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40 Inventive Principles
Mechanical Vibration

a) Cause an object to oscillate.

b) If oscillation already exists, increase its frequency (even ultrasonic).

c) Use the resonant frequency of an object.

d) Instead of mechanical vibrations, use piezo-electric vibrators.

e) Use ultrasonic vibrations in conjunction with an electromagnetic field.
 

EXAMPLE:
  1. Apply an ultrasonic frequency to separate stuck parts simply.
  2. Ultrasonic frequencies can accelerate chemical reactions and improve the transfer of heat to liquids.
  3. Vibrations can accelerate the reduction of residual stresses in welded and cast parts.