Lecture #1 Mechanics of Mechanical Manipulators

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Questions and Answers

What are the two things involved in deriving objects at a beginner level in mechanics of mechanical manipulators?

  • Kinematics and dynamics
  • Force and velocity
  • Acceleration and torque
  • Position and orientation (correct)

Which system is attached to define orientation and position in the context of mechanical manipulators?

  • Dynamic system
  • Kinematic system
  • Frame (correct)
  • Reference system

What does forward kinematics in the context of manipulators primarily study?

  • Position, velocity, acceleration (correct)
  • Joint angles and displacements
  • Forces and torques
  • Degrees of freedom

How are the rigid links in a manipulator connected?

<p>Through joints allowing relative motion (D)</p> Signup and view all the answers

What do rotary joints or revolute joints in a manipulator measure?

<p>Displacements called joint angles (D)</p> Signup and view all the answers

What term is used to represent the number of independent position variables needed to locate all parts of a mechanism?

<p>Degrees of Freedom (B)</p> Signup and view all the answers

What does the leading superscript 'AP' denote in the context of position vectors?

<p>Numerical values that indicate distances along the axes of coordinate system A (B)</p> Signup and view all the answers

How is the orientation of a body in space typically described?

<p>By attaching a coordinate system and describing it relative to a reference system (B)</p> Signup and view all the answers

In the context of orientation description, what does 'B=w.r.t A' refer to?

<p>Orientation description of body B relative to coordinate system A (D)</p> Signup and view all the answers

What is stacked together as columns of a 3 x 3 matrix to describe orientation?

<p>$A\widehat{X_{b}}$, $A\widehat{Y_{B}}$, $A\widehat{Z_{B}}$ (A)</p> Signup and view all the answers

What is required, in addition to position, to specify the complete location of a manipulator hand?

<p>Orientation description (A)</p> Signup and view all the answers

Why is it important to describe a body's orientation relative to a reference system?

<p>To allow for easy translation between different coordinate systems (D)</p> Signup and view all the answers

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