Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 47 for “"Phase plane"”.
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Phase Plane Theory of Transistor Bistable Circuits
Made available in DSpace on 2014-12-04T21:03:40Z (GMT). No. of bitstreams: 1 6402950.pdf: 6378440 bytes, checksum: fa53b1c894f16dde7259b81b699830f1 (MD5) Previous issue date: 1963
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Phase-plane analysis of nonlinear sampled-data servomechanisms
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1954.
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ANALYSIS AND SIMULATION OF STEPPING MOTOR SYSTEMS USING A PHASE PLANE APPROACH
… the major failure modes for stepping motors. The phase plane, a plot of motor velocity versus position, is used to graphically display the computer solutions of the mathematical model. This method offers the advantage of organizing the solutions in a very compact format and brings order to an …
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THE ANALYSIS AND SIMULATION OF HYBRID STEPPING MOTORS USING THE PHASE PLANE APPROACH
… results of this model are displayed using the phase plane and considerable insight into the motor's performance and operating characteristics are obtained. In this work the model is modified to describe the hybrid stepping motor by including inductance, magnetic saturation, hysteresis and eddy …
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Composite Phase Plane and Extremal Methods in the Stability Analysis of Distributed Parameter Reactor Systems
Made available in DSpace on 2014-12-08T23:18:19Z (GMT). No. of bitstreams: 1 6711933.pdf: 9973894 bytes, checksum: 664758c8e1c0c5dde82cc89daed3ad65 (MD5) Previous issue date: 1967
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Phase Plane Solution for Systems Using Nonlinear Two-Phase Servomotor Andmeasurement of Instantaneous Electromagnetic Torque
Made available in DSpace on 2014-12-04T21:03:24Z (GMT). No. of bitstreams: 1 6200562.pdf: 3965708 bytes, checksum: 7f7293b497af063075c929690e4e8020 (MD5) Previous issue date: 1961
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The Determination of Optimum Paths in The Phase Plane for Dynamic Systemsusing Calculus of Variations Techniques
Made available in DSpace on 2014-12-04T21:03:20Z (GMT). No. of bitstreams: 1 6101621.pdf: 3067290 bytes, checksum: f1dd43834c4e9464df87077a5799b0e0 (MD5) Previous issue date: 1961
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Comparison of Time Series and Functional Data Analysis for the Study of Seasonality.
… method of functional data analysis has proposed phase-plane plots for the representation of each year of a time series. However, the study of seasonality within functional data analysis has not been explored extensively. Time series analysis is first introduced, followed by phase-plane plot …
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Stability and instability in the coordination of multijoint limb movements
… limb motions in configuration space and joint phase planes, as measured by pattern recognition techniques, showed deviations from nonperturbation patterns at low levels of added friction. Phase plane stability, as measured by deviations in the phase plane from the mean nonperturbation pattern …
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Variable structure control systems
… applied to the system. In practice, the phase plane representative point does not slide at infinite frequency with infinitesimal amplitude along the switching surface(s). Thus, the concept of a quasi-sliding regime was introduced. For high performance system specifications, the phase …
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Terminal control of a variable-stability slender reentry vehicle
… settling time. A saturated control drives the phase plane trajectory toward a region of satisfactory linear control, where the LQ-servo controller is properly initialized and controls the phase plane trajectory to the reference command. SLC does not provide appreciable robustness gains compared …
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Large signal transient analysis of duty ratio controlled DC-to-DC converter
… dc-to-dc converters is investigated using the phase-plane technique. The transition pattern of large-signal trajectories is provided in terms of the circuit parameter and operating conditions. Several transient trajectories of practical interest including start-up, step input voltage change and …
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A study of motor control in healthy subjects and in Parkinson's disease patients
… the elbow to remain within a closed shape on a phase plane. Three closed shapes required varying frequency/amplitude combinations of elbow movement. The task was performed with and without visual feedback. Analysis of data from the healthy control subjects revealed a non-monotonic relation …
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Análise de vibração de uma haste sob a ação de forca centrifuga e de Coriolis
… Ljapunov; the analysis of motion is done in the phase plane where one can integrate the equation of the trajectory. Some numerical results are presented related to this integration in the case of the flexible bar.
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Beyond the tanh method-looking for explicit travelling wave solutions to partial differential equations
… existence of travelling wave solutions by using phase plane analysis. We show that popular methods such as the tanh-method, G0/G-method and many more are special cases of the presented approach. Analytical solutions to several examples of nonlinear equations are illustrated. In the application, …
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System Characterization, Control and Optimal Feed -Rate Scheduling for High -Speed Machining and Nano Positioning
… By studying the behavior of the algorithm in the phase plane, global optimality of this feedrate-optimization algorithm is proved.
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Multiple Solutions on a Ball for a Generalized Lane Emden Equation
… in n dimensions. We extend the analysis to the phase plane for a clear understanding of the behavior of solutions and the relationship between their existence and the growth of nonlinear terms, where we investigate the critical exponent p and a sub-critical exponent, which we refer to as ^p. We …
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Three-dimensional display of phase space diagrams
Phase plane analysis of linear and nonlinear systems has been widely in recent years. These graphical displays give considerable insight into system response. A serious short coming of this procedure is the limitation to two dimensions. A third-order system must be studied on two, two-dimensional …
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Modeling projection neuron and neuromodulatory effects on a rhythmic neuronal network
… in which the LG neuron and INTl burst in anti-phase due to their reciprocal inhibition. However, bath application of the neuromodulator PK elicits a similar gastric mill rhythm in the absence of MCN 1 participation; yet, the mechanism that underlies the PK-elicited rhythm is unknown. This …
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Investigating our dynamic solar corona from near Sun to 1 AU
… propagate through the heliosphere and into interplanetary space. By analysing observations from two vantage points of Sun-centred, and coronagraph stereoscopic data, provided by the NASA STEREO spacecraft, a triangulation technique is used to pin-point the location of the CME’s leading edge in …
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