Trying to make an electromagnetic shaker device

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SUMMARY

This discussion focuses on the feasibility of creating an electromagnetic shaker device using a solenoid wrapped around an iron core to shake a magnet. Participants suggest that while this approach is theoretically possible, practical alternatives like a variable speed DC motor with an eccentric weight are more effective for achieving controllable shaking at various power levels. The conversation emphasizes the importance of defining specific requirements such as the weight to be shaken, desired speed, and distance for optimal design considerations.

PREREQUISITES
  • Understanding of electromagnetic principles and solenoid operation
  • Familiarity with variable speed DC motors and their applications
  • Knowledge of mechanical vibration and shaking mechanisms
  • Basic electrical engineering concepts related to power signals
NEXT STEPS
  • Research the design and operation of variable speed DC motors for shaking applications
  • Explore solenoid driver circuits for low-frequency power signals
  • Investigate the mechanical design of eccentric weights for vibration generation
  • Learn about the specifications and capabilities of brushless motors for machine tools
USEFUL FOR

This discussion is beneficial for engineers, hobbyists, and inventors interested in designing electromagnetic devices, as well as those exploring alternatives for vibration and shaking mechanisms in various applications.

derekmatthew
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Hello, I'm trying to make an electromagnetic shaker but I'm not sure if this is possible? Basically I want to wrap an iron core with a solenoid and use AC to shake a magnet at some distance away. I'm not certain on the approach at the moment but I'm kind of looking at the feasibility at the moment.
 
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If you want to shake something at a variable and controllable rate then a variable speed DC motor with an eccentric weight on the shaft will satisfy many requirements. Crude but very effective and will work at a range of powers. 500W Brushless motors are available for small machine tools and they work well. The motor can be fixed rigidly and the eccentric can be at the end of a flexible shaft if you need high power.
Driving a solenoid with a variable low frequency power signal is nothing like as convenient.
What is the precise requirement?
 
Feasibility depends on the power and the distance.

What are you trying to shake?
How fast?
What distance?

As @Bystander said, a speaker is a shaker. But if you want to shake a ton of gravel that's very different.
 
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