Based on Takagi-Sugeno (T-S) fuzzy observer, present a new type fault diagnosis method for induction motor stator. The residuals using observer estimation output error generated, constitute effective criterion for fault diagnosis. At first, use the Lyapunov stability theory analysis the observer's stabilities, then set the observer pole configuration in the S plane of the designated area, The simulation results show that the method has stronger performance of fault diagnosis, and have good identification performance in full speed range.
{"title":"A Novel Method of Induction Motor Stator Fault Diagnosis","authors":"Hou Hai-liang, Yang Tong-guang","doi":"10.1109/ICDMA.2013.16","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.16","url":null,"abstract":"Based on Takagi-Sugeno (T-S) fuzzy observer, present a new type fault diagnosis method for induction motor stator. The residuals using observer estimation output error generated, constitute effective criterion for fault diagnosis. At first, use the Lyapunov stability theory analysis the observer's stabilities, then set the observer pole configuration in the S plane of the designated area, The simulation results show that the method has stronger performance of fault diagnosis, and have good identification performance in full speed range.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"30 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":"133484225","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}
Finite element model of diesel engine shafting and motor shafting were established. With finite element calculation, the first 5 order modal frequency and vibration shape of diesel engine shafting and motor shafting were obtained. Based on diesel engine shafting model and motor shafting model, hybrid power system shafting finite element model was established, and the first 10 order modal frequency and vibration shape were obtained. Calculation results show that every modal frequency of hybrid power system shafting is declined compared with ordinary power system. Reason for the decline is motor shafting modal frequency is significantly less than diesel engine shafting. The 1 order vibration shape of hybrid power system shafting is torsion vibration. Hybrid power system shafting vibration experiment table was established and shafting vibration testing were carried out. Torsion vibration experiment results show that f0 and 2f0 are two peak frequency of shafting torsion vibration frequency spectrum, shafting peak frequency is less than shafting 1 order modal frequency 212 Hz and shafting torsion resonance can be avoided. Bending vibration experiment results show that bending vibration energy is focuses in x direction and y direction. Hybrid power system axial vibration can be ignored.
{"title":"Hybrid Power System Shafting Vibration Characteristic","authors":"Huang Zhonghua, Xie Ya, Den Yi","doi":"10.1109/ICDMA.2013.157","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.157","url":null,"abstract":"Finite element model of diesel engine shafting and motor shafting were established. With finite element calculation, the first 5 order modal frequency and vibration shape of diesel engine shafting and motor shafting were obtained. Based on diesel engine shafting model and motor shafting model, hybrid power system shafting finite element model was established, and the first 10 order modal frequency and vibration shape were obtained. Calculation results show that every modal frequency of hybrid power system shafting is declined compared with ordinary power system. Reason for the decline is motor shafting modal frequency is significantly less than diesel engine shafting. The 1 order vibration shape of hybrid power system shafting is torsion vibration. Hybrid power system shafting vibration experiment table was established and shafting vibration testing were carried out. Torsion vibration experiment results show that f0 and 2f0 are two peak frequency of shafting torsion vibration frequency spectrum, shafting peak frequency is less than shafting 1 order modal frequency 212 Hz and shafting torsion resonance can be avoided. Bending vibration experiment results show that bending vibration energy is focuses in x direction and y direction. Hybrid power system axial vibration can be ignored.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"13 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":"133708222","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}
Hu Zhong-lu, Li Yue-lin, Dong Shi-tao, Zhang Dong-yu
The rapid prototyping development technology for the transient throttle controller based on the Motohawk development platform was introduced. The mathematical model was set up for the transient throttle controller. Based on it, a PID control algorithm was proposed and verified in MATLAB/SIMULINK. A rapid prototyping development platform was built up using MotoTron technology. The precise control was realized by the calibration test based on strategy transplant and download. The transient conditions established was produced in the end.
{"title":"The Development of Transient Throttle Controller Based on MotoTron Development Platform","authors":"Hu Zhong-lu, Li Yue-lin, Dong Shi-tao, Zhang Dong-yu","doi":"10.1109/ICDMA.2013.348","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.348","url":null,"abstract":"The rapid prototyping development technology for the transient throttle controller based on the Motohawk development platform was introduced. The mathematical model was set up for the transient throttle controller. Based on it, a PID control algorithm was proposed and verified in MATLAB/SIMULINK. A rapid prototyping development platform was built up using MotoTron technology. The precise control was realized by the calibration test based on strategy transplant and download. The transient conditions established was produced in the end.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"24 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":"131809168","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}
Power management technology is a fundamental issue in environmental vibration monitoring. In this paper, we propose a power management scheme using a MEMS inertial switch to minimize power consumption and maximize lifetime of environmental vibration monitoring system. The MEMS inertial switch integrates detecting and controlling systems with no power consumption. A prototype with unidirectional sensitivity is designed and fabricated based on bulk micromachining technology. The switch die (5.8×5.8×0.55mm3) is packaged and tested. As an 80g half-sine-wave acceleration was applied, the response time and contact time are about 0.37ms and 49ms, respectively. The contact resistance is no more than 6& Omega;. These indicate the switch has the advantages of miniature, high sensitivity and good contact effect which are suitable for the applications in power management of environmental vibration monitoring.
{"title":"MEMS Inertial Switch for Power Management of Environmental Vibration Monitoring","authors":"J. Fu, Dongling Li, Guoyin Wang, Di Wu","doi":"10.1109/ICDMA.2013.185","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.185","url":null,"abstract":"Power management technology is a fundamental issue in environmental vibration monitoring. In this paper, we propose a power management scheme using a MEMS inertial switch to minimize power consumption and maximize lifetime of environmental vibration monitoring system. The MEMS inertial switch integrates detecting and controlling systems with no power consumption. A prototype with unidirectional sensitivity is designed and fabricated based on bulk micromachining technology. The switch die (5.8×5.8×0.55mm3) is packaged and tested. As an 80g half-sine-wave acceleration was applied, the response time and contact time are about 0.37ms and 49ms, respectively. The contact resistance is no more than 6& Omega;. These indicate the switch has the advantages of miniature, high sensitivity and good contact effect which are suitable for the applications in power management of environmental vibration monitoring.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"155 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":"134452828","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}
Wu Chenxi, Ning Liwei, Jiang Rong, Wu Xing, Liu Junan
An approach is proposed for fault diagnosis of rolling element bearings using time domain features as inputs to the artificial neural network (ANN). The time domain features are extracted from the segments of the experimental dataset for known machine conditions. The dataset has been subjected to somewhat preprocessing previous to feature extraction. The ANN consists of five input nodes, one hidden layer with five nodes and four output nodes. Each of five input nodes represents root mean square, variance, skewness, kurtosis and normalized sixth central moment of the time domain vibration signals, respectively. Four binary nodes in the output layer specify the bearing condition: normal, outer race defect, inner race defect or ball defect. The ANN is trained using back propagation algorithm with a subset of the time domain features. The ANN is tested using the remaining set of the time domain features. Training and test success are used to evaluate efficiency of the presented method. The results indicate the effectiveness of the time domain features in diagnosis of bearing failures with high accuracy and low computation.
{"title":"Intelligent Identification of Bearing Faults Using Time Domain Features","authors":"Wu Chenxi, Ning Liwei, Jiang Rong, Wu Xing, Liu Junan","doi":"10.1109/ICDMA.2013.169","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.169","url":null,"abstract":"An approach is proposed for fault diagnosis of rolling element bearings using time domain features as inputs to the artificial neural network (ANN). The time domain features are extracted from the segments of the experimental dataset for known machine conditions. The dataset has been subjected to somewhat preprocessing previous to feature extraction. The ANN consists of five input nodes, one hidden layer with five nodes and four output nodes. Each of five input nodes represents root mean square, variance, skewness, kurtosis and normalized sixth central moment of the time domain vibration signals, respectively. Four binary nodes in the output layer specify the bearing condition: normal, outer race defect, inner race defect or ball defect. The ANN is trained using back propagation algorithm with a subset of the time domain features. The ANN is tested using the remaining set of the time domain features. Training and test success are used to evaluate efficiency of the presented method. The results indicate the effectiveness of the time domain features in diagnosis of bearing failures with high accuracy and low computation.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"13 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":"134487518","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}
Currently, most of the file encryption systems are implemented in software for the foundation. Once the key was cracked, the encryption system fails completely. With hacking techniques becoming more sophisticated, traditional software encryption alone cannot guarantee the security of sensitive data. This paper introduces a trust storage system based on a security hardware, which implements the disk encryption based on partition, utilizing the device mapper mechanism. Meanwhile, a secure hardware, Trusted Cryptography Module (TCM) [1], provides security support from the hardware layer, greatly increasing the crack difficulty. As a result, effectively enhance the security of sensitive data.
{"title":"Design and Implementation of Trust Storage System Based on TCM","authors":"","doi":"10.1109/ICDMA.2013.101","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.101","url":null,"abstract":"Currently, most of the file encryption systems are implemented in software for the foundation. Once the key was cracked, the encryption system fails completely. With hacking techniques becoming more sophisticated, traditional software encryption alone cannot guarantee the security of sensitive data. This paper introduces a trust storage system based on a security hardware, which implements the disk encryption based on partition, utilizing the device mapper mechanism. Meanwhile, a secure hardware, Trusted Cryptography Module (TCM) [1], provides security support from the hardware layer, greatly increasing the crack difficulty. As a result, effectively enhance the security of sensitive data.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"16 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":"125118554","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 this paper, we study the optimization problem with stochastic interest rates faced by an insurance firm who can control its cash-balance dynamics by adjusting the underlying premium rates. Our objective is to minimize the total deviation of the cash-balance process in an insurance firm to some pre-set target levels by selecting an appropriate premium policy.
{"title":"An Application of Stochastic Control Theory in Premium Policy of an Insurance Firm","authors":"Xiangbo Meng","doi":"10.1109/ICDMA.2013.33","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.33","url":null,"abstract":"In this paper, we study the optimization problem with stochastic interest rates faced by an insurance firm who can control its cash-balance dynamics by adjusting the underlying premium rates. Our objective is to minimize the total deviation of the cash-balance process in an insurance firm to some pre-set target levels by selecting an appropriate premium policy.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"9 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":"134502122","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 trusted computing technology are developing gradually, and was applied in the network. So the trusted network is been proposed and researched, and method of remote attestation is the key technique in the study. According to current situation of study, outline several system of the trusted network nowadays, and analyzed the basic ideas and implementations of several typical remote attestation methods, compared and analyzed their advantages and disadvantages. At the same time pointed out the applicable occasions of several remote attestation methods, putted forward some insufficient for these remote attestation methods, and pointed out the direction for the future of remote attestation.
{"title":"Analysis and Research of Remote Attestation Based on Trusted Computing","authors":"Jiaming Guo, Jiang Wei","doi":"10.1109/ICDMA.2013.45","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.45","url":null,"abstract":"The trusted computing technology are developing gradually, and was applied in the network. So the trusted network is been proposed and researched, and method of remote attestation is the key technique in the study. According to current situation of study, outline several system of the trusted network nowadays, and analyzed the basic ideas and implementations of several typical remote attestation methods, compared and analyzed their advantages and disadvantages. At the same time pointed out the applicable occasions of several remote attestation methods, putted forward some insufficient for these remote attestation methods, and pointed out the direction for the future of remote attestation.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":" 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132187508","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}
Qian Yang, Jiantao Wang, Xiao-peng Yan, Shaokun Liu
Based on the parallel-plate bounded-wave simulator design principle, this paper give a kind of small parallel-plate bounded-wave simulator model with typical structure, and do some simulation on its inner space electric-field distribution. Firstly, a small parallel-plate bounded-wave simulator with typical structure is designed. By using the double exponential pulse source as the drive signal and the electromagnetic simulation software, the inner space electric-field distribution of the simulator was analyzed. The simulation result shows that this designed simulator can be used to simulate the ideal single plane wave environment effectively, and has certain instructional significance to kinds of electromagnetic effect experiments.
{"title":"Design of a Small Parallel-Plate Bounded-Wave Simulator","authors":"Qian Yang, Jiantao Wang, Xiao-peng Yan, Shaokun Liu","doi":"10.1109/ICDMA.2013.106","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.106","url":null,"abstract":"Based on the parallel-plate bounded-wave simulator design principle, this paper give a kind of small parallel-plate bounded-wave simulator model with typical structure, and do some simulation on its inner space electric-field distribution. Firstly, a small parallel-plate bounded-wave simulator with typical structure is designed. By using the double exponential pulse source as the drive signal and the electromagnetic simulation software, the inner space electric-field distribution of the simulator was analyzed. The simulation result shows that this designed simulator can be used to simulate the ideal single plane wave environment effectively, and has certain instructional significance to kinds of electromagnetic effect experiments.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"10 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":"132245253","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}
Under environment of Visual Studio 2010, the network teaching platform of college physical experiment course suiting for credit system is designed and built with ASP.NET language(C# language is used at backstage), which can offer college physical experimental course a brand-new and fully open teaching mode. Via online course selection system, students can choose experimental content, appoint experimental time and select teacher independently. The network teaching platform constructs an open learning environment for students which make the college physical experimental teaching expended both in time and space. With influence and radiation effect of teaching system of the network teaching platform, the college physical experimental course can get shared teaching resources that teachers can reference for teaching, and the students can also get a self-learning environment.
在Visual Studio 2010环境下，利用ASP设计并构建了适合学分制的大学物理实验课程网络教学平台。NET语言(后台使用c#语言)，为大学物理实验课程提供了一种全新的、完全开放的教学模式。通过在线选课系统，学生可以自主选择实验内容、指定实验时间和选择教师。网络教学平台为学生构建了一个开放的学习环境，使大学物理实验教学在时间和空间上进行了拓展。在网络教学平台教学系统的影响和辐射作用下，大学物理实验课程可以获得可供教师教学参考的共享教学资源，也可以获得学生自主学习的环境。
{"title":"Network Teaching Platform of College Physical Experiment Course Suiting for Credit System","authors":"Y. Lihua, Zhao Wei, Tian Yong, Liao Hong","doi":"10.1109/ICDMA.2013.194","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.194","url":null,"abstract":"Under environment of Visual Studio 2010, the network teaching platform of college physical experiment course suiting for credit system is designed and built with ASP.NET language(C# language is used at backstage), which can offer college physical experimental course a brand-new and fully open teaching mode. Via online course selection system, students can choose experimental content, appoint experimental time and select teacher independently. The network teaching platform constructs an open learning environment for students which make the college physical experimental teaching expended both in time and space. With influence and radiation effect of teaching system of the network teaching platform, the college physical experimental course can get shared teaching resources that teachers can reference for teaching, and the students can also get a self-learning environment.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"16 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":"115010135","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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