Converting Circular Motion to Pendulum Motion: The Simple Crank-Slider Assembly

In summary, the conversation discusses different ways to convert circular motion from a motor into pendulum motion for an upside down pendulum project. Suggestions include using an escapement mechanism, magnetic toys, electromagnets, and a simple crank-slider assembly. The crank-slider assembly is recommended as a relatively easy option for achieving the desired motion.
  • #1
chris2547
4
0
Hi I want to build an upsidedown pendulum. My problem is what is the best/most used way of converting a circular motion (from the motor) to a pendulum motion.

Thanks
 
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  • #2
Look up 'escapement' there have been lots of different ones invented over the years.
 
  • #3
  • #4
It may be a little easier to build a simple crank-slider assembly, shown here:
http://en.wikipedia.org/wiki/File:Slidercrank_animation.gif

All you then need to do is connect the slider to another joint, which has a fixed pivot point. Then adjust your lengths to get the speed/angle sweep that you desire.
 
  • #5
Thanks the 'simple crank-slider assembly' was exactly what I was thinking of.
 

1. What is a pendulum motion?

A pendulum motion is a type of harmonic motion where a mass attached to a string or rod swings back and forth around a fixed point. This type of motion follows a specific pattern and can be used to measure time.

2. How do you create a pendulum motion?

To create a pendulum motion, you will need a mass (such as a ball or weight), a string or rod, and a fixed point to attach the string or rod. The mass should be able to swing freely without any obstructions. Once everything is set up, simply pull the mass to one side and release it. The mass should then swing back and forth in a pendulum motion.

3. What factors affect the pendulum's motion?

The length of the string or rod, the mass of the object, and the force of gravity are the main factors that affect the pendulum's motion. The longer the string or rod, the slower the pendulum will swing. The heavier the mass, the slower the pendulum will swing. And the stronger the force of gravity, the faster the pendulum will swing.

4. How does a pendulum motion relate to time?

The time it takes for a pendulum to complete one full swing is known as its period. This period is affected by the length of the string or rod, but for a given length, it remains constant. This is why pendulums have been used historically as timekeeping devices, such as in grandfather clocks.

5. What are some real-life applications of pendulum motion?

Pendulum motion has numerous real-life applications, including timekeeping devices, seismometers to measure earthquakes, and as a way to demonstrate the concept of harmonic motion in physics. It has also been used in early studies of gravity and has influenced the development of mechanical clocks and other timekeeping devices.

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