Transactions of The Canadian Society for Mechanical Engineering最新文献_第5页

An ease-off tooth surface redesign for spiral bevel gears considering misalignment under actual working conditions 考虑实际工作条件下齿面偏差的螺旋锥齿轮缓脱齿面重新设计

4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-09-22 DOI: 10.1139/tcsme-2022-0145

Yanming Mu, Fangxia Xie, Xueming He

{"title":"An ease-off tooth surface redesign for spiral bevel gears considering misalignment under actual working conditions","authors":"Yanming Mu, Fangxia Xie, Xueming He","doi":"10.1139/tcsme-2022-0145","DOIUrl":"https://doi.org/10.1139/tcsme-2022-0145","url":null,"abstract":"To improve the loaded performance of spiral bevel gears, a novel tooth surface redesign method considering misalignment is proposed based on ease-off. First, the digital features of the contact pattern were extracted, and the equivalent misalignment was obtained by an optimal method according to the minimum deviation of the contact path. Second, a pinion target surface whose performance under misalignment was consistent with the original gear in standard position was built, and a pinion surface with good meshing performance under misalignment was redesigned with equivalent misalignment. Third, the flank modification was carried out to cut down on the loaded transmission error of gear under misalignment. Through simulations, it is found the transmission error and the contact path of redesign gear considering misalignment were the same as original gear in standard position. The loaded transmission error amplitude of original gear under misalignment was 43.91% higher than original gear in standard position, and the loaded transmission error amplitude of redesign gear after optimization under misalignment was 44.73% lower than original gear in standard position and 61.60% lower than original gear under misalignment. The tooth surface stress of redesigned gear after optimization under misalignment was also significantly improved. This proposed redesign method, which considers misalignment on the basis of ease-off, can greatly improve the loaded meshing quality of gear under actual working conditions.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136061132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A power storage system planning model for the Wolfe Island wind farm Wolfe岛风电场的储能系统规划模型

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-08-28 DOI: 10.1139/tcsme-2023-0016

Fuwei Rao, Zhong Li

引用次数: 0

Design and Application of Fault Diagnosis System of Machine Tool Angle Head Based on Boolean Matrix Filtering and Optimized BP Neural Network 基于布尔矩阵滤波和优化BP神经网络的机床角头故障诊断系统设计与应用

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-08-25 DOI: 10.1139/tcsme-2023-0044

Zeliang Zhang, Jing Chen, Yue Gu, Wanlin He, Jianfei Yao

引用次数: 0

Photovoltaic Thermoelectric Cooling System for Off-grid Vaccine Refrigerator: An Experimental Study 离网疫苗冰箱光伏热电制冷系统的实验研究

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-08-18 DOI: 10.1139/tcsme-2023-0003

Nazia Rodoshi Khan, Tasnuva Sharmin, MD Azazul Haque, Md. Hamidur Rahman

{"title":"Photovoltaic Thermoelectric Cooling System for Off-grid Vaccine Refrigerator: An Experimental Study","authors":"Nazia Rodoshi Khan, Tasnuva Sharmin, MD Azazul Haque, Md. Hamidur Rahman","doi":"10.1139/tcsme-2023-0003","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0003","url":null,"abstract":"The rapidly rising demand for refrigeration technologies, mainly in refrigeration and air conditioning, medical applications and electronic component cooling, produced much more energy than the requirement. Thermoelectric refrigeration is an innovative way to use additional energy to cool and reserve cooling. In this research, a Photovoltaic-thermoelectric refrigeration system capable of sustaining vaccine storage within the limit of 2 to 8 ℃ has been established by experimentally optimizing its volume and performance. The design specification is to cool the volume using forced convection to the desired temperature range in less than thirty minutes and sustain retained heat for at least the next hour. The experimental research is divided into two stages: the first determines the optimal volume of vaccine storage under different testing conditions using only grid power, and the second analyses storage performance using solar energy through PV integration. The solar direct drive and the solar drive with battery support have been timed, revealing a holding period of 4 hours 46 minutes and 5 hours 29 minutes, respectively. The refrigerator's design criteria, prospective characteristics, and final design are all thoroughly highlighted. Finally, we conclude that this research will likely benefit the modelling and analysis of thermoelectric cooling systems.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49190816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Analysis of Rail Corrugation Characteristics in the Vehicle Braking Section of Metro 地铁车辆制动段轨道波纹特性分析

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-08-16 DOI: 10.1139/tcsme-2023-0078

Z. Wang, Y. Xu

{"title":"Analysis of Rail Corrugation Characteristics in the Vehicle Braking Section of Metro","authors":"Z. Wang, Y. Xu","doi":"10.1139/tcsme-2023-0078","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0078","url":null,"abstract":"In order to study the evolution characteristics of corrugation in the vehicle braking section of metro, a three-dimensional wheel-rail transient contact finite element model is established, and the contact stick-slip characteristics and rail wear distribution features are analyzed. The results show that, under the braking condition, the interface has the stick-slip motion, indicating that the system is in the state of instability; the longitudinal relative slip is unevenly distributed, the peak position of the initial corrugation has a large longitudinal relative slip, and the transverse relative slip in the initial corrugation area is significantly larger than that in other areas, indicating that the initial corrugation will continue to develop and have a remarkable transverse wear trend. Under the non-braking condition, there is no stick-slip motion at the interface, and the longitudinal and transverse relative slip values are less than the corresponding results under the braking condition. The cause of corrugation in the vehicle braking section is the wheel-rail unstable stick-slip motion triggered by the vehicle braking, and the fixed operating mode of the train provides the wavelength-fixing condition for the development of the initial corrugation, which leads to its continuous deterioration.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41660559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Study on multibody contact load distribution characteristics of scraper conveying system of continuous miner 连续采煤机刮板输送系统多体接触载荷分布特性研究

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-07-28 DOI: 10.1139/tcsme-2023-0017

L. Yang, Hong Zhang, Yang Song, Wenzhou Chen, Youming Chen

{"title":"Study on multibody contact load distribution characteristics of scraper conveying system of continuous miner","authors":"L. Yang, Hong Zhang, Yang Song, Wenzhou Chen, Youming Chen","doi":"10.1139/tcsme-2023-0017","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0017","url":null,"abstract":"Understanding the interaction of scraper chain-sprocket-tail drum-chain path is of great significance to improve the transportation efficiency and service life of the intermediate scraper conveying system of fully mechanized excavation equipment. The dynamic characteristics of the internal tension, running resistance and multi-contact interface load of the scraper chain are the theoretical basis of the research. Firstly, a method for obtaining periodic cyclic dynamic load history is proposed, and then the model of single chain scraper conveyor for continuous shearer is constructed by using RecurDyn and simulation structure. Finally, the influence of parameters such as conveying inclination angle and running speed of sleeve scraper chain on the reliable operation of conveying system is determined. The results show that when the conveying angle is 12 °, the scraper conveying system runs stably and the impact between multi-rigid bodies is small. As the chain speed increases from 0.85 m / s to 2.4 m / s, the wear of the conveying system gradually increases, and the contact load distribution of the upper chain plate 2, the upper chain plate 3 and the lower chain plate 3 is seriously worn.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42592935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on reducing flow shock of the digital hydraulic wind turbine 降低数字式液压风机流动冲击的研究

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-07-27 DOI: 10.1139/tcsme-2022-0167

Zengguang Liu, Benguo Zhang, Liejiang Wei, Daling Yue, Lu Ren, Liqiang Su, Yuyang Zhao

{"title":"Research on reducing flow shock of the digital hydraulic wind turbine","authors":"Zengguang Liu, Benguo Zhang, Liejiang Wei, Daling Yue, Lu Ren, Liqiang Su, Yuyang Zhao","doi":"10.1139/tcsme-2022-0167","DOIUrl":"https://doi.org/10.1139/tcsme-2022-0167","url":null,"abstract":"The wind turbine with digital hydraulic transmission can make the corresponding hydraulic pump work according to the wind speed, so that the hydraulic wind turbine can maintain high efficiency in the whole working wind speed. However, the switching of different displacement hydraulic pumps will cause a large flow impact on the hydraulic system of the wind turbine, affecting the working characteristics of the wind turbine and the absorption of wind energy. Based on the analysis of the working principle of the digital hydraulic wind turbine, the scheme of 5MW wind turbine is designed and the AMESim modele is established. The dynamic characteristics of the digital hydraulic wind turbine under two switching modes are compared. An advance valve closing control strategy is proposed to reduce the instantaneous flow impact. Simulation results show that the control strategy diminished the system flow shock by about 50% when switching the hydraulic pump. Finally, a hardware-in-loop system of 5.5kW digital hydraulic turbine is built to verify the effectiveness of the proposed control strategy. The research results provide a theoretical basis and technical reference for the efficient utilization of wind energy and stable operation of the digital hydraulic wind turbines.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49144404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Analysis of Kinematic Characteristics of 2-P(RPS+UPS) Parallel Mechanism with Six Degrees of Freedom 2-P(RPS+UPS)六自由度并联机构运动特性分析

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-07-21 DOI: 10.1139/tcsme-2022-0156

Yu Wang, Xuejian Ma, Yundou Xu, Jiabin Wu, Jiantao Yao, Yongsheng Zhao

{"title":"Analysis of Kinematic Characteristics of 2-P(RPS+UPS) Parallel Mechanism with Six Degrees of Freedom","authors":"Yu Wang, Xuejian Ma, Yundou Xu, Jiabin Wu, Jiantao Yao, Yongsheng Zhao","doi":"10.1139/tcsme-2022-0156","DOIUrl":"https://doi.org/10.1139/tcsme-2022-0156","url":null,"abstract":"At present, there is an increasing demand for the workspace required for assembly of components, and a parallel mechanism with large workspace is urgently needed to make up for it. Therefore, in this paper, a 2-P(RPS+UPS) parallel mechanism (where S, P, R, and U represent spherical, prismatic, revolute, and universal joints) with four branched chains and six degrees of freedom is proposed and its kinematic characteristics are analyzed. First, the speed of the 2-P(RPS+UPS) parallel mechanism is numerically derived and verified by simulation using ADAMS software. Then, the motion decoupling characteristics of the mechanism are analyzed from the expression of the speed and position relationship between the input and output of the mechanism. To minimize the force on each branch in the workspace, scale optimization of the 2-P(RPS+UPS) mechanism and the Stewart mechanism is performed. Further, analysis of the dexterity, singularity, and workspace of the 2-P(RPS+UPS) mechanism are conducted, and the performance of the mechanism is compared with that of the Stewart mechanism. The proposed parallel mechanism has fewer branches, a simple kinematic model, strong motion decoupling, high bearing capacity, a large workspace, and a low initial position height. Moreover, it can be conveniently transported and stored. Therefore, it has good application prospects in assembly and posture adjustment scenes requiring large workspace.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41421545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Simulating Polymer Drag Reduction Using a Modified Mixing Length in Zero Pressure Gradient 在零压力梯度下使用改进的混合长度模拟聚合物减阻

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-07-17 DOI: 10.1139/tcsme-2022-0183

Joshua White, Gordon Holloway, T. Jeans

引用次数: 0

A doubt–confirmation-based visual detection method for foreign object debris aided by assembly models 装配模型辅助下基于双确认的异物碎片视觉检测方法

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-07-11 DOI: 10.1139/tcsme-2022-0143

Feifei Kong, Delong Zhao, Fuzhou Du

{"title":"A doubt–confirmation-based visual detection method for foreign object debris aided by assembly models","authors":"Feifei Kong, Delong Zhao, Fuzhou Du","doi":"10.1139/tcsme-2022-0143","DOIUrl":"https://doi.org/10.1139/tcsme-2022-0143","url":null,"abstract":"Foreign object debris (FOD) impacts significantly on the quality control during product assembly because it usually causes product failure. The vision-based method as a nondestructive and efficient technology has become an important approach to FOD detection. However, it faces two important challenges: (1) inexhaustible types (almost any object can become FOD) and (2) unpredictable locations (FOD can appear almost anywhere on surface of a product). Therefore, this paper proposes an FOD visual detection method based on doubt–confirmation strategy and aided by assembly models. Firstly, a coarse-to-fine method is designed for feature extraction and registration to align the test image with the reference image. Then, to solve the unpredictable location problem, different types of suspected FOD are extracted from the test image by a combined method of supervision and nonsupervision. Finally, to solve the inexhaustible type problem, an image comparison method based on a Histogram of Line Direction Angle is proposed, and re-recognition rules of suspected FOD established to complete the final discrimination. Experiments are conducted on a product with complex shape, and the results demonstrate the effectiveness and efficiency of our approach.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43089216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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