A general mathematical model for generating tooth surfaces of helical noncircular gears is established. Two basic parameters and a first order differential equation characterize this model. The condition for determining the cusp of tooth surfaces is also presented. Transverse pressure angle and normal length are introduced to deal with the model. The different tooth surfaces could be generated logically and systematically by using this model and defining transverse pressure angle as a function of the two parameters. It is believed that the model may provide a simple logical method for the design of helical noncircular gears.
{"title":"Generation and Undercut of Tooth Surfaces of Helical Noncircular Gears","authors":"Lin Jing, Li Ru-qiong, Wei Jiazeng","doi":"10.1109/ICDMA.2013.149","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.149","url":null,"abstract":"A general mathematical model for generating tooth surfaces of helical noncircular gears is established. Two basic parameters and a first order differential equation characterize this model. The condition for determining the cusp of tooth surfaces is also presented. Transverse pressure angle and normal length are introduced to deal with the model. The different tooth surfaces could be generated logically and systematically by using this model and defining transverse pressure angle as a function of the two parameters. It is believed that the model may provide a simple logical method for the design of helical noncircular gears.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128316798","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}
The finite element analysis on single plate steel frame on the different seismic waves, earthquake acceleration are conducted. The results showed that the vertex displacement and base shear increase with the earthquake acceleration increasing on the same seismic wave, hysteretic behavior of Steel frame is very good. Steel frame has a good seismic property.
{"title":"Analysis on Seismic Property of Steel Frame","authors":"Xu Song-zhi, Liu Jiacheng, Peng Tao","doi":"10.1109/ICDMA.2013.55","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.55","url":null,"abstract":"The finite element analysis on single plate steel frame on the different seismic waves, earthquake acceleration are conducted. The results showed that the vertex displacement and base shear increase with the earthquake acceleration increasing on the same seismic wave, hysteretic behavior of Steel frame is very good. Steel frame has a good seismic property.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128729982","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}
The article first proposes the criteria of the severity of the incident in the standard and plan is only for delimiting the severe grades of the incident itself, is not suitable for judging the impact of incident on the road traffic in the first scene. To this end this article first proposes the concept of traffic control level. Number of lanes occupied, lane closure time and saturation are as the three indicators to determine the incident's impact on traffic. The three-lane expressway as the research object simulated one and two-lane occupied when incident occurred by VISSIM simulation software. Obtained the maximum queue length at different saturation and event duration, and theoretically calculated queue dissipation time. Traffic control level was classified at the section where incident occurred, and corresponding control measures were put forward for each level.
{"title":"Traffic Control Classification Standard of Expressway Incident Section","authors":"Sun Mingling, Liu Huixue, Zhao Jiandong","doi":"10.1109/ICDMA.2013.389","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.389","url":null,"abstract":"The article first proposes the criteria of the severity of the incident in the standard and plan is only for delimiting the severe grades of the incident itself, is not suitable for judging the impact of incident on the road traffic in the first scene. To this end this article first proposes the concept of traffic control level. Number of lanes occupied, lane closure time and saturation are as the three indicators to determine the incident's impact on traffic. The three-lane expressway as the research object simulated one and two-lane occupied when incident occurred by VISSIM simulation software. Obtained the maximum queue length at different saturation and event duration, and theoretically calculated queue dissipation time. Traffic control level was classified at the section where incident occurred, and corresponding control measures were put forward for each level.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128791547","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}
In Sichuan concentrated contiguous poor areas, thequantity and overall quality of transportation industryprofessionals have a huge gap to modern requirements oftransportation construction & management and to the overallgoal of transportation construction demand. This articlesurveys the basic structure of the transportation personnel, analysis the main problems of traffic personnel teams andpersonnel needs, proposed contiguous poor areas centralizedcontiguous poor areas in Sichuan traffic Talent Localizationculture approach to alleviate traffic personnel shortageseffective measure in Sichuan centralized contiguous poor areas.
{"title":"The Research of the Sichuan Concentrated Poverty Area Traffic Localization of Talents Cultivation","authors":"Yong Luo, Xiuchun Guo","doi":"10.1109/ICDMA.2013.363","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.363","url":null,"abstract":"In Sichuan concentrated contiguous poor areas, thequantity and overall quality of transportation industryprofessionals have a huge gap to modern requirements oftransportation construction & management and to the overallgoal of transportation construction demand. This articlesurveys the basic structure of the transportation personnel, analysis the main problems of traffic personnel teams andpersonnel needs, proposed contiguous poor areas centralizedcontiguous poor areas in Sichuan traffic Talent Localizationculture approach to alleviate traffic personnel shortageseffective measure in Sichuan centralized contiguous poor areas.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130559488","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}
The maximum power of the internal combustion engine of traditional vehicles was designed to meet the requirements of running at the limit load. When then design was determined, the car's displacement could no longer be adjusted. However, the limit load was not often. That's means the internal combustion engine's maximum power had a great surplus. Therefore, at most of its time, the internal combustion engine was forced to work in low-speed, low-load condition, which was very detrimental to energy conservation. In this paper, a new type of internal combustion engine was designed innovatively based on its traditional structure. This new type of internal combustion engine could timely adjust its displacement according to its actual load, which fundamentally eliminated its performance defects of high fuel consumption and serious pollution in the low-load condition.
{"title":"Research of Internal-Combustion Engine with Timely Adjustable Displacement","authors":"Yingjian Deng, Z. Liu","doi":"10.1109/ICDMA.2013.238","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.238","url":null,"abstract":"The maximum power of the internal combustion engine of traditional vehicles was designed to meet the requirements of running at the limit load. When then design was determined, the car's displacement could no longer be adjusted. However, the limit load was not often. That's means the internal combustion engine's maximum power had a great surplus. Therefore, at most of its time, the internal combustion engine was forced to work in low-speed, low-load condition, which was very detrimental to energy conservation. In this paper, a new type of internal combustion engine was designed innovatively based on its traditional structure. This new type of internal combustion engine could timely adjust its displacement according to its actual load, which fundamentally eliminated its performance defects of high fuel consumption and serious pollution in the low-load condition.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129292386","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}
Yang Mao-qing, Yang Lin, Luo Hua-song, Xiong Li-ran, Jian Mei-ying
The reason for issue in the management of crossborder river Water Resources, which In the final analysis is distribution of benefits and costs in the management of the Water Resources. When the distribution of benefits and costsharing is not balanced, The various basins countries will adopt a different strategy starting from their own interests, then water resource management cooperation will not be able to carry out. We took Nu River - salWenjiang for an example, and analyzed distribution of economic benefits and environmental cost allocation, then pointed out that the constraints of water resources management cooperation, finally built a cooperative game model.
{"title":"Cooperation Game in the Management of Cross-Border river Water Resources* -- Nu River -- Sal Wenjiang as an Example","authors":"Yang Mao-qing, Yang Lin, Luo Hua-song, Xiong Li-ran, Jian Mei-ying","doi":"10.1109/ICDMA.2013.88","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.88","url":null,"abstract":"The reason for issue in the management of crossborder river Water Resources, which In the final analysis is distribution of benefits and costs in the management of the Water Resources. When the distribution of benefits and costsharing is not balanced, The various basins countries will adopt a different strategy starting from their own interests, then water resource management cooperation will not be able to carry out. We took Nu River - salWenjiang for an example, and analyzed distribution of economic benefits and environmental cost allocation, then pointed out that the constraints of water resources management cooperation, finally built a cooperative game model.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130667217","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}
Testing on the the AJR-type gasoline Santana 2000 sedan, processed and analyzed experimental data obtained from two acceleration transient operating conditions that one is increasing speed and constant torque, another is constant speed and increase the torque. Compared with the corresponding steady-state conditions, summed up the burning regulation of the gasoline engine at the transient operating conditions: The mean indicated pressure and the maximum combustion pressure is greater than the corresponding steadystate conditions under the two acceleration transient operating conditions. The mean indicated pressure and maximum combustion pressure fluctuations with increasing engine speed, under the increasing speed and constant torque condition, decreased after increasing, its maximum value was in the intermediate stage of the acceleration process. Increased torque and constant speed conditions the mean indicated pressure and the maximum combustion pressure increases gradually with increasing torque constant speed, its maximum at the maximum torque.
{"title":"Experimental Study of Combustion Regular Gasoline Engine Acceleration Transient Conditions","authors":"Zhong-lu Hu, Yue-lin Li, Jiang-tao He, Dong-Yu Zhang","doi":"10.1109/ICDMA.2013.137","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.137","url":null,"abstract":"Testing on the the AJR-type gasoline Santana 2000 sedan, processed and analyzed experimental data obtained from two acceleration transient operating conditions that one is increasing speed and constant torque, another is constant speed and increase the torque. Compared with the corresponding steady-state conditions, summed up the burning regulation of the gasoline engine at the transient operating conditions: The mean indicated pressure and the maximum combustion pressure is greater than the corresponding steadystate conditions under the two acceleration transient operating conditions. The mean indicated pressure and maximum combustion pressure fluctuations with increasing engine speed, under the increasing speed and constant torque condition, decreased after increasing, its maximum value was in the intermediate stage of the acceleration process. Increased torque and constant speed conditions the mean indicated pressure and the maximum combustion pressure increases gradually with increasing torque constant speed, its maximum at the maximum torque.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124169960","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}
The paper introduces the design ways of Amplified-filter Circuit in receive loop about RFID reader, three amplifier is present. The main parameter of the circuit is calculated, at the same time, the software simulation of the circuit is provided. Practice has proved that this Amplified-filter Circuit has good stability, reliability and extensive.
{"title":"Research and Design of an Amplified-Filter Circuit Based on UHF Reader","authors":"Tan Zhouwen, Su Juan","doi":"10.1109/ICDMA.2013.235","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.235","url":null,"abstract":"The paper introduces the design ways of Amplified-filter Circuit in receive loop about RFID reader, three amplifier is present. The main parameter of the circuit is calculated, at the same time, the software simulation of the circuit is provided. Practice has proved that this Amplified-filter Circuit has good stability, reliability and extensive.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114513750","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}
This research study on evaluation ways and connotation of supporting ability of regional cultivated land based on integrated food security. After comprehensive analysis, this research established evaluation method for supporting ability of grain production of regional cultivated land and bound risk of regional cultivated land resources. Taking Huayuan County as an Example, this research forecasted county's supporting ability of grain production of cultivated land and bound risk of cultivated land resources in 2020, based on grain production datas. The conclusion comes as follows: Supply ability of grain production of regional cultivated land of Huayuan County in 2020 is 97%.
{"title":"Study on Supporting Ability of Cultivated Land Based on Integrated Food Security in Huayuan County","authors":"Ren Guoping","doi":"10.1109/ICDMA.2013.310","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.310","url":null,"abstract":"This research study on evaluation ways and connotation of supporting ability of regional cultivated land based on integrated food security. After comprehensive analysis, this research established evaluation method for supporting ability of grain production of regional cultivated land and bound risk of regional cultivated land resources. Taking Huayuan County as an Example, this research forecasted county's supporting ability of grain production of cultivated land and bound risk of cultivated land resources in 2020, based on grain production datas. The conclusion comes as follows: Supply ability of grain production of regional cultivated land of Huayuan County in 2020 is 97%.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121620762","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}
The effects of uncertainty due to the variability of soil properties, pore pressure, and earthquake forces on the stability of a deposit slope in the hydropower reservoir are investigated. The spatial variability of soil properties is incorporated in the probabilistic slope stability analysis by a random field model, and a sensitivity analysis is conducted considering spatial variability of soil properties. Cutting the slope can reduce the risk of slope failure, which has been corroborated by the probabilistic slope stability analysis. The sensitivity analysis shows that additional measures such as drainage and toe protection can help stabilize the slope before reservoir filling.
{"title":"Probabilistic Slope Stability Analysis: The Case Study of a Deposit Slope in Hydropower Reservoir","authors":"Y. Fei, L. Yucheng","doi":"10.1109/ICDMA.2013.222","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.222","url":null,"abstract":"The effects of uncertainty due to the variability of soil properties, pore pressure, and earthquake forces on the stability of a deposit slope in the hydropower reservoir are investigated. The spatial variability of soil properties is incorporated in the probabilistic slope stability analysis by a random field model, and a sensitivity analysis is conducted considering spatial variability of soil properties. Cutting the slope can reduce the risk of slope failure, which has been corroborated by the probabilistic slope stability analysis. The sensitivity analysis shows that additional measures such as drainage and toe protection can help stabilize the slope before reservoir filling.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126287686","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：