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Статті в журналах з теми "Control engineering, mechatronics and robotics not elsewhere classified"
Nakazawa, Masaru. "Special Issue on Handling of Flexible Object." Journal of Robotics and Mechatronics 10, no. 3 (June 20, 1998): 167–69. http://dx.doi.org/10.20965/jrm.1998.p0167.
Повний текст джерелаДисертації з теми "Control engineering, mechatronics and robotics not elsewhere classified"
(9839792), Peter Thomas. "Evolutionary learning of control and strategies in robot soccer." Thesis, 2003. https://figshare.com/articles/thesis/Evolutionary_learning_of_control_and_strategies_in_robot_soccer/13423691.
Повний текст джерела(9876422), I. Sadasiva. "A real time code generator for power electronic applications and implementation of PWM converter control strategies." Thesis, 2002. https://figshare.com/articles/thesis/A_real_time_code_generator_for_power_electronic_applications_and_implementation_of_PWM_converter_control_strategies/13429301.
Повний текст джерела(9834113), Suryamani Sharma. "Acoustic detection of flying vertebrate pest in fruit orchard: Case study of lorikeets." Thesis, 2018. https://figshare.com/articles/thesis/Acoustic_detection_of_flying_vertebrate_pest_in_fruit_orchard_Case_study_of_lorikeets/13445555.
Повний текст джерела(9809531), Patrick Keleher. "Adaptive and sliding mode control of articulated robot arms using the Liapunov method incorporating constraint inequalities." Thesis, 2003. https://figshare.com/articles/thesis/Adaptive_and_sliding_mode_control_of_articulated_robot_arms_using_the_Liapunov_method_incorporating_constraint_inequalities/21721025.
Повний текст джерелаIn this thesis we investigate the control of rigid robotic manipulators using robust adaptive sliding mode tracking control. Physical state constraints are incorporated using a multiplicative penalty in a Liapunov function from which we obtain analytic control laws that drive the robot's endeffector into a desired fixed target within finite time.
(10716315), Vaibhav Kailas Ahire. "PHYSICS-BASED DIESEL ENGINE MODEL DEVELOPMENT CALIBRATION AND VALIDATION FOR ACCURATE CYLINDER PARAMETERS AND NOX PREDICTION." Thesis, 2021.
Знайти повний текст джерелаStringent regulatory requirements and modern diesel engine technologies have engaged automotive manufacturers and researchers in accurately predicting and controlling diesel engine-out emissions. As a result, engine control systems have become more complex and opaquer, increasing the development time and costs. To address this challenge, Model-based control methods are an effective way to deal with the criticality of the system study and controls. And physics-based combustion engine modeling is a key to achieve it. This thesis focuses on development and validation of a physics-based model for both engine and emissions using model-based design tools from MATLAB & Simulink. Engine model equipped with exhaust gas circulation and variable geometry turbine is adopted from the previously done work which was then integrated with the combustion and emission model that predicts the heat release rates and NOx emission from engine. Combustion model is designed based on the mass fraction burnt from CA10 to CA90 and then NOx predicted using the extended Zeldovich mechanism. The engine models are tuned for both steady state and dynamics test points to account for engine operating range from the performance data. Various engine and combustion parameters are estimated using parameter estimation toolbox from MATLAB and Simulink by applying least squared solver to minimize the error between measured and estimated variables. This model is validated against the virtual engine model developed in GT-power for Cummins 6.7L turbo diesel engine. To account the harmonization of the testing cycles to save engine development time globally, a world harmonized stationary cycle (WHSC) is used for the validation. Sub-systems are validated individually as well as in loop with a complete model for WHSC. Engine model validation showed promising accuracy of more than 88.4 percent in average for the desired parameters required for the NOx prediction. NOx estimation is accurate for the cycle except warm up and cool down phase. However, NOx prediction during these phases is limited due to actual NOx measured data for tuning the model for real time NOx estimation. Results are summarized at the end to compare the trend of NOx estimation from the developed combustion and emission model to show the accuracy of in-cylinder parameters and required for the NOx estimation.
(7023038), Thomas E. Craddock. "Ensuring Large-Displacement Stability in ac Microgrids." Thesis, 2019.
Знайти повний текст джерела(8728027), Venkatanaga Amrusha Aryasomyajula. "RELOCALIZATION AND LOOP CLOSING IN VISION SIMULTANEOUS LOCALIZATION AND MAPPING (VSLAM) OF A MOBILE ROBOT USING ORB METHOD." Thesis, 2020.
Знайти повний текст джерелаIn order to check the performance of the algorithm, the monocular and stereo and RGB-D cameras are used. The aim of this thesis is to show the accuracy of relocalization and loop closing process using ORB SLAM algorithm in a variety of environmental settings. The performance of relocalization and loop closing in different challenging indoor scenarios are demonstrated by conducting various experiments. Experimental results show the applicability of the approach in real time application like autonomous navigation.
(8647860), Aniket Pal. "Design and Fabrication of Soft Biosensors and Actuators." Thesis, 2020.
Знайти повний текст джерелаOne of the largest application of soft materials has been in the field of flexible electronics, especially in wearable sensors. While wearable sensors for physical attributes such as strain, temperature, etc. have been popular, they lack applications and significance from a healthcare perspective. Point-of-care (POC) devices, on the other hand, provide exceptional healthcare value, bringing useful diagnostic tests to the bedside of the patient. POC devices, however, have been developed for only a limited number of health attributes. In this dissertation I propose and demonstrate wireless, wearable POC devices to measure and communicate the level of various analytes in and the properties of multiple biofluids: blood, urine, wound exudate, and sweat.
Along with sensors, another prominent area of soft materials application has been in actuators and robots which mimic biological systems not only in their action but also in their soft structure and actuation mechanisms. In this dissertation I develop design strategies to improve upon current soft robots by programming the storage of elastic strain energy. This strategy enables us to fabricate soft actuators capable of programmable and low energy consuming, yet high speed motion. Collectively, this dissertation demonstrates the use of soft compliant materials as the foundation for developing new sensors and actuators for human use and interaction.
(10725198), Yi Yang. "Electromechanical Characterization of Organic Field-Effect Transistors with Generalized Solid-State and Fractional Drift-Diffusion Models." Thesis, 2021.
Знайти повний текст джерелаThe miniaturization and thinning of wearable, soft robotics and medical devices are soon to require higher performance modeling as the physical flexibility causes direct impacts on the electrical characteristics of the circuit – changing its behavior. As a representative flexible electronic component, the organic field effect transistor (OFET) has attracted much attention in its manufacturing as well as applications. However, as the strain and stress effects are integrated into multiphysics modelers with deeper interactions, the computational complexity and accuracy of OFET modeling is resurfacing as a limiting bottleneck.
The dissertation was organized into three interrelated studies. In the first study, the Mass-Spring-Damper (MSD) model for an inverted staggered thin film transistor (TFT) was proposed to investigate the TFT’s internal stress/strain fields, and the strain effects on the overall characteristics of the TFT. A comparison study with the finite element analysis (FEA) model shows that the MSD model can reduce memory usage and raises the computational convergence speed for rendering the same results as the FEA. The second study developed the generalized solid-state model by incorporating the density of trap states in the band structure of organic semiconductors (OSCs). The introduction of trap states allows the generalized solid-state model to describe the electrical characteristics of both inorganic TFTs and organic field-effect transistors (OFETs). It is revealed through experimental verification that the generalized solid-state model can accurately characterize the bending induced electrical properties of an OFET in the linear and saturation regimes. The third study aims to model the transient and steady-state dynamics of an arbitrary organic semiconductor device under mechanical strain. In this study, the fractional drift-diffusion (Fr-DD) model and its computational scheme with high accuracy and high convergence rate were proposed. Based on simulation and experimental validation, the transconductance and output characteristics of a bendable OFET were found to be well determined by the Fr-DD model not only in the linear and saturation regimes, but also in the subthreshold regime.
(10734243), Attila Lendek. "TIME-VARYING FRACTIONAL-ORDER PID CONTROL FOR MITIGATION OF DERIVATIVE KICK." Thesis, 2021.
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