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48585 results in Computer Science

Page 1680 of 2430

  • ROB volume 10 issue 2 Cover and Front matter

  • Journal:
    Robotica / Volume 10 / Issue 2 / March 1992
    Published online by Cambridge University Press:
    09 March 2009, pp. f1-f2
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  • Geometric and algebraic approach to the inverse kinematics of four-link manipulators

  • I. Uzmay, S. Yildirim
  • Journal:
    Robotica / Volume 12 / Issue 1 / January 1994
    Published online by Cambridge University Press:
    09 March 2009, pp. 59-64

  • This paper presents an example of the application of geometric and algebraic approaches to the inverse kinematics problem of four-link robot manipulators. A special arm configuration of the robot manipulator is employed for solving the inverse kinematics problem by using the geometric approach. The obtained joint variables as angular positions are defined in the form of cubic polynomials. The other kinematic parameters of the joints, such as angular velocities and angular accelerations, are the time derivatives of these polynomials. It is evident that there is no definite difference between the results of the two approaches. Consequently, if an appropriate arm configuration for the geometric approach can be established, the inverse kinematics can be solved in a simpler and shorter way.

  • Dynamic direct subspaces for robot path planning

  • W. E. Red, K. H. Kim
  • Journal:
    Robotica / Volume 5 / Issue 1 / January 1987
    Published online by Cambridge University Press:
    09 March 2009, pp. 29-36

  • A direct subspace of a dynamic three-dimensional joint space is found to be useful for robot path planning in workspaces comprised of both static and dynamic objects. Dynamic descriptions permit positioning tables, automated guided vehicles, conveyors and cycling machine tools to be modeled by elements which translate or cycle along rectilinear paths. Graphical path planning procedures use cursor indicators to move the robot configuration point between the desired starting and final configurations while avoiding both the static and dynamic joint space obstacles.

  • Announcements

  • Journal:
    Robotica / Volume 1 / Issue 1 / January 1983
    Published online by Cambridge University Press:
    09 March 2009, pp. 59-60
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  • Obituary (Professor T.C. Helvey)

  • J. Rose
  • Journal:
    Robotica / Volume 10 / Issue 1 / January 1992
    Published online by Cambridge University Press:
    09 March 2009, p. 91
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Page 1680 of 2430