Control Structure Research Papers - Academia.edu (original) (raw)

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- Management, Marketing, Agency Theory, Organization Theory

AbstractThis paper reports on the control structure of the pneumatic biped Lucy. The robot is actuated with pleated pneumatic artificial muscles, which have interesting characteristics that can be exploited for legged machines. They have... more

- by ronald van ham
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- Thermodynamics, Dynamic control, Qualitative evaluation, Dynamic Simulation

The increased use of changeable characteristics in modern manufacturing and robotic systems and applications call for improved system control design that offers some degree of reconfigurability. The need for control reconfiguration of... more

- by ahmed azab
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- Cognitive Science, Supervisory Control, Controller Design, Environmental Change
- by Argimiro R. Secchi
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- Chemical Engineering, Process Control, Stability, Process
- by Martin Bouchard
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- Neural Networks, Vibration Control, Convergence, Neural Network

In this study, a path smoothing strategy is proposed for sensor-based coverage problems. Smooth paths are generated for the coverage problems considering mobile robot kinematics constraints. An open agent architecture-based control structure is used to implement the proposed approach on real robots. The algorithm is coded with C++ and implemented on P3-DX mobile robots in MobileSim simulation environments. It is

- by Osman Parlaktuna
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- Mobile Robotics, Multiagent Robotics, Autonomous Robotics, Path planning

The work reported here is part of the PROGRES (PROgrammed Graph Rewriting Systems) project. PROGRES is a very high level multi paradigm language for the specification of complex structured data types and their operations. The data structures are modelled as directed, attributed, node and edge labelled graphs (diane graphs). The basic programming constructs of PROGRES are graph rewriting rules (productions and tests) and derived relations on nodes (paths and restrictions). These basic operations may be combined to build partly imperative, partly rule based, complex graph transformations by special control structures which regard the nondeterministic nature of graph rewriting rules. PROGRES offers its users a convenient, partly textual, partly graphical concrete syntax and a rich system of consistency checking rules for the underlying calculus of programmed diane-graph rewriting systems. This paper presents the key techniques used for the execution of PROGRES programs. We will discuss...

- by Albert Zündorf
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- Computer Science, Flow Control, Graph Transformation, Data Structure
- by Aloysius Mok
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- Process Control, Resource Allocation, Distributed System, Software Design
- by Jaime A Moreno
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- Linear Algebra, Control Structure
- by V. Wade
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- Evidence Based Medicine, Health Studies, Ireland, Library and Information Studies
- by Donna Rhodes
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- System Design, Insight, Conceptual Design, System of Systems
- by Alex Bystrov
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- Process Control, Taxonomy, Petri Nets, Fault Tolerance
- by Kimberly Eddleston
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- Marketing, Family Business, Leadership, Business and Management

Development environments for embedded systems are moving towards increased automation between Commercial Of The Shelf (COTS) engineering tools. While automation provides new opportunities for e.g. verification, it also to some extent decreases the possibility of identifying and acting on safety issues that arise during development. To investigate the relationship between tool integration and safety we performed a System-Theoretic Process Analysis

- by F. Asplund
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- expert System, Environment and Development, Process Analysis, Control Structure
- by T. Orlowska-Kowalska
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- Fuzzy Logic Control, Adaptive Control, Motion control, Robust control
- by Salma El Aimani
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- Wind Energy, Wind turbine, Transient analysis, Control Structure
- by Somnuk Phon-Amnuaisuk
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- Symbolic Computation, Structural Control, Problem Solving, Computer Model
- by Tsun Chow
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- Information Systems, Software Testing, Process Control, Automata
- by Peter Beek
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- Cognitive Science, Mathematics, Kinetics, Principal Component Analysis
- by Narsing Rao
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- Survey, Humans, Optic Nerve, Glaucoma
- by Vadivel S
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- Electrical Engineering, Vlsi Design, System Integration, Flow Control
- by Taoufik Ghamraoui
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- Finite Element, Dynamic control, Mathematical Sciences, Physical sciences
- by César Trujillo
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- Engineering, Economics, Transfer Function, Energy Storage

This paper presents a nonlinear robust control strategy to solve the path tracking problem for a quadrotor unmanned aerial vehicle. The helicopter motion equations is obtained by the Lagrange- Euler formalism. The control structure is performed through a nonlinear Hinfin controller to stabilize the rotational movements and a control law based on backstepping approach to track the reference trajectory. Finally, simulations results in presence of aerodynamic moments disturbances and parametric uncertainty is carried out to corroborate the effectiveness and the robustness of the strategy proposed.

- by Guilherme V . Raffo
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- Robust control, Acc, Control Structure, Path Tracking
- by Woei-Leong Chan
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- Remote Sensing, Engineering Education, Aircraft Design, System Engineering

The paper focuses on the reconfiguration process of vector control systems of the induction motor supplied from the tandem (hybrid) static-frequency converter. Reconfigurable control structure ensures different strategies for operating modes with non-failed and partial-failed converter. The reconfiguration process introduces perturbations in the vector controlled AC drives. The paper analyses the perturbation effects of the control system reconfiguration and presents

Mountain streams are here defined as channel networks within mountainous regions of the world. This definition encompasses tremendous diversity of physical and biological conditions, as well as history of land use. Human effects on mountain streams may result from activities undertaken within the stream channel that directly alter channel geometry, the dynamics of water and sediment movement, contaminants in the

- by Ellen Wohl
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- Geology, Geomorphology, Papua New Guinea, Water Pollution
- by Takahisa Mizuyama
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- Control Structure

Hydrological modifications frequently result in wetland loss and degradation while wetland management, restoration and creation schemes rely upon further hydrological manipulations. These schemes can benefit from models which can accurately represent often complex wetland hydrological situations. Although the potential of the physically based, distributed model MIKE SHE to model wetlands has been demonstrated, a number of inadequacies in its channel

- by Julian Thompson
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- Hydrology, Multidisciplinary, Model Calibration, Hydrological modelling

This paper presents an integral predictive and nonlinear robust control strategy to solve the path following problem for a quadrotor helicopter. The dynamic motion equations are obtained by the Lagrange–Euler formalism. The proposed control structure is a hierarchical scheme consisting of a model predictive controller (mpc) to track the reference trajectory together with a nonlinear H∞H∞ controller to stabilize the rotational movements. In both controllers the integral of the position error is considered, allowing the achievement of a null steady-state error when sustained disturbances are acting on the system. Simulation results in the presence of aerodynamic disturbances, parametric and structural uncertainties are presented to corroborate the effectiveness and the robustness of the proposed strategy.

- by Guilherme V . Raffo
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- Engineering, Model Predictive Control, Modeling, Aerodynamics
- by Mehdi Savaghebi
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- Control system, Reactive Power, Control Structure, point of common coupling (PCC)
- by sourabh gupta
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- Mechanical Engineering, Chemical Engineering, Process Control, Comparative Study
- by Randall Morck
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- Economics, Political Economy, Property Rights, Corporate Governance
- by Mehdi Savaghebi
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- Reactive Power, Control Structure, Distributed Generators, Hierarchical Control
- by Erol Gelenbe
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- Information Systems, Computer Software, Combinatorial Problems, Control Structure
- by Nitin Kaistha
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- Chemical Engineering, Production, Process Control, Compressor
- by Ryszard Strzelecki
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- Power System, Reactive Power, High Power, Control Structure
- by Michael Nikolaou
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- Chemical Engineering, Process Control, Control Structure
- by Francisco Rubio
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- Robust control, Acc, Control Structure
- by Mehdi Savaghebi
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- Quality Improvement, Control system, Reactive Power, Control Structure
- by Aytac Guven and +1
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- Civil Engineering, Hydraulics, Data Analysis, Modeling
- by Rolf Pfiffner
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- Nonlinear Control, Model validation, Fossil Fuels, Boosting

Reconfigurable manufacturing systems offer quick adjustment of production capacity and functionality in response to unpredictable market changes as being systems designed at the outset for rapid change in system configuration, its machines and controls. During the production process, out-of-ordinary events occur dynamically and unpredictably both at the system (machine breakdowns, change in job's priorities, etc.) and at the cell level (tool failures, robot collisions, etc.). Such exceptions interrupt the production process by causing errors in the schedule plan (system level) or in the task plan (cell level). Error handling is the policy meant for reacting to errors caused by the occurrence of out-of-ordinary events. The reconfiguration ability turns out to be the new technological factor enabling new strategies to handle out-of-ordinary events of the production process. Both economic and performance aspects need to be considered in order to make a decision in support of particular error handling policies such as using reconfiguration. This paper, starting from a simulation case study, highlights advantage of using reconfiguration for error handling. Authors propose an object-oriented high-level control structure for real-time error handling, which integrates the new reconfiguration for error handling technology with the existing reactive scheduling system.

- by Zbigniew Pasek and +1
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- Operations Management, Multidisciplinary, System Design, Production economics