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1 Dongjun Lee Motion Control of Robotic Manipulators Dongjun Lee (이동준) Department of Mechanical & Aerospace Engineering Seoul National University Dongjun Lee Computed Torque Control exact dynamics cancelation

Computed Torque Controlocw.snu.ac.kr/sites/default/files/NOTE/06_Motion Control.pdf · 2018. 4. 16. · 1 DongjunLee Motion Control of Robotic Manipulators Dongjun Lee (이동준)

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  • 1

    Dongjun Lee

    Motion Control of Robotic Manipulators

    Dongjun Lee (이동준)

    Department of Mechanical & Aerospace EngineeringSeoul National University

    Dongjun Lee

    Computed Torque Control

    exact dynamics cancelation

  • 2

    Dongjun Lee

    Stabiliy of Second‐Order LTI System

    Dongjun Lee

    Cross‐Coupling Term

    cross‐coupling term

  • 3

    Dongjun Lee

    Lyapunov Stability ‐Definition

    (1857‐1918)

    Dongjun Lee

    Lyapunov Stability ‐ Examples

  • 4

    Dongjun Lee

    Lyapunov Direct Theorem

    x

    V

    negative‐definite

    negativesemi‐definite

    Dongjun Lee

    Lyapunov Stability – Non‐autonomous System

  • 5

    Dongjun Lee

    Lyapunov Direct Theorem

    decrescent condition

    strictly‐increasing with (0)=0

    Dongjun Lee

    Passivity‐Based Control

    feedforward (inverse dynamics) kinematic feedback

  • 6

    Dongjun Lee

    Passivity‐Based Tracking Control

    dynamics utilized

    Dongjun Lee

    Passivity‐Based Stabilization

  • 7

    Dongjun Lee

    Invariance Principle

    Dongjun Lee

    Passivity‐Based Tracking Control

  • 8

    Dongjun Lee

    Barbalat’s Lemma

    Dongjun Lee

    Trajectory Tracking Convergence Proof

  • 9

    Dongjun Lee

    Trajectory Tracking Control ‐Theorem

    Dongjun Lee

    Alternative Passivity‐Based Control with r

  • 10

    Dongjun Lee

    Effect of Uncertainty ‐ I

    Dongjun Lee

    Effect of Uncertainty ‐ II

    uncertainty

    matching uncertainty: appears in same channel with control

    negative‐definiteas before

    want to make still negativeeven with uncertainty

  • 11

    Dongjun Lee

    Passivity‐Based Robust Control

    matched uncertainty

    Dongjun Lee

    Boundary‐Layer Approximation

    hold for all t

  • 12

    Dongjun Lee

    Ultimate Boundedness

    Dongjun Lee

    Passivity‐Based Adaptive Control

    passivity (cf. CLF)

  • 13

    Dongjun Lee

    Convergence Proof

    Dongjun Lee

    Observability of LTV Systems

  • 14

    Dongjun Lee

    Observability Grammian

    Dongjun Lee

    Persistency of Excitation

  • 15

    Dongjun Lee

    Workspace EF Control

    Dongjun Lee

    Workspace Dynamics

  • 16

    Dongjun Lee

    Workspace Control

    wrench sensing

    Dongjun Lee

    Workspace Control: Example