检索结果-内蒙古大学图书馆

2nd International Conference on Algorithm, Image Processing and Machine Vision, AIPMV 2024

作者： Meng, Junhao Wen, Sibo Changchun University of Science and Technology Mechatronics Engineering Jilin Changchun China Changchun University of Science and Technology Opto-Electronic Information Science and Engineering Jilin Changchun China

ISBN: (纸本)9798350390254

Surface defects are important factors affecting product quality and safety, and traditional inspection methods suffer from low efficiency and low accuracy. We can reduce the false detection rate of surface defects on steel, this study proposes an improved method for steel surface inspection based on improved YOLOv8n network. By replacing the Spatial Pyramid Pooling Fusion (SPPF) module, YOLOv8n algorithm optimizes the speed and accuracy of identifying and detecting steel surface defects. After testing, our YOLOv8n-based modelling method has achieved better results in metal surface defect detection than normal approach and can be useful in practical applications. The enhanced algorithm demonstrates substantial superiority in identifying flaws on steel surfaces, thereby offering a robust approach to ensure quality control in industrial manufacturing processes. © 2024 IEEE.

关键词： Surface defects

来源：评论

学校读者我要写书评

暂无评论

Vision-Based Hybrid Detection for Pick and Place Application in Robotic Manipulators

Vision-Based Hybrid Detection for Pick and Place Application...

引用

2023 International Conference on Robotics and Automation in Industry, ICRAI 2023

作者： Anjum, Muhammad Umar Khan, Umar Shabaz Qureshi, Waqar Shahid Hamza, Ameer Khan, Wajih Ahmed College of Electrical and Mechanical Engineering National University of Sciences and Technology Department of Mechatronics Engineering Islamabad Pakistan

ISBN: (纸本)9781665464727

Pick and place using cobots is a common application in industry. In a cyber-physical system, a smarter cobot with vision sensing can decrease the uncertainty in decision-making for acquiring the position of objects in a scene. In this paper, a UR5 cobot is used as a cobot to automatically detect objects on a tabletop utilizing a monocular wrist camera. An improved statistical method and error reduction approach is designed by formulation of a mathematical relation for estimating the position of the object (w.r.t to the manipulator coordinate system) using the object detected in the camera coordinate system. Firstly, correspondence between simulated world coordinates and image coordinates is used to make a relation. This is followed by an error reduction approach by capturing multiple images and gradually moving towards the target centre. The object location accuracy of 99.785% was achieved using the statistical method. The error is reduced up to 2mm which is compensated since the gripper is still able to pick up the object. Our proposed method can be used to accurately approach an object's location and can be used effectively in pick-and-place applications using robotic manipulators. Fruit sorting has been used as a sample application however the proposed method is generic and can be applied to any object. © 2023 IEEE.

关键词： Decision making

来源：评论

学校读者我要写书评

暂无评论

Surface Modification of Henequen Fibers with Catalyst for Improving Mechanical and Thermal Properties in Phenolic Composites for Automotive Uses

Surface Modification of Henequen Fibers with Catalyst for Im...

引用

SAE Automotive Technical Papers, WONLYAUTO 2024

作者： Seeniappan, Kaliappan Natrayan, L. KCG College of Technology Department of Mechatronics Engine India Saveetha School of Engineering SIMATS Department of Mechan India

In this study, henequen fibers that had been treated with NaOH were used as reinforcements in phenolic-based materials. The hot-pressing method was used to create composites, which were then tested for tensile, flexural, fundamental, and thermogravimetric characteristics. When compared with samples that were untreated, the total attributes of fiber interface modification and treatment improved. The treated varieties of 50% henequen materials had the best tensile qualities of all composites, although their flexural values fell somewhat in comparison to the unprocessed materials. Fiber processing reduced the three-point bending characteristics of henequen composites. SEM was used to investigate the behavior of matrix and fiber bonding prior to and following pretreatment. Processed with 50% henequen resulted in improved fiber dispersion, 60% henequen resulted in void content, whereas 40% henequen resulted in inadequate fiber/matrix interface bonding. Thermogravimetric evaluation was used to investigate the behavior of processed henequen and phenolic materials at high temperatures and discovered that their thermal resilience was improved due to strong bonding between the layers. Coated 50% henequen demonstrated improved characteristics due to the proportion of fiber/matrix blending and improved bonding between surfaces. Henequen material has a chance to be used for exterior use as well as artificial roof and wall construction. © 2024 SAE International. All rights reserved.

关键词： Tensile strength

来源：评论

学校读者我要写书评

暂无评论

Study of a Dynamic Impedance Matching Method for Ultrasonic Bone Knife Transducer

Study of a Dynamic Impedance Matching Method for Ultrasonic ...

引用

2024 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2024

作者： Wu, Junqiang Zhang, Hongjie Cai, Yangchun Tiangong University Tianjin Key Laboratory of Modern Mechatronics Equipment Technology School of Mechanical Engineering Tianjin China

ISBN: (纸本)9798350362107

Since the stability of the working performance of ultrasonic bone knife transducer is closely related to the dynamic impedance matching, this paper designs a dynamic impedance matching closed-loop control system. The dynamic impedance calculation model of ultrasonic bone knife transducer is established, and on this basis, the voltage, current true RMS value and dynamic impedance phase monitoring circuit and variable inductance adjustment circuit are designed during the working process of ultrasonic bone knife transducer, and the real-time calculation of impedance matching inductance is realized. The impedance matching closed-loop control system was also tested, and the experimental results show that the dynamic impedance matching method can satisfy the ultrasonic bone knife transducer working in a purely resistive state, and the steady state output amplitude of the current is significantly improved compared with that before the matching, which further lays down a foundation for the frequency tracking control of the ultrasonic bone knife transducer. © 2024 IEEE.

关键词： Closed loop control systems

来源：评论

学校读者我要写书评

暂无评论

Research on a Novel Electromechanical Booster Brake

Research on a Novel Electromechanical Booster Brake

引用

2024 IEEE International Conference on Electrical Energy Conversion Systems and Control, IEECSC 2024

作者： Kang, Jian Li, Huan Zhao, Jiarui Hao, Shuanghui School of Mechatronics Engineering Harbin Institute of Technology Harbin China Shandong Taynic Electromechanical Technology Co. Ltd Zibo China

ISBN: (纸本)9798350389357

With the rapid development of new-energy vehicles, the traditional vacuum brake booster no longer meets the requirements of the automobile braking system. This paper proposes a novel direct-drive and high-tracking electric brake booster system, where the hollow rotor of the booster motor is coupled with a screw to convert the motor's rotary motion into linear motion. In the structure of the new electric booster, the gear reduction mechanism or vacuum booster pump of the traditional booster is removed and the transmission link is reduced, resulting in not only a higher transmission efficiency but also a much smaller booster brake system and miniaturization of the electric booster brake system. Moreover, the structure has a redundant braking link that realizes mechanical braking in the case that the brake booster system fails. The redundant braking structure is not only highly reliable but also has a simple system structure. © 2024 IEEE.

关键词： Electric brakes

来源：评论

学校读者我要写书评

暂无评论

Reinforcement Learning for Optimal Renewable Energy Sources Scheduling

Reinforcement Learning for Optimal Renewable Energy Sources ...

引用

2024 IEEE PES Innovative Smart Grid Technologies Europe Conference, ISGT EUROPE 2024

作者： Nejad, Hamid Mohammad Asefi, Sajjad Kilter, Jako Kaby Alloys Co Iran Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia

ISBN: (纸本)9789531842976

The increasing penetration of renewable energy sources (RES), such as wind and PV, in distribution systems, introduces challenges, such as optimal scheduling, due to their intermittent nature. This paper presents a reinforcement learning (RL) algorithm to address the optimal scheduling of RES in distribution systems. The primary objective is to improve the system's technical parameters such as voltage profile and power loss. Additionally, the environmental performance index (CO2 emission) has been assessed for the case. The presented approach is carried out with the IEEE 33-bus radial distribution network. Simulation results demonstrated that the proposed RL-based approach effectively balanced these objectives. Importantly, it also exhibited adaptability to sudden changes in system conditions, resulting decrease in the system losses. © 2024 IEEE.

关键词： Energy management Optimization Reinforcement learning Renewable energy sources scheduling

来源：评论

学校读者我要写书评

暂无评论

Design and fabrication of a mobile robot for weed removal applications in agricultural fields 3

Design and fabrication of a mobile robot for weed removal ap...

引用

3rd International Conference on Artificial Intelligence For Internet of Things, AIIoT 2024

作者： Natesan, Nandan Arunkumar, V. Sathiyavathi, S. Kalaiarassan, G. Vellore Institute of Technology School of Computer Science and Engineering Chennai India Kongu Engineering College Perundurai Department of Mechatronics Engineering Erode India Vellore Institute of Technology School of Mechanical Engineering Vellore India

ISBN: (纸本)9798350372120

Agriculture is one of the most important aspects across the globe which is also a primary task for any country to lead their economic growth and to be a healthy country. The objective of agriculture is to produce various food materials, vegetables and fruits as an outcome of the process. But to provide the outcome from agriculture is not as simple as it looks, Farmers face many issues while making the outcome and they need to work separately to overcome this problem. One of the issues faced by the farmer is the weed management. Weed Management is that the method of dominant that the expansion and removal of the weeds in timely manner. The weeds present in the fields have a major impact on the farmers in terms of their reduction in yield and loss in the capital income. In all recent surveys, it is stated that Weeds present in the field causes almost 60 to 75 percentage loss in agriculture. In order to solve this problem and to give a tentative visioned solution, this project focuses on the development of a mobile robot which can identify the weeds in the field while traversing the field and also capable of differentiating the weeds with crops and other small plants and after the identification, weeds are removed by the weed remover. Apart from removing the weeds this project can also give the small summary of the traversed agricultural land. © 2024 IEEE.

关键词： Machine design

来源：评论

学校读者我要写书评

暂无评论

Kinematic simulations and design of a steering upright for a single seater electric car

引用

International Journal of Vehicle Noise and Vibration 2024年第1期20卷 27-48页

作者： Ganju, Shubham Furtado, Kelly Ann Dennis Birawat, Fanil Harshad Shenoy, Nagesh Acharya, Subash Department of Mechanical and Industrial Engineering Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal576104 India Department of Mechatronics Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal576104 India

This work discusses a systematic approach for design and analysis of a steering upright based on suspension hardpoint analysis. The steps followed would ensure anticipated performance of a vehicle in terms of ride comfort and handling. The suspension hardpoints were determined using LOTUSTM Shark suspension analysis software based on kinematic simulations. The geometric model of the upright was then created in accordance with the hardpoints obtained. Static structural analysis was performed on the preliminary upright design and design modifications were done to reduce the weight. Further, a suitable material was selected for the upright based on a comparison of values of stress, deformation, safety factor and mass for different upright materials. In addition, fatigue analysis was performed to compute the life of the upright. The manufactured uprights were assembled with other suspension assembly components and were tested under different on road conditions to observe for any failure. Copyright © 2024 Inderscience Enterprises Ltd.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Investigation of Dielectric Response in a 22/0.4 kV Distribution Transformer: Effects of Moisture Content 14

Investigation of Dielectric Response in a 22/0.4 kV Distribu...

引用

14th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2024

作者： Daengdee, Danaiwat Bunlaksananusorn, Chanin Suksawat, Dusit Chumpiboon, Komin Jeenmuang, Siwakorn Pattanadech, Norasage School of Engineering King Mongkut's Institute of Technology Ladkrabang Department of Mechatronics Engineering Bangkok Thailand School of Engineering King Mongkut's Institute of Technology Ladkrabang Department of Electrical Engineering Bangkok Thailand

ISBN: (纸本)9798350374605

Transformers play a crucial role in power systems, ensuring efficient energy transmission and distribution. This research focuses on a 22/0.4 kV transformer decommissioned after over 20 years of service. The study involves draining the transformer oil completely and refilling it with oil characterized by known moisture content and breakdown voltage levels until reaching normal operating conditions. The objective is to study the effects of increased moisture content on the dielectric response within the actual structure of the transformer. Diagnostic measurement techniques, including Frequency Domain Spectroscopy (FDS) and Polarization Depolarization Current (PDC), are utilized to evaluate the insulation condition of the transformer. FDS provides information on the dielectric response over a wide frequency range, while PDC assesses the polarization and depolarization behavior of the insulation material. These techniques offer valuable information on the ageing and moisture content of the insulation. The experimental results will be presented and discussed in this paper. © 2024 IEEE.

关键词： Depolarization

来源：评论

学校读者我要写书评

暂无评论

Optimizing Carbon Monoxide Emission Reduction Using Rice Husk Activated Carbon in Automobile Exhaust Systems

Optimizing Carbon Monoxide Emission Reduction Using Rice Hus...

引用

SAE Automotive Technical Papers, WONLYAUTO 2024

作者： Natrayan, L. Seeniappan, Kaliappan SIMATS Department of Mechanical Engineering Saveetha Schoo India KCG College of Technology Department of Mechatronics Engine India

This research effort is to optimize the conditions to minimize carbon monoxide (CO) gas emissions utilizing activated carbon derived from rice husks, an abundant agricultural waste. In the automobile industry, addressing vehicular emissions is crucial due to environmental ramifications and stringent regulatory mandates. This study presents an innovative and potentially cost-effective solution to capture CO emissions, mainly from motorcycles. The eco-friendly nature of using rice husks and the detailed findings on optimal conditions (20 m/s gas flow rate, 0.47 M citric acid concentration, and 30 g mass of activated carbon) make this research invaluable. These conditions achieved a commendable CO adsorption rate of 54.96 ppm over 1250 s. Essentially, the insights from this research could spearhead the development of sustainable automobile exhaust systems. By integrating activated carbon into these systems, there's potential to capture CO and possibly other detrimental gases, reducing the environmental impact of vehicles. This approach might herald a new era in environmentally conscious automotive technologies. © 2024 SAE International.

关键词： Automotive industry

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：