In this paper various methods of ergonomics improvement in electric bicycle pedaling are discussed. the main goal is to control an average amperage of generator powered by a cyclist, but considering the unsteadiness o...
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ISBN:
(纸本)9781467355087;9781467355063
In this paper various methods of ergonomics improvement in electric bicycle pedaling are discussed. the main goal is to control an average amperage of generator powered by a cyclist, but considering the unsteadiness of human legs torque vs. angular position of the support. In the paper, four different approaches for generating the current reference trajectory are compared - two of them use only position signal, and the next two use also velocity signal in the ergonomic improvements calculations.
A new dexterous hand is designed and produced. the shape and structure of the dexterous hand is described, focused on analyzing the layout of tendons and the optimization of the joint radius. Furthermore, a single fin...
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ISBN:
(纸本)9781424478132
A new dexterous hand is designed and produced. the shape and structure of the dexterous hand is described, focused on analyzing the layout of tendons and the optimization of the joint radius. Furthermore, a single finger is controlled by Fuzz-PID with model compensation and the good control precision is achieved. through the study on the single finger control, the master-slave control of the dextrous hand is realized simulating the movement of human hand with a cyber-glove.
the accuracy of a pose measurement system, called PosEye, is investigated. PosEye is a system for real time measurement of the position and orientation, the pose, of a camera (sensor) using the information in its imag...
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ISBN:
(纸本)9781424403417
the accuracy of a pose measurement system, called PosEye, is investigated. PosEye is a system for real time measurement of the position and orientation, the pose, of a camera (sensor) using the information in its image. this sensor is aimed to be mounted on an industrial robot for welding. the investigation was done by comparing the PosEye system position output to that of a coordinate measuring machine. Sources of errors are identified, and suggestions for improvements are made.
In this paper, the problem of choosing the parameters of the controller that provide the desired dynamics of the closed-loop system is considered. the structure of the astatic controller for the marine ship, oriented ...
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ISBN:
(纸本)9781467355087;9781467355063
In this paper, the problem of choosing the parameters of the controller that provide the desired dynamics of the closed-loop system is considered. the structure of the astatic controller for the marine ship, oriented to implementation of all requirements to the quality of dynamic processes is performed. the method of the computer search for the coefficients of the stated control law is offered, computer modeling of the dynamic processes is performed.
the paper presents the proposition of a numerical model of the human circulatory system modification for the purpose of physical reproduction of conditions prevailing in the apex of the heart on a hybrid simulator. th...
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ISBN:
(纸本)9781467355087;9781467355063
the paper presents the proposition of a numerical model of the human circulatory system modification for the purpose of physical reproduction of conditions prevailing in the apex of the heart on a hybrid simulator. this is a physical-numerical stand which performs a generation of hydraulic conditions occurring in the selected points of circulatory system. However, so far, there was no possibility of reproduction the apex of the heart point. the paper presents the nature of the problem and suggest solution. the results of simulation tests and analysis of assumptions correctness are shown. Description of further development works is included.
this paper considers the global robust output regulation problem of nonlinear output feedback systems in the case that both exosystem and high-frequency gain sign are unknown. the unavailability of these information p...
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ISBN:
(纸本)9781479951994
this paper considers the global robust output regulation problem of nonlinear output feedback systems in the case that both exosystem and high-frequency gain sign are unknown. the unavailability of these information poses challenges in the control law design. To solve the output regulation problem, a feedback controller is proposed by integrating the internal model principle, certainty equivalence adaptive control scheme and the Nussbaum gain technique.
this paper is concerned with non-fragile reliable control for positive switched systems with actuator faults. Using linear co-positive Lyapunov functions with linear programming approach, a new non-fragile reliable co...
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ISBN:
(纸本)9781538695821
this paper is concerned with non-fragile reliable control for positive switched systems with actuator faults. Using linear co-positive Lyapunov functions with linear programming approach, a new non-fragile reliable controller is designed based on a gain matrix decomposition technique for positive switched systems. To increase the reliability of the controller, the controller gain perturbation term is introduced for the controller. then, the presented approach is developed to interval positive switched systems. Under the designed controller, the interval closed-loop system is positive and exponentially stable. Finally, a numerical example is given to illustrate the validity of the obtained results.
In this paper, design, simulation and implementation of a decentralized nonlinear feedback linearization controller are addressed. the experimental results are presented, and the performance of the proposed controller...
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ISBN:
(纸本)9781424403417
In this paper, design, simulation and implementation of a decentralized nonlinear feedback linearization controller are addressed. the experimental results are presented, and the performance of the proposed controller is compared with a linear state feedback controller. It has been shown that the nonlinear controller has fairly better results in comparison with linear controller. Some practical tips which have been used to achieve better implementation results are discussed.
the article presents an algorithm for estimating the frequency of an offset sinusoidal signal. Delay operators are applied to the measured signal, and a linear regression model is constructed containing the measured s...
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ISBN:
(纸本)9789897585227
the article presents an algorithm for estimating the frequency of an offset sinusoidal signal. Delay operators are applied to the measured signal, and a linear regression model is constructed containing the measured signals and the constant vector depending on unknown frequency. For the vector regression model, the method cascade reduction is used. A reduction procedure is proposed that allows the original model to be reduced to a reduced one containing a smaller number of unknown parameters. Finally, using the classical gradient method was used to compare the efficiency of the proposed method.
Systems biology is heralded as the future of biology. Many approaches being applied to this new biological field have already been used in engineering systems. In this article we survey the emerging applications of sy...
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ISBN:
(纸本)0780386531
Systems biology is heralded as the future of biology. Many approaches being applied to this new biological field have already been used in engineering systems. In this article we survey the emerging applications of system science and engineering tools in the study of systems biology.
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