings. Results revealed that the middle line, due to more frequent vehicle rolling, exhibited a larger range in its retroreflective coefficient as compared to the sideline of the lane. The change in reflection ability of hot melt markings, when rolled by the vehicle, depends on the mosaic condition of the glass beads within the coating. It was observed that the rolling of the vehicle had a direct impact on the retroreflective coefficient of the hot melt marking line. Furthermore, it was found that with increased rolling of the marking line, the greater the impact on its reflection capacity and the thickness also demonstrated a significant decrease.","PeriodicalId":262664,"journal":{"name":"Vibroengineering PROCEDIA","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136128998","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

Mechanical performance of heterogeneous lattice structure 非均相晶格结构的力学性能

Vibroengineering PROCEDIA Pub Date : 2023-09-21 DOI: 10.21595/vp.2023.23454

Guoji Yu, Cheng Miao, Hailing Wu, Jiayi Liang

引用次数: 0