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.
Results
Showing 1 to 14 of 14 for “"(3DOF)"”.
-
Design and implimentation of a supervisory safety controller for a 3DOF helicopter
… implementation of a supervisory controller for a 3DOF helicopter. This safety critical system is used in undergraduate laboratories in the Department of Aeronautics and Astronautics at MIT. There already exists a framework for designing a supervisory safety controller for motions about one axis. …
-
Local Positive Velocity Feedback for the movement control of elastic joints in closed kinematic chains : a modelling and simulation study of a 2DoF arm and a 3DoF insect leg
In der Beinbewegungssteuerung von laufenden Tieren (z.B. in unserem Modellsystem, der indischen Stabheuschrecke Carausius morosus) unterscheidet man Stemm- und Schwingbewegungen. Während einer Schwingbewegung hat das schwingende Bein keinerlei Objektkontakt, da es vom Boden abgehoben duch die Luft …
-
ROBUST CONTROL OF AN EVTOL THROUGH TRANSITION WITH A GAIN SCHEDULING LQR CONTROLLER
… is tested through implementation in nonlinear 3DOF and 6DOF simulations. The robustness of the controller is tested through simulating transition and virtual mission profiles.
-
Návrh zkušebního zařízení k hodnocení proudění oleje v převodovém ústrojí při jízdních manévrech
Laboratorní 3DOF pohybová platforma typu 3RRS byla navržena pro reprodukci vybraných pohybových stavů vozidla v laboratorních podmínkách. Platforma je určena především pro zkoušení experimentální převodové sestavy mimo reálné vozidlo, kde lze dosáhnout lepší opakovatelnosti měření. Zařízení …
-
Internal Resonances in Vibration Isolators and Their Control Using Passive and Hybrid Dynamic Vibration Absorbers
… studies in the following ways: (a) a three-DOF (3DOF) model, which better represents practical vibration systems, is employed to investigate the importance of the IRs; (b) the IR problem is studied considering both vibration and noise radiation; and (c) passive and hybrid control approaches using …
-
Numerical Analysis and Parameter Optimization of Portable Oscillating-Body Wave Energy Converters
… waves. Using the three degree-of-freedom (3DOF) model with approximate drag coefficients, the elliptical cross section had a max power of 22.5 W and 6.12% CWR for regular waves and 6.18 W and 1.68% CWR for irregular waves. A mooring stiffness study was performed with the 3DOF model, showing …
-
Optimal self assembly of modular manipulators with active and passive modules
… results from physical experiments in which two 3DOF Shady3D robots and one rigid bar coordinate to self-assemble into a 6DOF manipulator. We then demonstrate cooperative algorithms for forward and inverse kinematics, grasping, and mobility with this arm.
-
AeroDima: a cheetah-inspired aerodynamic tail for rapid manoeuvrability
… and manufactured. The tail, designed to be a 3DOF underactuated system, was designed to test the effects of the tail on high-speed manoeuvres through a roll motion swing of the tail. The system was tested both in simulation and physical experiments. The simulation, developed with MATLAB's …
-
Heating effects on magnetorheological dampers
… performances incorporated in a real structure (3DOF) will be simulated.
-
Design of human-like posture prediction for inverse kinematic posture control of a humanoid robot
… found that the inverse kinematic solution to a 3dof model arm converged within 1% error of the solution within .05 mins processor time using the discomfort human-like constraint in 2d space. Similarly, the inverse kinematic solution to a 7 dof model arm consisting of Leonardo's right arm …
-
Rendezvous approach guidance for uncooperative tumbling satellites
… (MC) analysis in a Three Degrees of Freedom (3DOF) simulation. Fuel use metrics characterize the sensitivity of the algorithm. Fuel consumption is measured by the total velocity changes, or [delta]V, needed to complete the maneuvers. Cumulative [delta]V sensitivity is measured against …
-
Adaptive Torque Control of a Novel 3D-Printed Humanoid Leg
… evaluated on an early prototype consisting of a 3DOF leg, and two actuator test setups for the low-level controller.
-
Augmenting User Interfaces with Haptic Feedback
… that utilise the three degrees-of-freedom (3DOF) capabilities of modern haptic devices to produce assistance that is designed speci�- cally for motion-impaired computer users. To evaluate the e�ectiveness of the new techniques a series of point-and-click experiments were undertaken in …
-
A New Fuzzy Based Stability Index Using Predictive Vehicle Modeling and GPS Data
… is presented. The three degree-of-freedom (3DOF), linear, single track equation set used in the Matlab simulations is derived from first principles. Matlab and TruckSim 7® simulations are performed for five vehicle masses and three forward velocities in a ramp-steer maneuver. Using fuzzy …