Pub Date : 2011-07-15DOI: 10.1109/MACE.2011.5987105
Hongzhi Yu, Gegentana, A. Hu
The difference between aspirated and unaspirated consonants in Mongolian is usually interpreted as being strong or weak. It is generally believed that the airflow of unaspirated [p] [t] [k] is stronger than that of aspirated [ph] [th] [kh]. With the help of experimental phonetics methods, the article has got such acoustic parameters as over-glottal pressure and airflow amount of Mongolian stops and affricates. Through the comparative analysis, the article holds that the difference between aspiration and unaspiration in Mongolian consonants lies not only in the different amount and pressure of the airflow in obstruction release, but also the time differences in the very release.
{"title":"An aerodynamic study of aspirated and unaspirated consonants in Mongolian","authors":"Hongzhi Yu, Gegentana, A. Hu","doi":"10.1109/MACE.2011.5987105","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987105","url":null,"abstract":"The difference between aspirated and unaspirated consonants in Mongolian is usually interpreted as being strong or weak. It is generally believed that the airflow of unaspirated [p] [t] [k] is stronger than that of aspirated [ph] [th] [kh]. With the help of experimental phonetics methods, the article has got such acoustic parameters as over-glottal pressure and airflow amount of Mongolian stops and affricates. Through the comparative analysis, the article holds that the difference between aspiration and unaspiration in Mongolian consonants lies not only in the different amount and pressure of the airflow in obstruction release, but also the time differences in the very release.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"35 1","pages":"1015-1018"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85470062","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 : 2011-07-15DOI: 10.1109/MACE.2011.5988597
Xufen Zhu, Han-zhou Song, Ji-xiang Huo
The leakage occurs frequently and relatively centralized in the water-carriage system under the action of the high water head pressure since Tianhuangping Pumped-storage Station operated. The stability of the surrounding bedrock leakage under the long-term action of the high water head pressure receives much concern. This paper studies the water leakage in the branch construction tunnel in the water-carriage system of THP Station by the hydrogen and oxygen isotope analysis method combined with the inorganic hydrochemistry analysis method. The results shows that the value of δ D in the leakage water has obvious zonality and then is grouped in four types. What's more, the concentration of the δ 18O is relatively enriched, mainly produced from the isotopic fractionation caused by the interaction of the calcium hydroxide and soft water in the bulkhead concrete of the branch construction tunnel.
{"title":"Research on hydrogen and oxygen isotope of leakage in branch construction tunnel of Tianhuangping Pumped-storage Station","authors":"Xufen Zhu, Han-zhou Song, Ji-xiang Huo","doi":"10.1109/MACE.2011.5988597","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988597","url":null,"abstract":"The leakage occurs frequently and relatively centralized in the water-carriage system under the action of the high water head pressure since Tianhuangping Pumped-storage Station operated. The stability of the surrounding bedrock leakage under the long-term action of the high water head pressure receives much concern. This paper studies the water leakage in the branch construction tunnel in the water-carriage system of THP Station by the hydrogen and oxygen isotope analysis method combined with the inorganic hydrochemistry analysis method. The results shows that the value of δ D in the leakage water has obvious zonality and then is grouped in four types. What's more, the concentration of the δ 18O is relatively enriched, mainly produced from the isotopic fractionation caused by the interaction of the calcium hydroxide and soft water in the bulkhead concrete of the branch construction tunnel.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"28 1","pages":"6754-6757"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85571265","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 : 2011-07-15DOI: 10.1109/MACE.2011.5987159
F. Cui, Peng Liu
High-speed hydrodynamic and hydrostatic hybrid spindle unit is a new product of spindle in recent years, and it is the most promising high-speed spindle product to be developed with our own intellectual property and brand in the field of high-speed spindle in China. By researching in the current development in high-speed hydrodynamic and hydrostatic hybrid spindle unit and the technology involved, this article explores the shortcomings of the technology of high-speed hydrodynamic and hydrostatic hybrid spindle unit, coming up with the trend of development of high-speed hydrodynamic and hydrostatic hybrid spindle unit.
{"title":"Development and trend of high-speed hydrodynamic and hydrostatic hybrid spindle unit","authors":"F. Cui, Peng Liu","doi":"10.1109/MACE.2011.5987159","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987159","url":null,"abstract":"High-speed hydrodynamic and hydrostatic hybrid spindle unit is a new product of spindle in recent years, and it is the most promising high-speed spindle product to be developed with our own intellectual property and brand in the field of high-speed spindle in China. By researching in the current development in high-speed hydrodynamic and hydrostatic hybrid spindle unit and the technology involved, this article explores the shortcomings of the technology of high-speed hydrodynamic and hydrostatic hybrid spindle unit, coming up with the trend of development of high-speed hydrodynamic and hydrostatic hybrid spindle unit.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"34 1","pages":"1221-1224"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85621927","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 : 2011-07-15DOI: 10.1109/MACE.2011.5987472
Yanping Tu, Changsheng Guan, D. Zhang, Qikun Zhu
The paper establishes reliability evaluation model of random variable parameters with interval changes of ground source heat pump (GSHP) according reliability design method to GSHP based on stochastic analysis of thermal resistance inside borehole, the geotechnical thermal resistance outside borehole of the GSHP. Practical projects show that small deviation of radom variable parameters leads great influence on evaluation results. To take 5% deviation as an example,calculation results show that the max failure probability is 521375 times of the min failure probability. Therfore the advance of backfilled material thermodynamic properties and geotechnical thermodynamic properties outside borehole testing technology have infinite influence on GSHP reliability.
{"title":"Reliability evaluation of ground source heat pump in interval parameters of stochastic model","authors":"Yanping Tu, Changsheng Guan, D. Zhang, Qikun Zhu","doi":"10.1109/MACE.2011.5987472","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987472","url":null,"abstract":"The paper establishes reliability evaluation model of random variable parameters with interval changes of ground source heat pump (GSHP) according reliability design method to GSHP based on stochastic analysis of thermal resistance inside borehole, the geotechnical thermal resistance outside borehole of the GSHP. Practical projects show that small deviation of radom variable parameters leads great influence on evaluation results. To take 5% deviation as an example,calculation results show that the max failure probability is 521375 times of the min failure probability. Therfore the advance of backfilled material thermodynamic properties and geotechnical thermodynamic properties outside borehole testing technology have infinite influence on GSHP reliability.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"14 1","pages":"2426-2428"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85623304","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 : 2011-07-15DOI: 10.1109/MACE.2011.5987692
Tengyue Ba, Jianwu Zhang, X. Guan
In the present research, the prediction-error method is applied for the analysis of vehicle handling performance in conjunction of the dynamic simulation model parameter identification. In corporation with Multi-body system dynamics simulation in ADAMS and the theoretical analysis, the mathematical model is established for the vehicle system. By the Newton-Raphson procedure and the Least Square Method, the identification model can be solved iteratively. Then the mathematical model can be thereafter developed by means of the prediction-error method. It is shown from the transient responses of the vehicle system that the model structure is simplied.
{"title":"Parameter identification of vehicle step steering dynamic system by prediction-error approach","authors":"Tengyue Ba, Jianwu Zhang, X. Guan","doi":"10.1109/MACE.2011.5987692","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987692","url":null,"abstract":"In the present research, the prediction-error method is applied for the analysis of vehicle handling performance in conjunction of the dynamic simulation model parameter identification. In corporation with Multi-body system dynamics simulation in ADAMS and the theoretical analysis, the mathematical model is established for the vehicle system. By the Newton-Raphson procedure and the Least Square Method, the identification model can be solved iteratively. Then the mathematical model can be thereafter developed by means of the prediction-error method. It is shown from the transient responses of the vehicle system that the model structure is simplied.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"19 2 1","pages":"3282-3285"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85677316","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 : 2011-07-15DOI: 10.1109/MACE.2011.5987626
Qianqian Cao, Rongyue Zheng, Yao-Ting Zhu, Yi Huang
According to the field measured data of a deep foundation pit of subway station of Ningbo rail transit, the paper studies the varieties of deformation rate and cumulative deformation along with excavation time, and estimates the proportion of deformation under different construction phases based on 450 monitoring data of 4 deep foundation pits. The result shows that the main deformation of diaphragm wall due to deep foundation pit of subway station in Ningbo soft soil happens in the third and the forth phases, and these two conditions should be the key point of hierarchical control.
{"title":"Deformation properties of diaphragm wall due to deep foundation pit of subway station in Ningbo soft soil","authors":"Qianqian Cao, Rongyue Zheng, Yao-Ting Zhu, Yi Huang","doi":"10.1109/MACE.2011.5987626","DOIUrl":"https://doi.org/10.1109/MACE.2011.5987626","url":null,"abstract":"According to the field measured data of a deep foundation pit of subway station of Ningbo rail transit, the paper studies the varieties of deformation rate and cumulative deformation along with excavation time, and estimates the proportion of deformation under different construction phases based on 450 monitoring data of 4 deep foundation pits. The result shows that the main deformation of diaphragm wall due to deep foundation pit of subway station in Ningbo soft soil happens in the third and the forth phases, and these two conditions should be the key point of hierarchical control.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"362 1","pages":"3025-3027"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85851775","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 : 2011-07-15DOI: 10.1109/MACE.2011.5986913
Peng Wenyi, Cai Fenmin, Yie GuangBin, H. Tian, Yang Xiang-jie
Pinhole is one of the major defects of copper foils, which affects both of the mechanical performances and the physical properties greatly. It was deduced that the pinholes were formed because the lead anode dissolved in CuSO4-H2SO4 electrolyte. In this paper, the copper foil samples were electrodeposited on a titanium cathode and a lead anode in CuSO4-H2SO4 electrolyte system with different additions of the suspended state lead sulfate (PbSO4) and hydroxyethyl cellulose (HEC), in which the other electro-deposition parameters were according with the manufacture line. The results show that PbSO4 in electrolyte is the reason leading to pinhole formation on copper foils. The addition of HEC in the electrolyte can prevent the formation of pinhole and promote fine crystallization, accordingly it improves the mechanical properties of copper foil.
{"title":"Experimental analysis of pinhole on electrolytic copper foil and its prevention","authors":"Peng Wenyi, Cai Fenmin, Yie GuangBin, H. Tian, Yang Xiang-jie","doi":"10.1109/MACE.2011.5986913","DOIUrl":"https://doi.org/10.1109/MACE.2011.5986913","url":null,"abstract":"Pinhole is one of the major defects of copper foils, which affects both of the mechanical performances and the physical properties greatly. It was deduced that the pinholes were formed because the lead anode dissolved in CuSO4-H2SO4 electrolyte. In this paper, the copper foil samples were electrodeposited on a titanium cathode and a lead anode in CuSO4-H2SO4 electrolyte system with different additions of the suspended state lead sulfate (PbSO4) and hydroxyethyl cellulose (HEC), in which the other electro-deposition parameters were according with the manufacture line. The results show that PbSO4 in electrolyte is the reason leading to pinhole formation on copper foils. The addition of HEC in the electrolyte can prevent the formation of pinhole and promote fine crystallization, accordingly it improves the mechanical properties of copper foil.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"08 1","pages":"279-282"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85857066","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 : 2011-07-15DOI: 10.1109/MACE.2011.5988658
Bo Li, Jian Xie
In the course of the deepening urbanization, the construction of new architectures and the demolition of old buildings will both produce a very great amount of construction waste, which will result in severe environmental pollution and waste of resources. Therefore, the recycling of the construction waste especially the waste concrete will bring about outstanding environmental and economical benefits, which will also be an important method of maintaining a sustainable development of construction, resources and environment. This paper briefly introduces the basic properties of recycled concrete and its engineering application at home and abroad. Also discusses the application prospect of composite structure and recycled concrete board. It points some directions for the use of recycled concrete.
{"title":"The engineering application and development direction of Recycled Concrete","authors":"Bo Li, Jian Xie","doi":"10.1109/MACE.2011.5988658","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988658","url":null,"abstract":"In the course of the deepening urbanization, the construction of new architectures and the demolition of old buildings will both produce a very great amount of construction waste, which will result in severe environmental pollution and waste of resources. Therefore, the recycling of the construction waste especially the waste concrete will bring about outstanding environmental and economical benefits, which will also be an important method of maintaining a sustainable development of construction, resources and environment. This paper briefly introduces the basic properties of recycled concrete and its engineering application at home and abroad. Also discusses the application prospect of composite structure and recycled concrete board. It points some directions for the use of recycled concrete.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"112 1","pages":"6992-6995"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85870179","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 : 2011-07-15DOI: 10.1109/MACE.2011.5988416
Xianwen Yu, Hong-yin Xue
An algorithm to refine the information with equality constraints, based on the theories of parameter adjustment with conditions and generalized adjustment, is proposed in this paper. With our algorithm, for given vector estimation, covariance matrix and the corresponding equality constraints, more accurate estimation and covariance matrix of the vectors can be obtained after simple matrix operation. As shown in the numerical calculation, our algorithm is simple and easy to perform and the results are reliable.
{"title":"Research on refining algorithm of information with equality constraints","authors":"Xianwen Yu, Hong-yin Xue","doi":"10.1109/MACE.2011.5988416","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988416","url":null,"abstract":"An algorithm to refine the information with equality constraints, based on the theories of parameter adjustment with conditions and generalized adjustment, is proposed in this paper. With our algorithm, for given vector estimation, covariance matrix and the corresponding equality constraints, more accurate estimation and covariance matrix of the vectors can be obtained after simple matrix operation. As shown in the numerical calculation, our algorithm is simple and easy to perform and the results are reliable.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"14 1","pages":"6049-6051"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85941106","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 : 2011-07-15DOI: 10.1109/MACE.2011.5988286
J. Ruan, Xueliang Zhou
Positional 5-axis machining is widely applied in high-speed machining the surfaces of automobile panel dies. Its key factor is to set up an appropriate tool orientation. The relationship between tool orientation and tool-axial inclination was analyzed, and the optimization method based on planar fitting was proposed. It consists of three steps: Firstly, the machining surfaces are scattered to points and fitted a plane, and the tool-axis is tilted a angle α that is recommended as the initial tool-axial inclination, in the plane which is defined by the feed direction and the normal direction of the fitted plane; Secondly, the heel angle of each point on machining surfaces are calculated, and the numeral scales of machining points whose inclinations are in a certain range to all are also counted; Finally, it is drawn that if the tool-axial orientation is optimal based on the counted result, otherwise, it is needed to reselect a new or to re-divide the machining areas until a satisfactory result is gotten. In addition, a software tool was developed to optimize tool orientation for positional 5-axis machining, and an application case was introduced to prove the validity of the method.
{"title":"An optimizing tool orientation method for positional 5-axis machining","authors":"J. Ruan, Xueliang Zhou","doi":"10.1109/MACE.2011.5988286","DOIUrl":"https://doi.org/10.1109/MACE.2011.5988286","url":null,"abstract":"Positional 5-axis machining is widely applied in high-speed machining the surfaces of automobile panel dies. Its key factor is to set up an appropriate tool orientation. The relationship between tool orientation and tool-axial inclination was analyzed, and the optimization method based on planar fitting was proposed. It consists of three steps: Firstly, the machining surfaces are scattered to points and fitted a plane, and the tool-axis is tilted a angle α that is recommended as the initial tool-axial inclination, in the plane which is defined by the feed direction and the normal direction of the fitted plane; Secondly, the heel angle of each point on machining surfaces are calculated, and the numeral scales of machining points whose inclinations are in a certain range to all are also counted; Finally, it is drawn that if the tool-axial orientation is optimal based on the counted result, otherwise, it is needed to reselect a new or to re-divide the machining areas until a satisfactory result is gotten. In addition, a software tool was developed to optimize tool orientation for positional 5-axis machining, and an application case was introduced to prove the validity of the method.","PeriodicalId":6400,"journal":{"name":"2011 Second International Conference on Mechanic Automation and Control Engineering","volume":"16 1","pages":"5561-5564"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85998334","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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