Vibration absorber

A dynamically vibration absorber comprising:

• a magnetic dynamic mass having an equilibrium position, wherein the magnetic dynamic mass is translatable away from the equilibrium position;
• a repulsive magnetic system comprising one or more repulsive magnetic elements positioned to resist translation of the magnetic dynamic mass away from the equilibrium position by magnetic repulsion between the one or more repulsive magnetic elements and the magnetic dynamic mass;
• and
• an attractive magnetic system comprising one or more attractive magnetic elements positioned to aid the translation of the magnetic dynamic mass away from the equilibrium position by magnetic attraction between the one or more attractive magnetic elements and the magnetic dynamic mass,
• wherein the magnetic repulsion and the magnetic attraction collectively exert a net magnetic repulsive force on the magnetic dynamic mass that resists the translation of the magnetic dynamic mass away from the equilibrium position;
• wherein one of the repulsive magnetic system and the attractive magnetic system is a first dynamically variable magnetic system comprising:
• at least one field manipulation actuator coupled to the one or more magnetic elements of the first dynamically variable magnetic system and configured to move the one or more magnetic elements of the first dynamically variable magnetic system to adjust the net magnetic repulsive force exerted on the magnetic dynamic mass;
• wherein the magnetic dynamic mass comprises a dynamic magnetic element;
• wherein the one or more attractive magnetic elements comprise a first attractive magnet positioned away from the dynamic magnetic element in a first direction and a second attractive magnet positioned away from the dynamic magnetic element in a second direction opposite the first direction;
• wherein each of the first and second attractive magnets are oriented in attraction to the dynamic magnetic element;
• wherein the attractive magnetic system is the first dynamically variable magnetic system;
• and
• wherein the at least one field manipulation actuator is coupled to the first and second attractive magnets and configured to move the first and second attractive magnets to adjust the net magnetic repulsive force exerted on the magnetic dynamic mass.

A dynamically tuned vibration absorber comprising:

• a magnetic dynamic mass having an equilibrium position, wherein the magnetic dynamic mass is translatable away from the equilibrium position;
• a repulsive magnetic system comprising one or more repulsive magnetic elements positioned to resist translation of the magnetic dynamic mass away from the equilibrium position by magnetic repulsion between the one or more repulsive magnetic elements and the magnetic dynamic mass;
• and
• an attractive magnetic system comprising one or more attractive magnetic elements positioned to aid the translation of the magnetic dynamic mass away from the equilibrium position by magnetic attraction between the one or more attractive magnetic elements and the magnetic dynamic mass;
• wherein the magnetic repulsion and the magnetic attraction collectively exert a net magnetic repulsive force on the magnetic dynamic mass that resists the translation of the magnetic dynamic mass away from the equilibrium position;
• wherein one of the repulsive magnetic system and the attractive magnetic system is a dynamically variable magnetic system, and
• each of the one or more magnetic elements of the dynamically variable magnetic system is an electromagnet, and the net magnetic repulsive force exerted on the magnetic dynamic mass is adjustable based on an electrical current supplied to the one or more electromagnets of the dynamically variable magnetic system;
• wherein the vibration absorber, further comprises:
• a current source electrically coupled to the one or more electromagnets of the dynamically variable magnetic system and configured to supply the one or more electromagnets of the dynamically variable magnetic system with the electrical current;
• a frequency sensor positioned to measure a vibration frequency of an object to which the vibration absorber is secured;
• one or more processors communicatively coupled to the current source and the frequency sensor;
• a memory communicatively coupled to at least one of the processors, the memory storing computer-readable instructions executable by the one or more processors, wherein the computer-readable instructions when executed configure the one or more processors to collectively;
• receive, from the frequency sensor, a vibration frequency signal associated with the object;
• and
• transmit, to the current source, one or more electrical signals to adjust the net magnetic repulsive force exerted on the magnetic dynamic mass based on the vibration frequency signal.