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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Dynamics and synthesis of kinematic chains with impact and clearance

Stoenescu, Eleonor D., Marghitu, Dan B. January 2005 (has links) (PDF)
Dissertation (Ph.D.)--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references (p.144-149).
42

Design and optimum operation of a re-configurable planar Gough-Stewart machining platform

Du Plessis, Lukas Johannes. January 2001 (has links)
Thesis (Ph.D.(Mechanical Engineering))--University of Pretoria, 2001. Includes bibliographical references. / Summaries in Afrikaans and English.
43

Computer-aided-design of a robotic leg for an adaptive suspension vehicle

Wang, Joe C. January 1982 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 72-76).
44

Kinematics of helical filament winding on circular and elliptic cylindrical mandrels

Maki, Sandra January 1988 (has links)
No description available.
45

Design of plane four-bar function generators by curve matching

Brown, Robert Saul January 1968 (has links)
This thesis presents two methods for designing four-bar function generators by matching a plot of the desired function with curves and charts derived from the computer solution of the displacement equation relating the input and output angles of the four-bar linkage. A series of curves and charts is presented for various assumed ratios of link lengths. An accuracy check procedure is presented, and tabulated computer data are included so that accuracy checks can be made for the function generators designed by these methods. / M.S.
46

Numerical inverse kinematics for a six-degree-of-freedom manipulator

Cordle, William H. 05 December 2009 (has links)
This work bridges the gap between theory and practice. The development of general inverse kinematic solution techniques is new, hence few detailed applications of these methods exist. Before methods such as these were available, most commercial manipulators were designed to be geometrically simple, yielding 4th or lower degree governing equations. With the further development and application of these techniques, industry will be capable of implementing more complex manipulators for highly specialized tasks. A general inverse kinematic analysis technique is applied to an industrial manipulator designed for the inspection of nuclear reactor vessels. The analysis is performed by solving the 16th degree univariate displacement polynomial of the general six-degree-of-freedom arm using an equivalent seven-degree-of-freedom closed-loop spatial chain. All possible combinations of joint angles for a given hand position and orientation are obtained. A region in which the manipulator has the maximum number of solutions is used as a numerical example. The inverse kinematic analysis was programmed in C, which is included in Appendix D. / Master of Science
47

Adaptive control of a four-bar linkage

Carlson, Stephen O. 09 November 2012 (has links)
Three discrete-time adaptive controllers are developed and applied to Four-bar linkage velocity control to reduce the input link velocity fluctuations without compromising the control system velocity transient response. The successful control techniques use the known mechanism kinematics and the mechanism input link position to control the nonlinear mechanism dynamics. The study shows that the adaptive controls are feasible to implement using current microprocessor technology, and the velocity control performance is improved when compared to an industry-standard analog servomotor control. However, more development is required to realize the full potential of the adaptive control technique. A nonlinear Four-bar dynamic model is developed using Kinematic Influence Coefficients. This model is used to develop the adaptive controls and to computer simulate the control scheme performances. The simulated model velocity response is compared qualitatively to experimental data and shown to be similar to an experimental device. / Master of Science
48

Die gleichmässige Approximation von Geraden und Kreisbögen durch symmetrische Koppelkurven viergliedriger Gelenkgetriebe /

Schlüter, Olaf. January 1900 (has links)
Thesis--Universität Dresden, 2008. / Includes bibliographical references.
49

Discrete trajectory planners for robotic arms / by Hwee Huat Tan

Tan Hwee Huat January 1988 (has links)
Typescript (Photocopy) / Includes paper co-authored by the author as attachment / Bibliography: leaves 133-140 / vii, 140, [12] leaves : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Applied Mathematics, 1988
50

Virtual manufacturing of pockets using end milling with multiple tool paths

Pisipati, Deepak. January 2004 (has links)
Thesis (M.S.)--Ohio University, June, 2004. / Title from PDF t.p. Includes bibliographical references (leaves 96-99).

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