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2009 International Conference on Computer Modeling and Simulation最新文献

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Relative Motion Decoupled Control for Spacecraft Formation with Coupled Translational and Rotational Dynamics 平移与旋转耦合的航天器编队相对运动解耦控制
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.12
Yunhua Wu, Xibin Cao, Y. Xing, Pengfei Zheng, Shijie Zhang
{"title":"Relative Motion Decoupled Control for Spacecraft Formation with Coupled Translational and Rotational Dynamics","authors":"Yunhua Wu, Xibin Cao, Y. Xing, Pengfei Zheng, Shijie Zhang","doi":"10.1109/ICCMS.2009.12","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.12","url":null,"abstract":"The formation relative motion control by using one body fixed thruster and reaction wheels is a challenging problem due to the coupled translational and rotational dynamics. As the thruster vector depends on the current attitude and its angular velocity, and some of the attitude constraints also couple the position and attitude of the spacecraft, it makes the formation control problem high dimensional. This paper develops two decoupling conditions, including thrust vector maneuverability condition and included angle condition between the thruster and the star camera boresight, and then presents two methods to calculate the target attitude quaternion. Both of the two methods need first design the optimal trajectory of the thrust vector, and then use geometric and nonlinear programming methods to calculate the attitude trajectory. The validity of the proposed approach is demonstrated in a typical application of a dualspacecraft formation initialization.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126204431","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}
引用次数: 3
Semi-physical Simulation Research of the Antenna Acquiring and Tracking System without Turn Tables 无转台天线采集与跟踪系统半物理仿真研究
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.48
Zhai Kun, Baoyin Hexi, Qu Xi
{"title":"Semi-physical Simulation Research of the Antenna Acquiring and Tracking System without Turn Tables","authors":"Zhai Kun, Baoyin Hexi, Qu Xi","doi":"10.1109/ICCMS.2009.48","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.48","url":null,"abstract":"Simulation is an important step during the design of control systems. Based on the series tools of MATLABSimulinkxPC, the real-time simulation environment is constructed. By adopting the mixed modeling measures that comprise Simulink, Stateflow and S-function, models for satellite attitude dynamics, all sensors and actuators, control logics of the antenna and etc are all built successfully, then the modes selecting, scheduling and interfaces communication are realized effectively. The tracking and data relay satellite (TDRS) simulator is designed. It simplifies the experiment system. The turn table is eliminated and the experiment system can also reflect the effect of the attitude movement acting on the antenna pointing by using the TDRS simulator. The experiment results indicate that the experiment system can verify the antenna acquiring and tracking processes and is beneficial to the design of the user satellite’s antenna pointing control system for engineers.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130910132","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}
引用次数: 2
Asymptotic Behavior of Global Solutions for a System of Petrovsky 一类Petrovsky系统全局解的渐近行为
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.78
Y. Ye, W. Zhu, Xiaoyan Zhou
{"title":"Asymptotic Behavior of Global Solutions for a System of Petrovsky","authors":"Y. Ye, W. Zhu, Xiaoyan Zhou","doi":"10.1109/ICCMS.2009.78","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.78","url":null,"abstract":"In this paper we study the asymptotic behavior of global solutions to the initial boundary value problem for semilinear Petrovsky equation with nonlinear damping and source terms by using a difference inequality.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123911183","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}
引用次数: 0
A Double Layers Detection for DoS Based on the Danger Theory 基于危险理论的DoS双层检测
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.63
Junmin Zhang, Yiwen Liang
{"title":"A Double Layers Detection for DoS Based on the Danger Theory","authors":"Junmin Zhang, Yiwen Liang","doi":"10.1109/ICCMS.2009.63","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.63","url":null,"abstract":"As one of the most common network attacks, Denial of service (DoS) usually uses reasonable service requests to take excessive computing and network resources, thus causes the legitimate users to be unable to obtain the service responses. But now little research has performed within the area. This aim of the paper is to develop a double layers detection system for DoS based on the DCs (Dendritic Cells) – T cells interaction mechanism of the Danger Theory in immunology. DCs fuse the multiple signals and present the correlated antigens to T cells, and T cells are responsible for the detection for the structure of the antigens. A large number of semi-connections can be viewed as antigens and the corresponding behavior information of the system and network triggered by these semi-connections can be viewed as signals. The theoretic analysis shows that the method of DCs emphasizing the detection of the signals and T cell emphasizing the detection of the corresponding antigens has a good prospect in the application of DoS detection.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128773642","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}
引用次数: 6
Research on SVG-based Remote Visualization System of Digital Mine Information 基于svg的数字化矿山信息远程可视化系统研究
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.36
Y. Wang, D. Ma
{"title":"Research on SVG-based Remote Visualization System of Digital Mine Information","authors":"Y. Wang, D. Ma","doi":"10.1109/ICCMS.2009.36","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.36","url":null,"abstract":"This paper analyzed data features and configuration characteristics of digital mine [1], researched on its structure and system framework, discussed the principle and designed concept of the remote data services and data exchange, then built on the remote visualization model of digital mine information, used SVG[2] to describe structure data and real time data of monitoring based on plug-in technology, and then published it by Web modal, so that realized remote visualization of digital mine information. This remote visualization system had a strong structural flexibility, maintainability, expandability, and it had widely applied and played an important role in the \"digital mine\" process.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127749120","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}
引用次数: 1
Simulation of Self-Similar Traffic in Switches Using Crossbar and Prioritized VOQs 交换机中自相似业务的交叉排和优先级VOQs仿真
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.17
Xia Yu, Zhuang Juhua
{"title":"Simulation of Self-Similar Traffic in Switches Using Crossbar and Prioritized VOQs","authors":"Xia Yu, Zhuang Juhua","doi":"10.1109/ICCMS.2009.17","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.17","url":null,"abstract":"In this paper, analysis and simulations of splitting and merging self-similar traffic are done on a router/switch which uses prioritized VOQs (Virtual Output Queue) as its input queues and crossbar as its switch fabric. The results of the simulations say that merge traffic with the same Hurst values (no matter what the data rate is) will not change the Hurst value of merged traffic, but merge traffic with different Hurst values (short-range dependent traffic can be considered as the case in which its Hurst value equals 0.5) will result in a traffic whose Hurst value is no more than the maximum and no less than the minimum. Also the splitting of traffic will have a great influence on resulting traffic, even the degree of LRD (Long-Range dependence) is very high in the original traffic, after being split twice at VOQs and priority queues, the degree of LRD is greatly decreased.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131616013","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}
引用次数: 0
Notice of RetractionStudy on Confirming Increasable Bottleneck Device in Complex Product Dynamic Scheduling 关于在复杂产品动态调度中确定可增加瓶颈装置的研究撤回通知
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.24
Zhiqiang Xie, Y. Liu, Shuzhen Hao, Guangyu Tan, F. Wang
{"title":"Notice of RetractionStudy on Confirming Increasable Bottleneck Device in Complex Product Dynamic Scheduling","authors":"Zhiqiang Xie, Y. Liu, Shuzhen Hao, Guangyu Tan, F. Wang","doi":"10.1109/ICCMS.2009.24","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.24","url":null,"abstract":"Aiming at the problem that the machine is single and some machine has effect on the processing efficiency in complex product dynamic scheduling, based on the conceptions of bottleneck device classification and increasable bottleneck device, an algorithm which can confirm the increasable bottleneck device is put forward by calculating the total time of parallel operations and by analyzing the number of immediate predecessors. Calculating the total time of parallel operations for a device can confirm the shrinkable times of increasing this device. When devices have the same total time of parallel operations, choosing the device which has the most number of immediate predecessors can make more operations be processed as soon as possible. The verification and comparison of example show that the aim of improving the production efficiency is achieved by adding the increasable bottleneck device. The algorithm is simple and it can confirm the increasable bottleneck device quickly in complex product dynamic scheduling.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116378848","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}
引用次数: 2
Optimized Parallel Implementation of Gillespie's First Reaction Method on Graphics Processing Units 图形处理单元上Gillespie第一反应方法的优化并行实现
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.42
Cristian Dittamo, Davide Cangelosi
{"title":"Optimized Parallel Implementation of Gillespie's First Reaction Method on Graphics Processing Units","authors":"Cristian Dittamo, Davide Cangelosi","doi":"10.1109/ICCMS.2009.42","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.42","url":null,"abstract":"The simulation of chemical reacting systems is one of the most challenging topics in Systems Biology, due to their complexity and inherent randomness. The Gillespie's Stochastic Simulation Algorithm (SSA) is a standard algorithm to simulate well-stirred biochemical systems, butthe computational burden makes this algorithm slow to compute for many realistic problems. Recent programmability improvements allow non-graphics applications to leverage the Graphics Processing Units'(GPUs) computational power. This paper describes practical issues arising by a parallel implementation on GPU technology, shows how to reduce the memory space required by one of the most known versions of SSA, and presents the application of the implemented algorithm to a test model.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125252950","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}
引用次数: 29
Research of Traffic Safety Simulation Based on 3DS MAX 基于3DS MAX的交通安全仿真研究
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.49
Wenbo Wang
{"title":"Research of Traffic Safety Simulation Based on 3DS MAX","authors":"Wenbo Wang","doi":"10.1109/ICCMS.2009.49","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.49","url":null,"abstract":"With the increase in the number of motor vehicles, the speed of the car must be limited in different weather environment in order to ensure the traffic safety. According to the traffic safety problem in our country now days, 3DS MAX is used in the field of traffic simulation. This paper takes that the speed of car does not exceed 60km/h when the visibility is between 100m to 200m for example. Firstly, the car model is created with 3DS MAX, then, the simulation of car that is going is realized with MaxScript built in 3DS MAX. Experimental results show the correctness of the car’s speed limited on by 3D animation.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117011956","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}
引用次数: 4
UDEC-based Stability Analysis of the Goafs in Fragment Ore Section 基于udec的破碎矿段采空区稳定性分析
2009 International Conference on Computer Modeling and Simulation Pub Date : 2009-02-20 DOI: 10.1109/ICCMS.2009.41
Qingfa Chen, Ke-pin Zhou, Tengteng Long, Jian-hua Hu, Dan Wang
{"title":"UDEC-based Stability Analysis of the Goafs in Fragment Ore Section","authors":"Qingfa Chen, Ke-pin Zhou, Tengteng Long, Jian-hua Hu, Dan Wang","doi":"10.1109/ICCMS.2009.41","DOIUrl":"https://doi.org/10.1109/ICCMS.2009.41","url":null,"abstract":"Taking the fragment ore section of orebody No. 105 with the high value in Gaofeng mine in Guangxi province for example, three representative kinds of goafs in all scales were selected on the basis of the differences of goaf scale, surrounding rock conditions and situ stress field, and their stability were calculated by the universal distinct element code (UDEC). The calculation results showed as follows: 1) with the increase of goaf scale, the tensile stress scope in the goaf roof expanded from 12m to 60m; 2) the tensile failure mode of joints surfaces was primary, and that of ore block was auxiliary; 3) the maximum principal stress peak could reach 40.3MPa which exceeded rock body tensile strength 38.07MPa, but the influence on goaf stability was small because the peak was far away from goaf; 4) the plastic zone in roof changed from 7m to 12m because of the increased scale, so the goaf stability became worse gradually; 5) the objective principles that the whole plastic zone distributed on the left part of goaf roof and no plastic zone in pillar provided reference for choosing proper position of filling wellhead.","PeriodicalId":325964,"journal":{"name":"2009 International Conference on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128959634","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}
引用次数: 1
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