Pub Date : 2020-03-30DOI: 10.21742/ijcmdi.2020.6.1.05
Liu Ying-nan, Yi Shu-juan, Sun Dian-qi
With the improvement of the utilization rate of straws, the recovery question of rice straw has been focused. In the past, the recovery of rice straw needs a lot of manpower. also need to be equipped with a vehicle, most of bundling machine were traction type bundling machine in domestic, secretary was inefficient, this greatly increases the cost of recycling, and the recovery of straw caused two compactions of soil, so that farmers will burn a lot of straw, cause pollution of the environment. Therefore, this study is based on the whole feeding rice combine harvester. added the straw bale device, One-time finished the rice harvesting, threshing cleaning and warehousing and Rice straw compression, bale and other processes. Improve the recovery efficiency of rice straw, reduce the cost of straw recovery, reduced the number of mechanicals going in the fields. In this paper using UG software for the rice harvest tying device baling machine 3 d drawing, and carries on the kinematics simulation, the simulation for bundling device compression mechanism motion state laws.
{"title":"The Rice Straw Tying Device Parameters Using UG Software to Establish Three-Dimensional Model of Rice Harvest Tying Device Baling Machine","authors":"Liu Ying-nan, Yi Shu-juan, Sun Dian-qi","doi":"10.21742/ijcmdi.2020.6.1.05","DOIUrl":"https://doi.org/10.21742/ijcmdi.2020.6.1.05","url":null,"abstract":"With the improvement of the utilization rate of straws, the recovery question of rice straw has been focused. In the past, the recovery of rice straw needs a lot of manpower. also need to be equipped with a vehicle, most of bundling machine were traction type bundling machine in domestic, secretary was inefficient, this greatly increases the cost of recycling, and the recovery of straw caused two compactions of soil, so that farmers will burn a lot of straw, cause pollution of the environment. Therefore, this study is based on the whole feeding rice combine harvester. added the straw bale device, One-time finished the rice harvesting, threshing cleaning and warehousing and Rice straw compression, bale and other processes. Improve the recovery efficiency of rice straw, reduce the cost of straw recovery, reduced the number of mechanicals going in the fields. In this paper using UG software for the rice harvest tying device baling machine 3 d drawing, and carries on the kinematics simulation, the simulation for bundling device compression mechanism motion state laws.","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128666102","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}
Pub Date : 2020-03-30DOI: 10.21742/ijcmdi.2020.6.1.04
Jung-Hwang Choi, D. Baik
Environmental substances emitted by diesel engines are fatal to humans. In particular, PM2.5 penetrates deep into the lungs, providing the cause of lung cancer. Recently, the Euro 6 regulation is proposed and regulated to reduce the emission source emitted from automobiles, but due to the increasing number of vehicles, it is only suggested as a temporary measure. Not only the pollution sources emitted from automobiles, but also the increase of fine dust emitted from thermal power generation or fine dust introduced from outside by wind is very serious. In addition, the generation of fine dust in narrow spaces, for example subways, has a serious effect on human activities. Although research and development is conducted to collect such fine dust, it is not easy technology in reality. Currently, the fine dust collection technology is collected through the filter, but the collection performance depends on the pore size of the filter. The smaller the pore size, the higher the collection performance, but seriously affects the engine performance because the back pressure increases. Therefore, it is important to optimize the pore size, structure or material of the filter to minimize the influence on the back pressure. In addition, if the back pressure increases due to the filter, the engine performance is deteriorated, and a regeneration device that removes the collected PM is required. Such a filter regeneration device is an essential device especially for automobile engines. This paper aims to develop a technology to apply metal diesel particulate filter to a heavy-duty diesel engine for commercial generators to secure the optimization technology for occurred back-pressure satisfying emissions (PM, CO, HC) environmental regulations for regeneration strategy of diesel particulate filter in near future.
{"title":"Experimental Study on Diesel Particulate Filter Strategy for Generator","authors":"Jung-Hwang Choi, D. Baik","doi":"10.21742/ijcmdi.2020.6.1.04","DOIUrl":"https://doi.org/10.21742/ijcmdi.2020.6.1.04","url":null,"abstract":"Environmental substances emitted by diesel engines are fatal to humans. In particular, PM2.5 penetrates deep into the lungs, providing the cause of lung cancer. Recently, the Euro 6 regulation is proposed and regulated to reduce the emission source emitted from automobiles, but due to the increasing number of vehicles, it is only suggested as a temporary measure. Not only the pollution sources emitted from automobiles, but also the increase of fine dust emitted from thermal power generation or fine dust introduced from outside by wind is very serious. In addition, the generation of fine dust in narrow spaces, for example subways, has a serious effect on human activities. Although research and development is conducted to collect such fine dust, it is not easy technology in reality. Currently, the fine dust collection technology is collected through the filter, but the collection performance depends on the pore size of the filter. The smaller the pore size, the higher the collection performance, but seriously affects the engine performance because the back pressure increases. Therefore, it is important to optimize the pore size, structure or material of the filter to minimize the influence on the back pressure. In addition, if the back pressure increases due to the filter, the engine performance is deteriorated, and a regeneration device that removes the collected PM is required. Such a filter regeneration device is an essential device especially for automobile engines. This paper aims to develop a technology to apply metal diesel particulate filter to a heavy-duty diesel engine for commercial generators to secure the optimization technology for occurred back-pressure satisfying emissions (PM, CO, HC) environmental regulations for regeneration strategy of diesel particulate filter in near future.","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132507152","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}
Pub Date : 2020-03-30DOI: 10.21742/ijcmdi.2020.6.1.03
W. Sim, Sung-young Park
Computational Fluid Dynamics has been carried out for water flowmeter on this study. Two water flowmeters with different geometry have been modeled through the reverse engineering technique. Flow characteristics and rotation per minute of the blade have been calculated using body interaction function between internal passage of the flowmeter and the blade. As results of flow analysis, the flow momentum of FM1 is more evenly applied compared with that of FM2, which means that the blade of FM1 rotates more uniformly than that of FM2. The flow pattern of FM1 is well distributed from the bottom and middle to top, but that of FM2 shows lack of uniformity. It is believed that the uniformity of rotation is disrupted due to the ununiform momentum delivered on the blade wing. If we assume that the rotational speed is linearly proportional to the inlet flowrate, FM1 has 5.9% and FM2 has 16.8% error. FM1 is superior to FM2 in linearity. These results could be utilized as basic data to design inner structure of the flowmeter and to develop performance.
{"title":"Study on Internal Flow Characteristics of Water Flowmeter using Unsteady Computational Fluid Analysis","authors":"W. Sim, Sung-young Park","doi":"10.21742/ijcmdi.2020.6.1.03","DOIUrl":"https://doi.org/10.21742/ijcmdi.2020.6.1.03","url":null,"abstract":"Computational Fluid Dynamics has been carried out for water flowmeter on this study. Two water flowmeters with different geometry have been modeled through the reverse engineering technique. Flow characteristics and rotation per minute of the blade have been calculated using body interaction function between internal passage of the flowmeter and the blade. As results of flow analysis, the flow momentum of FM1 is more evenly applied compared with that of FM2, which means that the blade of FM1 rotates more uniformly than that of FM2. The flow pattern of FM1 is well distributed from the bottom and middle to top, but that of FM2 shows lack of uniformity. It is believed that the uniformity of rotation is disrupted due to the ununiform momentum delivered on the blade wing. If we assume that the rotational speed is linearly proportional to the inlet flowrate, FM1 has 5.9% and FM2 has 16.8% error. FM1 is superior to FM2 in linearity. These results could be utilized as basic data to design inner structure of the flowmeter and to develop performance.","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123623644","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}
Pub Date : 2020-03-30DOI: 10.21742/ijcmdi.2020.6.1.01
M. Chung
The importance of piping technologies related to refrigerant, operating fluid, and lubricant is increasing according to growth of the industries such as plant, electric home appliances, aviation, and automotive. The elongation during the bending and curvature change by spring back effect after the bending are caused by characteristics of pipe material. The fault in assembling is occurred by shape change of pipe. So, real-time measurement of pipe shape is required in the bending process. In this study, head for real-time measurement of pipe shape during the pipe bending process in the bending machine is proposed, designed, and manufactured. Verification test of developed measurement head is conducted. Also developed pipe shape measurement head is adopted and tested in the pipe bending machine.
{"title":"The Study on the Real-Time Measurement of Pipe Shape Applicable During Its Bending Process","authors":"M. Chung","doi":"10.21742/ijcmdi.2020.6.1.01","DOIUrl":"https://doi.org/10.21742/ijcmdi.2020.6.1.01","url":null,"abstract":"The importance of piping technologies related to refrigerant, operating fluid, and lubricant is increasing according to growth of the industries such as plant, electric home appliances, aviation, and automotive. The elongation during the bending and curvature change by spring back effect after the bending are caused by characteristics of pipe material. The fault in assembling is occurred by shape change of pipe. So, real-time measurement of pipe shape is required in the bending process. In this study, head for real-time measurement of pipe shape during the pipe bending process in the bending machine is proposed, designed, and manufactured. Verification test of developed measurement head is conducted. Also developed pipe shape measurement head is adopted and tested in the pipe bending machine.","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127732394","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}
Pub Date : 2019-12-30DOI: 10.21742/IJCMDI.2019.5.2.01
Min-seok Kim
The constant increase of energy consumption in the building sector is causing many problems such as global warming. In particular, as the consumption of lighting energy is second to only cooling and heating, a wide variety of research and technology development is being performed to resolve this problem. The light-shelf is a type of natural daylighting system that introduces outdoor natural light deep into the room, and various studies have been carried out in recognition of its efficiency. In particular, a previous study that combined a PV with a light-shelf was significant in terms of producing energy through the light-shelf. However, the previous study introduced the case in which the integrated PV and light-shelves attached the PV to the reflector of the light-shelf. In this way, the light-shelf and the PV operated at the same angle, which resulted in low daylighting and concentration efficiency. Therefore, the purpose of this study is to propose a movable light-shelf system with a built-in PV which operates at independent angles. The conclusions are as follows. The light-shelf system with a built-in PV proposed in this study consists of a structure where the light-shelf is installed at the bottom with the PV on top. In particular, the upper section has a hole to allow natural light to flow into the light-shelf at the bottom for daylighting. In addition, we enhanced the effectiveness of this study by suggesting control measures to operate the light-shelf system with a built-in PV. However, this study has limitations as it did not evaluate the performance of the light-shelf system with a built-in PV. Therefore, additional studies need to be performed in the future to evaluate and verify the performance.
{"title":"A Basic Study on Development of Movable Light-Shelf System with a built-in PV","authors":"Min-seok Kim","doi":"10.21742/IJCMDI.2019.5.2.01","DOIUrl":"https://doi.org/10.21742/IJCMDI.2019.5.2.01","url":null,"abstract":"The constant increase of energy consumption in the building sector is causing many problems such as global warming. In particular, as the consumption of lighting energy is second to only cooling and heating, a wide variety of research and technology development is being performed to resolve this problem. The light-shelf is a type of natural daylighting system that introduces outdoor natural light deep into the room, and various studies have been carried out in recognition of its efficiency. In particular, a previous study that combined a PV with a light-shelf was significant in terms of producing energy through the light-shelf. However, the previous study introduced the case in which the integrated PV and light-shelves attached the PV to the reflector of the light-shelf. In this way, the light-shelf and the PV operated at the same angle, which resulted in low daylighting and concentration efficiency. Therefore, the purpose of this study is to propose a movable light-shelf system with a built-in PV which operates at independent angles. The conclusions are as follows. The light-shelf system with a built-in PV proposed in this study consists of a structure where the light-shelf is installed at the bottom with the PV on top. In particular, the upper section has a hole to allow natural light to flow into the light-shelf at the bottom for daylighting. In addition, we enhanced the effectiveness of this study by suggesting control measures to operate the light-shelf system with a built-in PV. However, this study has limitations as it did not evaluate the performance of the light-shelf system with a built-in PV. Therefore, additional studies need to be performed in the future to evaluate and verify the performance.","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"470 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114460913","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}
Pub Date : 2019-06-30DOI: 10.21742/ijcmdi.2019.5.1.01
{"title":"A Study on the Improvement of the Accuracy of Low-Cost Light Scattering Method Particulate Matter Sensors","authors":"","doi":"10.21742/ijcmdi.2019.5.1.01","DOIUrl":"https://doi.org/10.21742/ijcmdi.2019.5.1.01","url":null,"abstract":"","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132195922","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}
Pub Date : 2019-06-30DOI: 10.21742/ijcmdi.2019.5.1.02
{"title":"Simulation Analysis of Escalator Structure and Working Process","authors":"","doi":"10.21742/ijcmdi.2019.5.1.02","DOIUrl":"https://doi.org/10.21742/ijcmdi.2019.5.1.02","url":null,"abstract":"","PeriodicalId":287189,"journal":{"name":"International Journal of Computer-aided Mechanical Design and Implementation","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133047003","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}
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