检索结果-内蒙古大学图书馆

International Symposium on Computational and Business Intelligence (ISCBI)

作者： Igor Hagara Pavol Tanuska Faculty of Material Science and Technology Institute of Applied Informatics Automation and Mathematics Slovak Republic

This paper defines how to select the correct method or combinations of methods to minimize the impact of production system and common operation. Before any method is chosen it is necessary to know the primary system and its databases structures for optimal use of the actual data structure setup and the best design for the ETL process. Usually databases structures are categorized into groups, which define their quality. Classification helps to find an ideal method for each group and thus design the solution of the ETL process with minimal impact on the data warehouse and production system.

关键词： Data warehouses Data structures Data mining Production systems Databases Proposals

来源：评论

学校读者我要写书评

暂无评论

Extruder Barrel Temperature Field Control Using the Lumped Input and Distributed Output Approach

Extruder Barrel Temperature Field Control Using the Lumped I...

引用

International Conference on Process Control

作者： Slavomir Lipar Pavol Noga Gabriel Hulko Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology

ISBN: (纸本)9781479909261

Modeling and control of the extruder temperature field is discussed, a process governed by a nonlinear partial differential equation. Utilizing finite element approximation a discretized input/output representation of the system is created with the inputs being powers of heaters and output the extruder temperature field. Local linearization is applied at the operating point and the controller is designed based on the lumped-input and distributed-parameter-output systems approach, using the time-space decoupling of system's dynamics. Results are verified experimentally.

关键词： Distributed parameter systems Extrusion Finite element method Nonlinear partial differential equations Temperature control

来源：评论

学校读者我要写书评

暂无评论

Steel Billet Continuous Induction Heating–Numerical Model and Advanced Control

Steel Billet Continuous Induction Heating–Numerical Model a...

引用

2013 International Conference on applied Mechanics,Materials,and Manufacturing(AMMM 2013)

作者： Juraj Kapusta Juraj Camber Gabriel Hulkó Institute of Automation Measurement and Applied InformaticsFaculty of Mechanical EngineeringSlovak University of Technology

Nowadays,the achievement of proper steel billets temperature profile is not the only design priority of induction heaters for hot forming applications. Due to its high operating costs,its design is constantly improving in terms of electrical and thermal efficiency. Therefore the more efficient multi-coil design starts to be more used in industrial practice. Numerical model of mentioned heater based on partial differential equations were solved by finite element method in virtual software environment. Primary goal of computer modeling was to investigate the thermal dynamics of four-module heater working in steady-state operation regime. Obtained data were applied to design an advanced control circuit based on distributed parameter systems theory. This may open up the opportunity to make further progress in induction heaters design.

关键词： Induction heating of steel Material properties Virtual software environments Temperature field Control Distributed parameter system

来源：评论

学校读者我要写书评

暂无评论

Control of Continuous Steel Billet Induction Heater as Distributed Parameter System

Control of Continuous Steel Billet Induction Heater as Distr...

引用

International Conference on Process Control

作者： Juraj Camber Juraj Kapusta Gabriel Hulko Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology

ISBN: (纸本)9781479909261

Industrial induction heating represents the environmentally clean, contactless method of steel heating. Same time it has high energy consumption, so in recent years, more efficient modular topology of heaters were introduced. Due to its multiple power modules, there is a possibility to apply the distributed parameter system control theory. By the usage of COMSOL Multiphysics solution, the model in the form of lumped-input and distributed-parameter-output system has been built. The process control is performed on the relations between the coil currents fed into four separate modules of heating device and desired billet temperature profile.

关键词： Distributed parameter system Induction heating Temperature field Control COMSOL Virtual software environments

来源：评论

学校读者我要写书评

暂无评论

Experiences with Basic Control Course Supported by MATLAB/SIMULINK Exercises

引用

IFAC Proceedings Volumes 2013年第17期46卷 309-314页

作者： Enikő Kósäné Kalave Istvän Bézi Ruth Bars Institute of Physics University of Debrecen Debrecen Hungary Department of Automation and Applied Informatics Budapest University of Technology and Economics Budapest Hungary Department of Automation and Applied Informatics Budapest University of Technology and Economics MTA-BME Control Engineering Research Group Budapest Hungary

A basic control course is taught for electrical engineering students at the University of Debrecen, Hungary. Through two semesters the students get a basic knowledge on control concepts. Every week there are 2 hours of theoretical lectures immediately followed by 2 hours of MATLAB based interactive computer laboratories. In the curriculum besides the conventional material new aspects of control design such as Youla parametrization have also been included. Practical considerations as e.g. controller saturation are also dealt with. The paper reviews briefly the curriculum and the educational process of this program.

关键词： control education matlab control exercises course curriculum Youla parametrization integrator windup

来源：评论

学校读者我要写书评

暂无评论

IMC Based Robust Controller Design for Distributed Parameter Systems

IMC Based Robust Controller Design for Distributed Parameter...

引用

International Conference on Process Control

作者： Cyril Belavy Filip Vitalos Marcel Vlcek Stanislav Lel'o Marek Michalecko Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology in Bratislava

ISBN: (纸本)9781479909261

In the paper, the robust control of temperature fields of the casting mould in the benchmark casting plant is presented. Temperature fields of the mould are represented by dynamic models in the form of a finite-dimensional approximation of distributed parameter systems. Models are created by means of an experimental identification. The control synthesis is decomposed to the time and space domain. For the control synthesis with internal model control structure in the time domain, an uncertainty of the controlled system is considered and robust controllers are designed.

关键词： Distributed parameter systems Uncertainty Robust control Temperature field Casting mould

来源：评论

学校读者我要写书评

暂无评论

Real-time Implementation of an Adaptive Feedback and Feedforward Generalized Predictive Controller

Real-time Implementation of an Adaptive Feedback and Feedfor...

引用

International Conference on Process Control

作者： Martin Gulan Michal Salaj Boris Rohal'-Ilkiv Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology in Bratislava

ISBN: (纸本)9781479909261

This paper is devoted to the measurable disturbance rejection problem in Generalized Predictive Control (GPC) using an adaptive GPC controller, which combines the process of on-line system identification and the process of generalized predictive feedback controller design. In this work, the GPC algorithm is extended to the case when the measurable disturbances are available for feedforward control. The proposed adaptive GPC algorithm with/without future disturbance compensation is implemented in real time and experimentally demonstrated for the application of motor revolutions tracking when subjected to deterministic and pseudo-random disturbance signals. The constraint handling capabilities of the controller are considered as well.

关键词： FEEDFORWARD GYPC gene System identification Predictive controllers Controllers Disturbance rejection Self tuning deterministic controller design

来源：评论

学校读者我要写书评

暂无评论

On-line Identification Using Hybrid Method of Regularized Exponential Forgetting

On-line Identification Using Hybrid Method of Regularized Ex...

引用

International Conference on Process Control

作者： Jan Vachalek Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology in Bratislava

ISBN: (纸本)9781479909261

The paper compares the ability of forgetting methods to track time varying parameters using various method of regularized exponential forgetting (REF). Three forgetting methods are analyzed in this paper: regularized exponential forgetting, second is regularized exponential forgetting with alternative covariance matrix (REFACM) and third is the novel hybrid regularized exponential forgetting method with a choice to disable or enable alternative covariance matrix (HREFACM). The comparison is performed in the terms of the quality of the observed output parameters. The observed parameters for all benchmarks are the integral sum of the Euclidean norm of the deviation of the parameter estimates from their true values (IS) and a selected band prediction error count (PE). As a supplementary information the eigenvalues of the covariance matrix are observed. All algorithms are validated by simulations in the Matlab Simulink software environment.

关键词： variance covariance matrix forgetting Euclidean norm Exponential Covariance matrix on-line identification BENCHMARKS time varying parameters

来源：评论

学校读者我要写书评

暂无评论

Adaptive Control Design for Vehicle Suspension

Adaptive Control Design for Vehicle Suspension

引用

International Conference on Process Control

作者： Monika Zuscikova Milan Loksik Vladimir Villaverde Huertas Cyril Belavy Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology in Bratislava

ISBN: (纸本)9781479909261

This paper addresses the adaptive control design of a semi-active suspension system. The control system is focused on the driving comfort criteria. For this purpose, it is necessary to emphasize on modeling and connection between vehicle suspension system components. On the other hand, we will compare the obtained results using the designed adaptive control system with the optimal control design applying soft and hard suspension. Moreover, a hydro-pulse will be used for road vibration simulation purposes. In this case, the analysis has been performed over the frequency bandwidth 4-20 Hz considering a constant vehicle speed 80 km/h.

关键词： Semi-active suspension Full-car model Semi-active damper Adaptive control Optimal control

来源：评论

学校读者我要写书评

暂无评论

Safety Analysis for Complex Dynamic Systems

Safety Analysis for Complex Dynamic Systems

引用

The 2013 2nd International Symposium on Manufacturing Systems Engineering(ISMSE 2013)

作者： Milan Strbo Pavol Tanuska Lukas Smolarik Igor Hagara Augustin Gese Institute of Applied Informatics Automation and Mathematics Faculty of Materials Science and Technology Slovak University of Technology in Bratislava

The content of this article is the proposal of process of the safety analysis for complex dynamic systemsThe safety analysis is carried out in process of the proposal of control system for safety-critical processesIn preliminary hazard analysis is done the identifying all possible risks by PHI methodThe PHA method is used to analyze these risksThe method of safety analysis depends on various safety-critical states of system which are system are controlled by modelsWe propose to use the method SQMD for modeling these statesThis method combines qualitative and quantitative methods of modeling states and takes advantage of both methodsThe model of the proposal is shown in the diagramThe article includes detailed description of the tasks for each step of analysis.

关键词： Safety analysis Complex dynamic system Qualitative and quantitative model

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：