2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)最新文献_第6页

Improved Kernel Fuzzy C-Means Clustering Method Based on Smart Grid 基于智能电网的改进核模糊c均值聚类方法

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021356

Shuqi Niu, Zhao Zhang, Xintong Tian, Xueyan Zhao

引用次数: 0

Dynamic Modelling and Analysis of a Novel Redundantly Actuated Parallel Spindle Head 一种新型冗余驱动并联主轴头的动力学建模与分析

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021492

K. Wang, Zhen He, Chengyang Wu, Fufu Yang, Jun Zhang

引用次数: 0

Design and Analysis of a Novel Soft Actuator with High Contraction Ratio Based on Nested Structure 基于嵌套结构的新型高收缩比软作动器设计与分析

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021383

Qing Zhu, Yitian Li, Qingyun Liu, Mengqian Tian

引用次数: 0

Order Priority Decision of Manufacturing Enterprises: An Improved Delphi-AHP-TOPSIS Methodology 制造企业订单优先决策:一种改进的Delphi-AHP-TOPSIS方法

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021417

Yuanhao Hu, Lei Xu, Junbai Zhong, Han Gao, Zongliang Mou

引用次数: 0

Vision-driven High Precision Positioning Method for Bracket Assembly with Industrial Robot 工业机器人支架装配的视觉驱动高精度定位方法

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021493

Cheng-Cheng Li, Q. Bi

{"title":"Vision-driven High Precision Positioning Method for Bracket Assembly with Industrial Robot","authors":"Cheng-Cheng Li, Q. Bi","doi":"10.1109/WCMEIM56910.2022.10021493","DOIUrl":"https://doi.org/10.1109/WCMEIM56910.2022.10021493","url":null,"abstract":"The quality of the bracket assembly is an important guarantee for the successful launch of the rocket. The assembly accuracy of the bracket installed inside rockets is affected by bracket pose estimation, robot grasping, and positioning. We have proposed a recognition and pose estimation algorithm that integrates 2D and 3D vision to improve the bracket assembly accuracy. A position-based visual servo bracket grasping method is used to avoid the poor absolute positioning accuracy of the industrial robot. Then a small field-of-view vision system was established to achieve precise positioning of the bracket. We also developed a quick and precise hole detection algorithm based on YOLOv5 and caliper vision operator to compensate for the absolute positioning error of industrial robots. With the help of a vision servo grasping strategy and high precision re-positioning algorithm, the bracket's assembly hole positioning accuracy can finally reach 0.05mm. It is worth mentioning that the methods proposed in this paper have been successfully applied in the flexible automatic assembly line of the brackets used in rockets.","PeriodicalId":202270,"journal":{"name":"2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123861392","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

Estimation of near-surface NO2 based on TROPOMI and provincial control stations' data using machine learning 基于TROPOMI和省级测控站数据的近地表NO2机器学习估算

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021549

F. Deng, Yijian Chen, Lanhui Li, Cong Wang, Luwei Cao, Chaofeng Peng

{"title":"Estimation of near-surface NO2 based on TROPOMI and provincial control stations' data using machine learning","authors":"F. Deng, Yijian Chen, Lanhui Li, Cong Wang, Luwei Cao, Chaofeng Peng","doi":"10.1109/WCMEIM56910.2022.10021549","DOIUrl":"https://doi.org/10.1109/WCMEIM56910.2022.10021549","url":null,"abstract":"Near-surface nitrogen dioxide NO2 concentration is an essential indicator for ambient air quality monitoring. In this study, the extreme gradient boosting (XGBoost) algorithm and random forest algorithm in machine learning are used to combine the TROPOspheric Monitoring Instrument(TROPOMI) high-resolution remote sensing images, meteorological and other auxiliary data with ground-level NO2 concentration monitoring data (including national and provincial control stations) to construct a dataset of estimation samples and conduct research on estimating the near-surface NO2 concentration on a grid with a spatial precision of 0.05° in Sichuan Province. According to the ten-fold cross-validation results of the test and training sets, the XGBoost model has better accuracy and generalization performance (R2=0.875, RMSE=4.774 ug/m3), In addition, SHapley Additive exPlanation(SHAP) was employed after its development, which showed that TROPOMI satellite data contributed the most to the near-surface NO2 estimation. By contrasting the results with the data set using only national control stations, we can see that after including the atmospheric monitoring data from provincial control stations, the estimated NO2 concentration near the ground is more consistent with the data distribution of ground monitoring stations. Moreover, the spatial distribution of concentration is more continuous and homogeneous, providing essential support for local governments to regulate the atmospheric environment precisely.","PeriodicalId":202270,"journal":{"name":"2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124172138","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

Design and implementation of super BOM based on dynamic library table 基于动态库表的超级BOM的设计与实现

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021497

FanFan, Yan Rong

{"title":"Design and implementation of super BOM based on dynamic library table","authors":"FanFan, Yan Rong","doi":"10.1109/WCMEIM56910.2022.10021497","DOIUrl":"https://doi.org/10.1109/WCMEIM56910.2022.10021497","url":null,"abstract":"In the product lifecycle, there exist multi-view Boms for different departments and functions. Each department in the custom when the BOM is not a unified specification design and management, and for different products of different enterprise each department involved in custom BOM. BOM attribute column is also a dynamic variable, most enterprises for BOM custom is still adopt the way of print before the department and the department of information sharing. Therefore, this paper proposes a concept of super BOM table, which can dynamically generate each business BOM table to meet the customization requirements of each department for BOM table. In addition, this paper also designs a super BOM creation platform based on B/S architecture to realize the paperless management of BOM., and proposes a new database access development mode for dynamic table building behavior. The last part of the article takes the machine tool product of A company as an example to test the related functions of the web platform. Practice has proved that the design and implementation of super-BOM based on dynamic library table makes the way of customized BOM more standardized and convenient, realizes the paperless management of BOM information, and greatly improves the management level of BOM table in enterprises.","PeriodicalId":202270,"journal":{"name":"2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124222780","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 Improved SURF Algorithm with FREAK Descriptor for BGA Component Image Stitching 一种改进的带有FREAK描述符的SURF算法用于BGA分量图像拼接

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021511

F. Chen, Jielin Deng

{"title":"An Improved SURF Algorithm with FREAK Descriptor for BGA Component Image Stitching","authors":"F. Chen, Jielin Deng","doi":"10.1109/WCMEIM56910.2022.10021511","DOIUrl":"https://doi.org/10.1109/WCMEIM56910.2022.10021511","url":null,"abstract":"This paper presents an image stitching method of BGA component for industrial operation. The mounter is the core equipment of the surface mount system, and it currently has no way to place components larger than the camera's field of view. Therefore, a high-speed image stitching method of BGA component is still not available. In this method, the hu invariant moment is used to determine the overlapping area of the image and reduce the range of feature point extraction. After obtaining the feature points, the differences between the SIFT (Scale Invariant Features Transform) algorithm, the SURF (Speeded Up Robust Features) algorithm and the improved SURF algorithm are compared. The improved SURF algorithm combines the SURF feature extraction method and the FREAK (Fast Retina Keypoint) descriptor is developed. After the feature points are processed by BFMather matching and RANSAC algorithm, the image transformation matrix of the two images is calculated. Finally, the perspective transformation is performed on the image to complete the image stitching. This image stitching method is shown to be simple and effective for high-speed industrial application. The procedure taken can be extended to other similar IC component and to other machine.","PeriodicalId":202270,"journal":{"name":"2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124234109","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: 1

Research on Structure Optimization and Internal flow of Cyclone in Catalytic Cracking Device 催化裂化装置旋流器结构优化及内部流动研究

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021489

Wang Wan-lin

{"title":"Research on Structure Optimization and Internal flow of Cyclone in Catalytic Cracking Device","authors":"Wang Wan-lin","doi":"10.1109/WCMEIM56910.2022.10021489","DOIUrl":"https://doi.org/10.1109/WCMEIM56910.2022.10021489","url":null,"abstract":"The third stage cyclone (TTS) in the catalytic cracking device is the pivotal part to separate and recover catalyst particles, and it can ensure the normal operation of follow-up process. Internal flow patterns in it are particularly important for the selection and use of the equipment. In this paper, the structure parameters of the PV third stage cyclone of 2.8 million tons/year catalytic cracking device in a chemical plant are determined. Simulation of the turbulent 3D flow has been done with Reynolds stress model (RSM) and discrete phase model (DPM). Velocity and pressure drop patterns in the cyclone, effects of the inlet duct dimension on the separation performance and pressure drop, and the motion and separation efficiency of different diameter particles were analyzed. The results indicate that the flow field inside the cyclone forms a typical Rankin vortex flow pattern, and simulated pressure drops agree well with experimental results, which validates the numerical simulation method. When the inlet area is unchanged, the separation efficiencies first increase and then decrease with the increase of inlet height, and the optimal ratio of inlet height to cyclone's body diameter is 0.58. The migration trajectory of small particles have great randomness, and they are easy to escape from the vortex finder affected by the gas flow. The large particles rotate along the relatively large diameter and can be separated well. These results can provide the reference for the flow mechanism analysis and the industrial application of TTS.","PeriodicalId":202270,"journal":{"name":"2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125570086","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 Research of Droppable Ballast Device of Manned Submersible based on Computer-aided Ergonomics design 基于计算机辅助工效学设计的载人潜水器可落碴装置研究

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021460

Ren Yu-gang, Zhang Han-Bin, Shi Xian-peng

引用次数: 0