Transactions of The Canadian Society for Mechanical Engineering最新文献_第3页

Shifting quality analysis of unmanned tractor equipped with series hydro-mechanical transmission 配备串联液力机械变速器的无人驾驶拖拉机的换挡质量分析

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2024-03-05 DOI: 10.1139/tcsme-2023-0123

Xiaohan Chen, Yehui Zhao, Kuan Liu, Guangming Wang, Yue Song, Prasun Chakrabarti

{"title":"Shifting quality analysis of unmanned tractor equipped with series hydro-mechanical transmission","authors":"Xiaohan Chen, Yehui Zhao, Kuan Liu, Guangming Wang, Yue Song, Prasun Chakrabarti","doi":"10.1139/tcsme-2023-0123","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0123","url":null,"abstract":"The series hydro-mechanical transmission (HMT) can improve the power performance and fuel economy of unmanned tractors at a lower cost. However, its shifting impact problem needs to be solved before it can be applied in practice. In this study, the control parameters of the HMT power-shift system were optimized from the perspectives of energy loss and driving comfort to improve the shifting quality of the transmission. First, the powertrain of the HMT was introduced. Second, a shifting dynamics model of the HMT was established and experimentally validated. Third, based on the single-factor simulation results, the influence of each factor on the shifting quality of the tractor was analyzed. Finally, a matching strategy for shifting parameters was proposed, and related simulation analysis was conducted on the shifting quality under plowing conditions. Compared to the standard parameters, the results show that the optimized shift parameters reduce the sliding friction work of the clutch under 9 operating conditions as well as the peak acceleration of the tractor under 12 operating conditions. In summary, the parameter-matching method proposed in this study was effective and provided theoretical and methodological support for the development of HMT and its control system for unmanned tractors.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140265222","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

Dynamic theory and experimental testing in ipsilateral offset dual-motor excitation system 同侧偏置双马达激励系统的动态理论和实验测试

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2024-01-25 DOI: 10.1139/tcsme-2023-0105

Yangyang Xu, Pan Fang, Fang Xie, Weiling Xiong, Dingwu Ye, Yongjun Hou, Liming Yang

{"title":"Dynamic theory and experimental testing in ipsilateral offset dual-motor excitation system","authors":"Yangyang Xu, Pan Fang, Fang Xie, Weiling Xiong, Dingwu Ye, Yongjun Hou, Liming Yang","doi":"10.1139/tcsme-2023-0105","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0105","url":null,"abstract":"This paper addresses unbalanced trajectories of dual-motor vibrating screens by proposing a dynamic theory and experimental testing. Firstly, based on the Lagrange equation, the dynamic model of ipsilateral offset dual-motor excitation system is established. Subsequently, the steady response is worked out by solving the differential equation of motion of the vibrating body. Then, the synchronization condition and synchronization stability criterion of the system are determined employing the small parameter method and the Routh-Hurwitz criterion. Numerical analysis methods are given to reveal the relationship between structural parameters and synchronization characteristics of the vibration system. Moreover, an mechanical-electric coupling model is developed to study dynamic characteristics. The results demonstrate that synchronization condition can be described with capture torque and difference of output torque between motors; The synchronization ability is enhanced by improving installation distance of the motors; Additionally, Increasing angle β or decreasing angle θ of the motors is in favor of optimization of centroid trajectory; swing oscillation of the box can be controlled by adjusting the main inclination angle of motors; in such a condition, equilibrium of motion trajectory of system is enhanced. Finally, the validity method for designing vibrating screen is verified through theoretical calculations, simulation analysis, and experiments.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139598707","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

DESIGN OF SUSTAINABLE ENERGY HARVESTERS USING A 3D CAR SUSPENSION SYSTEM MODEL AND HALF-WIDTH SPEED BUMP 利用 3D 汽车悬挂系统模型和半宽减速带设计可持续能量收集器

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2024-01-24 DOI: 10.1139/tcsme-2023-0076

Min-Chie Chiu, M. Karkoub, M. Her

{"title":"DESIGN OF SUSTAINABLE ENERGY HARVESTERS USING A 3D CAR SUSPENSION SYSTEM MODEL AND HALF-WIDTH SPEED BUMP","authors":"Min-Chie Chiu, M. Karkoub, M. Her","doi":"10.1139/tcsme-2023-0076","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0076","url":null,"abstract":"This study aims to not only design a vibration energy harvester integrated in a three-dimensional multi-particle system, but also investigate the longitudinal and lateral body sway and the effect of front and back wheel interlocking caused by the eccentric loading of the vehicle. Using multidimensional vehicle suspension system vibration modes for analysis, this study evaluates the impact of lateral and longitudinal eccentricity on the displacement of the four-suspension system wheel axes. In addition, this study discusses the effect of discontinuous half-width sinusoidal speed bump on power generation and maximum power generation capacity under good ride comfort conditions. To maximize the efficient electrical power from the car's suspension system through the use of energy harvesters, we have employed the Simulated Annealing algorithm, a robust global optimization technique. The objective function chosen for this optimization is the root-mean-square electrical power, represented as WTT(RMS). In addition to this, we have considered the comfort experienced by passengers, incorporating the Ride Comfort Efficiency into the objective function during the optimization process. As a result of this optimization, a 3D car model equipped with four energy harvesters has been fine-tuned to achieve a significant increase in induced electrical power, ultimately reaching an impressive 0.2 Watt.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139602320","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

Dynamic and thermal coupling modeling analysis of full-ceramic angular contact ball bearing considering sliding 考虑滑动因素的全陶瓷角接触球轴承动态和热耦合建模分析

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2024-01-24 DOI: 10.1139/tcsme-2023-0178

Ke Zhang, Liqi Zhang, Zhan Wang, Zinan Wang, Liuwang Gao

{"title":"Dynamic and thermal coupling modeling analysis of full-ceramic angular contact ball bearing considering sliding","authors":"Ke Zhang, Liqi Zhang, Zhan Wang, Zinan Wang, Liuwang Gao","doi":"10.1139/tcsme-2023-0178","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0178","url":null,"abstract":"The sliding contact model and sliding dynamic model between ball and outer ring are established to investigate the ceramic bearing vibration characteristic when ball slides. The vibration characteristic and periodic rules of the system are analyzed by calculation results of the model. The heat generation model of bearing slippage is established, and the influence mechanism between temperature and oil film viscosity caused by slippage is analyzed. It can be seen from the calculation results that the contact deformation between ball and outer ring increases with the increase of radial load, and the contact deformation is smaller than the calculation results of Hertz contact model. An experimental platform for testing vibration and temperature under radial load conditions is established. The experimental results show that the vibration characteristic and temperature variation rule of bearing under large load conditions are consistent with the calculation results of the model. The average error of vibration amplitude and temperature is only 1.09% and 1.3% at 10000 r/min. It can be seen that the model established in this paper can simulate the dynamic characteristic of ceramic bearing when ball slides, and provides a certain theoretical basis for the research of rotating machinery mechanism under sliding condition.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139602234","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

On the simulation of a wing with detached end-plates using an actuator line based on an anisotropic Gaussian kernel 使用基于各向异性高斯核的推杆线模拟带有分离端板的机翼

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2024-01-22 DOI: 10.1139/tcsme-2023-0091

M-A. Breault, P. Rochefort, G. Dumas

引用次数: 0

Research on Optimal Fast Terminal Sliding Mode Control of Horizontal Vibration of High-speed Elevator Car System 高速电梯轿厢系统水平振动的最佳快速终端滑模控制研究

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-12-15 DOI: 10.1139/tcsme-2023-0055

Hua Li, Qin He, Li Li, Lixin Liu

{"title":"Research on Optimal Fast Terminal Sliding Mode Control of Horizontal Vibration of High-speed Elevator Car System","authors":"Hua Li, Qin He, Li Li, Lixin Liu","doi":"10.1139/tcsme-2023-0055","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0055","url":null,"abstract":"An optimal fast terminal sliding mode control strategy is proposed to suppress effectively the horizontal vibration of the high-speed elevator car system is caused by uncertainties such as rail unevenness, elevator load variation, and component friction and wear. Firstly, considering the elevator's composition structure and vibration characteristics, a 4-degree-of-freedom car system horizontal vibration active control model with a symmetric distribution of the control center is established. Secondly, considering the nonlinear factors of the rolling guide shoe and the external excitation, an optimal fast terminal sliding mode controller (PFTSMC) based on the sliding mode variable structure control is designed to eliminate the horizontal vibration of the car, define the nonsingular terminal sliding mode surface, and introduce the fast terminal convergence law based on the fast terminal attractor to ensure the accessibility of the sliding mode motion and reduce the jitter vibration. In addition, optimization of controller parameters using random weight particle swarm algorithm (RNW-PSO) to improve the controller's vibration suppression performance and robustness. Finally, the proposed controller can achieve more than 51.2% attenuation of horizontal vibration acceleration and displacement, showing that PFTSMC can effectively reduce the horizontal vibration of high-speed elevator car systems and improve ride comfort.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997136","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 Study on the Contact Quality Improvement of Fin to Tube Assemblies 鳍片与管组件接触质量改进研究

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-12-12 DOI: 10.1139/tcsme-2023-0062

Zijian Zhao, Hakim bouzid

{"title":"A Study on the Contact Quality Improvement of Fin to Tube Assemblies","authors":"Zijian Zhao, Hakim bouzid","doi":"10.1139/tcsme-2023-0062","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0062","url":null,"abstract":"The fin-to-tube assembly is a prevalent connection type in heat exchangers, particularly in smaller equipment. During the assembly process, a die expands the tube to close the gap between the tube and the fin collar, enhancing heat transfer. The die expansion reduces the gap and creates slight interference that enables the fin collar to adhere to the tube. However, contact is not uniformly continuous across the width of the mating surfaces, as indicated by recent research. Due to this suboptimal contact quality, the conduction of heat is significantly impaired, and the efficiency of the heat exchanger is thus compromised. This study aims to establish a relationship between the profile shape of the fin hole and the contact quality, offering guidelines to enhance tube-to-fin contact. Tubes of various materials, dies of different sizes, and fins with a collar featuring an hourglass proposed shape are examined. The influence of a fin-hole hourglass shape will be assessed through a series of expansion simulations conducted on diverse finite element models. Subsequently, the micro-gaps formed during the expansion process at the tube-to-fin interface will serve to evaluate the quality of the contact surface, and a thermal transient analysis will be implemented to corroborate the findings.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009943","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

ERROR COMPENSATION OF A 2TPR&2TPS PARALLEL MECHANISM BASED ON PARTICLE SWARM OPTIMIZATION 基于粒子群优化的 2tpr&2tps 并行机制的误差补偿

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-12-08 DOI: 10.1139/tcsme-2023-0004

Chao He, Mingfang Chen, Hongjian Liang, Yongxia Zhang, Zhongping Chen

引用次数: 0

Trends in Research on Latent Heat Storage Using PCM, A Bibliometric Analysis 利用 PCM 进行潜热储存的研究趋势，文献计量分析

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-12-04 DOI: 10.1139/tcsme-2023-0093

Atif Shezad, Muhammad Tufail, Muhammad Uzair

{"title":"Trends in Research on Latent Heat Storage Using PCM, A Bibliometric Analysis","authors":"Atif Shezad, Muhammad Tufail, Muhammad Uzair","doi":"10.1139/tcsme-2023-0093","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0093","url":null,"abstract":"Latent heat thermal energy storage (LHTES) is particularly noteworthy thermal energy storage (TES) technology due to its high energy storage density. LHTES involves the use of phase change materials (PCMs) to store thermal energy, which can subsequently be used for heating and cooling applications as well as power generation. This paper outlines the techniques and tools employed to analyze existing literature on TES and LHTES systems research. Bibliometric, a statistical approach to analyzing written publications in specific fields of research, is used to identify significant findings and determine the course of scientific output. A strategic analysis of knowledge development is crucial for detecting opportunities and advancements within the field. This research offers valuable insights into the publication trends within the fields of TES and LHTES over the last three decades. Additionally, the study conducts a thorough examination of the geometric configurations of LHTES systems and their potential impacts on ongoing and future research. By tracking publication rates over thirty years, this study provides a comprehensive overview of how research in TES and LHTES has evolved. Understanding these trends helps researchers and policymakers gauge the growth and relevance of these fields in the context of energy storage and thermal management.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138605094","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

Comparison of Flow and Loss Aspects in the Rotors of a Counter Rotating Turbine 反转涡轮机转子中流量和损耗方面的比较

IF 0.9 4区工程技术

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2023-11-29 DOI: 10.1139/tcsme-2023-0100

Subbarao Rayapati

{"title":"Comparison of Flow and Loss Aspects in the Rotors of a Counter Rotating Turbine","authors":"Subbarao Rayapati","doi":"10.1139/tcsme-2023-0100","DOIUrl":"https://doi.org/10.1139/tcsme-2023-0100","url":null,"abstract":"Counter Rotating Turbine (CRT) is considered as an alternative way of obtaining more work without the use of another guide vane in a multi-stage turbine. In such a scenario, present study discusses about the flow transmission that takes place in rotors, which are rotating in the reverse direction to each other. CRT stage with nozzle and rotors is modeled using ICEMCFD 14.5. Total pressure is specified at the inlet of turbine stage and flow rate is specified at the second rotor outlet. Contours of total pressure and turbulence kinetic energy provide the flow pattern in terms of steadiness, wake formation, incidence, flow circulation and flow turbulence. Velocity vectors and streamlines offer clarity about flow separation, vortex formation and wake detection. Deviation of flow characteristics from inlet to outlet of CRT stage are also presented. For further understanding of the flow, transverse planes at difference locations of the rotors are taken. Entropy and secondary velocity vectors are used to identify the loss aspect at each section of the rotors. From the blade-to-blade contours, the effect of absence of second guide vane is clear. Clearly, flow through rotor 1 is advantageous and flow through rotor 2 is chaotic.","PeriodicalId":23285,"journal":{"name":"Transactions of The Canadian Society for Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139210941","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