The learner will understand the design of a planetary gear drive and its advantages and disadvantages.
The learner will gain an understanding of the inner workings of the cycloidal gear drive while watching a video and listening to an explanation of its features.
In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.
The learner will understand the inner workings of the strain wave gear principle.
Learners examine the circuitry in a DC variable speed drive that prevents the motor from running at 0 rpm or at maximum speed under certain conditions.
In this animated activity, learners examine the firing circuits in a DC variable speed drive. The circuits cause the current flow through the armature and rpm to vary. This activity has audio content.
Learners read an analogy comparing an electrical transformer to mechanical gears.
Students follow steps to determine the number of inputs that can be driven by a specific IC. A sample problem is given.
Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.
In this video, you’ll learn how to make changes to an engine lathe.
In this animated and interactive object, learners follow steps that begin with choosing the correct drive roll and include feeding the electrode wire from the spool to the welding gun.
In this animated activity, learners examine the circuitry in a DC variable speed drive that keeps the motor running at a constant speed as the load varies.
Learners will understand how binary-coded decimal information is decoded and used to drive a seven-segment display.
Learners examine the circuitry in a DC variable speed drive that protects the rectifier diodes and motor windings from being damaged due to excessive current.
In this animated lesson, learners examine the rectifier circuitry in a DC variable speed drive that supplies the voltages to the field coil and armature.
In this animated and interactive object, learners examine why the voltage produced by an AC drive must be increased when its frequency is increased due to inductive reactance.
In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.
Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.
In this animated object, learners examine a closed-loop feedback system that uses digital circuits to control the position of a gear rack.
Learners apply lever ratios to calculate the mechanical advantage in basic mechanisms.