Essentials of Mechatronics

Chapter 9 - Robotics, Dynamics, and Kinematics

After all the electronic sensing, signal processing, and computing have been
put into effect, most applications must result in some mechanical movement.
We might be required to look at the theory of coordinating the axes of a robot
to put the workpiece in the correct position or more simply to choose a motor
and gearbox to move a load at a safe top speed.

9.1   GEARS, MOTORS, AND MECHANISMS


Electricity is powerful stuff. It is quite easy to relate electrical power to
mechanical power in metric units, although pounds and feet will require a lot
of conversion factors.

  Consider the following:

  1 kilogram force = 981 newtons
  (so a force of one newt on is about the weight of an apple)
 1 joule = 1 newton-meter
 1 watt = 1 joule per second

So a one-watt motor, if it were 100% efficient, could lift a one-kilogram mass
at a rate of 10 centimeters per second. To lift a 75-kilogram passenger in an
elevator at one meter per second will require

 75 × 9.81 × 1W

 

UNLIMITED FREE
ACCESS
TO THE WORLD'S BEST IDEAS

SUBMIT
Already a GlobalSpec user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your GlobalSpec Experience

Category: DC Motors
Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.